/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_5.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 08:03:50,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 08:03:50,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 08:03:50,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 08:03:50,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 08:03:50,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 08:03:50,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 08:03:50,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 08:03:50,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 08:03:50,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 08:03:50,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 08:03:50,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 08:03:50,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 08:03:50,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 08:03:50,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 08:03:50,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 08:03:50,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 08:03:50,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 08:03:50,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 08:03:50,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 08:03:50,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 08:03:50,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 08:03:50,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 08:03:50,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 08:03:50,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 08:03:50,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 08:03:50,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 08:03:50,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 08:03:50,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 08:03:50,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 08:03:50,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 08:03:50,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 08:03:50,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 08:03:50,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 08:03:50,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 08:03:50,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 08:03:50,784 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf [2021-03-25 08:03:50,799 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 08:03:50,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 08:03:50,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 08:03:50,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 08:03:50,800 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 08:03:50,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 08:03:50,801 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 08:03:50,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 08:03:50,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 08:03:50,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 08:03:50,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 08:03:50,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 08:03:50,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 08:03:50,802 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 08:03:50,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 08:03:50,802 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 08:03:50,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 08:03:50,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 08:03:50,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 08:03:50,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 08:03:50,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 08:03:50,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 08:03:50,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 08:03:50,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 08:03:50,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 08:03:50,803 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 08:03:50,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 08:03:50,803 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 08:03:50,803 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 08:03:50,804 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 08:03:50,804 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 08:03:51,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 08:03:51,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 08:03:51,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 08:03:51,065 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-25 08:03:51,069 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-25 08:03:51,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_5.bpl [2021-03-25 08:03:51,070 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_5.bpl' [2021-03-25 08:03:51,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 08:03:51,111 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-25 08:03:51,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 08:03:51,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 08:03:51,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 08:03:51,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:03:51" (1/1) ... [2021-03-25 08:03:51,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:03:51" (1/1) ... [2021-03-25 08:03:51,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 08:03:51,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 08:03:51,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 08:03:51,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 08:03:51,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:03:51" (1/1) ... [2021-03-25 08:03:51,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:03:51" (1/1) ... [2021-03-25 08:03:51,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:03:51" (1/1) ... [2021-03-25 08:03:51,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:03:51" (1/1) ... [2021-03-25 08:03:51,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:03:51" (1/1) ... [2021-03-25 08:03:51,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:03:51" (1/1) ... [2021-03-25 08:03:51,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:03:51" (1/1) ... [2021-03-25 08:03:51,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 08:03:51,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 08:03:51,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 08:03:51,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 08:03:51,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:03:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 08:03:51,201 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-25 08:03:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-25 08:03:51,203 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-25 08:03:51,203 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-25 08:03:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-25 08:03:51,204 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-25 08:03:51,204 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-03-25 08:03:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-03-25 08:03:51,204 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-03-25 08:03:51,204 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-03-25 08:03:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-03-25 08:03:51,204 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-03-25 08:03:51,204 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-25 08:03:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-25 08:03:51,204 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-25 08:03:51,205 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-25 08:03:51,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 08:03:51,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 08:03:51,206 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 08:03:51,349 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 08:03:51,350 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-25 08:03:51,351 INFO L202 PluginConnector]: Adding new model example_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 08:03:51 BoogieIcfgContainer [2021-03-25 08:03:51,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 08:03:51,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 08:03:51,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 08:03:51,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 08:03:51,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:03:51" (1/2) ... [2021-03-25 08:03:51,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57381e57 and model type example_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 08:03:51, skipping insertion in model container [2021-03-25 08:03:51,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 08:03:51" (2/2) ... [2021-03-25 08:03:51,360 INFO L111 eAbstractionObserver]: Analyzing ICFG example_5.bpl [2021-03-25 08:03:51,366 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 08:03:51,368 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 08:03:51,369 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 08:03:51,470 INFO L149 ThreadInstanceAdder]: Constructed 25 joinOtherThreadTransitions. [2021-03-25 08:03:51,482 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-25 08:03:51,516 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 08:03:51,517 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 08:03:51,517 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 08:03:51,517 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 08:03:51,517 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 08:03:51,517 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 08:03:51,517 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 08:03:51,517 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 08:03:51,542 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 48 transitions, 196 flow [2021-03-25 08:03:51,590 INFO L129 PetriNetUnfolder]: 49/98 cut-off events. [2021-03-25 08:03:51,591 INFO L130 PetriNetUnfolder]: For 80/80 co-relation queries the response was YES. [2021-03-25 08:03:51,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 98 events. 49/98 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 331 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 86. Up to 30 conditions per place. [2021-03-25 08:03:51,596 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 48 transitions, 196 flow [2021-03-25 08:03:51,601 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 41 transitions, 172 flow [2021-03-25 08:03:51,602 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:51,609 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 41 transitions, 172 flow [2021-03-25 08:03:51,614 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 41 transitions, 172 flow [2021-03-25 08:03:51,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 41 transitions, 172 flow [2021-03-25 08:03:51,649 INFO L129 PetriNetUnfolder]: 49/96 cut-off events. [2021-03-25 08:03:51,649 INFO L130 PetriNetUnfolder]: For 80/80 co-relation queries the response was YES. [2021-03-25 08:03:51,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 96 events. 49/96 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 272 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 86. Up to 30 conditions per place. [2021-03-25 08:03:51,651 INFO L142 LiptonReduction]: Number of co-enabled transitions 440 [2021-03-25 08:03:51,703 INFO L154 LiptonReduction]: Checked pairs total: 130 [2021-03-25 08:03:51,704 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 08:03:51,708 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 107 [2021-03-25 08:03:51,731 INFO L129 PetriNetUnfolder]: 49/90 cut-off events. [2021-03-25 08:03:51,731 INFO L130 PetriNetUnfolder]: For 80/80 co-relation queries the response was YES. [2021-03-25 08:03:51,731 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:51,732 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:51,732 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:51,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:51,752 INFO L82 PathProgramCache]: Analyzing trace with hash 558068446, now seen corresponding path program 1 times [2021-03-25 08:03:51,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:51,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585381682] [2021-03-25 08:03:51,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:51,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:51,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:51,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:51,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:03:51,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:51,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:51,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:51,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585381682] [2021-03-25 08:03:51,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:51,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 08:03:51,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090653226] [2021-03-25 08:03:51,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 08:03:51,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:51,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 08:03:51,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 08:03:51,910 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 53 [2021-03-25 08:03:51,911 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 36 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:51,911 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:51,912 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 53 [2021-03-25 08:03:51,912 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:51,933 INFO L129 PetriNetUnfolder]: 33/70 cut-off events. [2021-03-25 08:03:51,933 INFO L130 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2021-03-25 08:03:51,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 70 events. 33/70 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 173 event pairs, 0 based on Foata normal form. 5/75 useless extension candidates. Maximal degree in co-relation 75. Up to 20 conditions per place. [2021-03-25 08:03:51,934 INFO L132 encePairwiseOnDemand]: 50/53 looper letters, 3 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2021-03-25 08:03:51,935 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 34 transitions, 160 flow [2021-03-25 08:03:51,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 08:03:51,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 08:03:51,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 147 transitions. [2021-03-25 08:03:51,942 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9245283018867925 [2021-03-25 08:03:51,942 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 147 transitions. [2021-03-25 08:03:51,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 147 transitions. [2021-03-25 08:03:51,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:51,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 147 transitions. [2021-03-25 08:03:51,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:51,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:51,949 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:51,950 INFO L185 Difference]: Start difference. First operand has 32 places, 36 transitions, 162 flow. Second operand 3 states and 147 transitions. [2021-03-25 08:03:51,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 34 transitions, 160 flow [2021-03-25 08:03:51,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 34 transitions, 104 flow, removed 0 selfloop flow, removed 10 redundant places. [2021-03-25 08:03:51,955 INFO L241 Difference]: Finished difference. Result has 24 places, 34 transitions, 98 flow [2021-03-25 08:03:51,956 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=24, PETRI_TRANSITIONS=34} [2021-03-25 08:03:51,956 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, -8 predicate places. [2021-03-25 08:03:51,956 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:51,956 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 34 transitions, 98 flow [2021-03-25 08:03:51,957 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 34 transitions, 98 flow [2021-03-25 08:03:51,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 34 transitions, 98 flow [2021-03-25 08:03:51,962 INFO L129 PetriNetUnfolder]: 33/70 cut-off events. [2021-03-25 08:03:51,962 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 08:03:51,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 70 events. 33/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 167 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 69. Up to 20 conditions per place. [2021-03-25 08:03:51,963 INFO L142 LiptonReduction]: Number of co-enabled transitions 184 [2021-03-25 08:03:51,964 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:51,964 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:51,965 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 08:03:51,965 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 34 transitions, 98 flow [2021-03-25 08:03:51,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:51,966 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:51,966 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:51,966 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 08:03:51,966 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:51,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:51,966 INFO L82 PathProgramCache]: Analyzing trace with hash 168192128, now seen corresponding path program 1 times [2021-03-25 08:03:51,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:51,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976136390] [2021-03-25 08:03:51,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:51,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:51,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:51,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:51,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:03:51,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:51,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:51,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:51,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976136390] [2021-03-25 08:03:51,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:51,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 08:03:51,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895037424] [2021-03-25 08:03:51,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 08:03:51,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:51,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 08:03:51,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 08:03:51,986 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 53 [2021-03-25 08:03:51,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 34 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:51,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:51,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 53 [2021-03-25 08:03:51,986 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:51,993 INFO L129 PetriNetUnfolder]: 8/31 cut-off events. [2021-03-25 08:03:51,993 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-25 08:03:51,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 31 events. 8/31 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 11/42 useless extension candidates. Maximal degree in co-relation 32. Up to 6 conditions per place. [2021-03-25 08:03:51,994 INFO L132 encePairwiseOnDemand]: 48/53 looper letters, 1 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2021-03-25 08:03:51,994 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 26 transitions, 78 flow [2021-03-25 08:03:51,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 08:03:51,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 08:03:51,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 147 transitions. [2021-03-25 08:03:51,995 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9245283018867925 [2021-03-25 08:03:51,995 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 147 transitions. [2021-03-25 08:03:51,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 147 transitions. [2021-03-25 08:03:51,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:51,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 147 transitions. [2021-03-25 08:03:51,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:51,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:51,998 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:51,998 INFO L185 Difference]: Start difference. First operand has 24 places, 34 transitions, 98 flow. Second operand 3 states and 147 transitions. [2021-03-25 08:03:51,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 26 transitions, 78 flow [2021-03-25 08:03:51,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 26 transitions, 77 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 08:03:51,999 INFO L241 Difference]: Finished difference. Result has 25 places, 26 transitions, 75 flow [2021-03-25 08:03:51,999 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=25, PETRI_TRANSITIONS=26} [2021-03-25 08:03:51,999 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, -7 predicate places. [2021-03-25 08:03:51,999 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:51,999 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 26 transitions, 75 flow [2021-03-25 08:03:52,000 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 26 transitions, 75 flow [2021-03-25 08:03:52,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 26 transitions, 75 flow [2021-03-25 08:03:52,016 INFO L129 PetriNetUnfolder]: 8/31 cut-off events. [2021-03-25 08:03:52,016 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 08:03:52,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 31 events. 8/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 31. Up to 6 conditions per place. [2021-03-25 08:03:52,017 INFO L142 LiptonReduction]: Number of co-enabled transitions 116 [2021-03-25 08:03:52,018 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:52,018 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:52,018 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-25 08:03:52,019 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 26 transitions, 75 flow [2021-03-25 08:03:52,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,019 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:52,019 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:52,019 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 08:03:52,019 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:52,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:52,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1394564792, now seen corresponding path program 1 times [2021-03-25 08:03:52,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:52,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395067995] [2021-03-25 08:03:52,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:52,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:52,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:52,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:52,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:03:52,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:52,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:52,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:52,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395067995] [2021-03-25 08:03:52,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:52,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 08:03:52,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679449766] [2021-03-25 08:03:52,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 08:03:52,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:52,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 08:03:52,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 08:03:52,049 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 53 [2021-03-25 08:03:52,049 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 26 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,049 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:52,049 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 53 [2021-03-25 08:03:52,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:52,063 INFO L129 PetriNetUnfolder]: 6/28 cut-off events. [2021-03-25 08:03:52,063 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-25 08:03:52,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 28 events. 6/28 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 1/29 useless extension candidates. Maximal degree in co-relation 32. Up to 6 conditions per place. [2021-03-25 08:03:52,064 INFO L132 encePairwiseOnDemand]: 51/53 looper letters, 3 selfloop transitions, 1 changer transitions 0/25 dead transitions. [2021-03-25 08:03:52,064 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 25 transitions, 80 flow [2021-03-25 08:03:52,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 08:03:52,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 08:03:52,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 146 transitions. [2021-03-25 08:03:52,065 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9182389937106918 [2021-03-25 08:03:52,065 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 146 transitions. [2021-03-25 08:03:52,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 146 transitions. [2021-03-25 08:03:52,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:52,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 146 transitions. [2021-03-25 08:03:52,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,067 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,067 INFO L185 Difference]: Start difference. First operand has 25 places, 26 transitions, 75 flow. Second operand 3 states and 146 transitions. [2021-03-25 08:03:52,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 25 transitions, 80 flow [2021-03-25 08:03:52,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 25 transitions, 79 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 08:03:52,068 INFO L241 Difference]: Finished difference. Result has 26 places, 25 transitions, 73 flow [2021-03-25 08:03:52,068 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=26, PETRI_TRANSITIONS=25} [2021-03-25 08:03:52,068 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, -6 predicate places. [2021-03-25 08:03:52,068 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:52,068 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 25 transitions, 73 flow [2021-03-25 08:03:52,069 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 25 transitions, 73 flow [2021-03-25 08:03:52,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 25 transitions, 73 flow [2021-03-25 08:03:52,071 INFO L129 PetriNetUnfolder]: 6/28 cut-off events. [2021-03-25 08:03:52,071 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 08:03:52,071 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 28 events. 6/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 31. Up to 6 conditions per place. [2021-03-25 08:03:52,071 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-25 08:03:52,072 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:52,072 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:52,072 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-03-25 08:03:52,073 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 25 transitions, 73 flow [2021-03-25 08:03:52,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,073 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:52,073 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:52,073 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 08:03:52,073 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:52,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:52,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1076427874, now seen corresponding path program 1 times [2021-03-25 08:03:52,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:52,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829213246] [2021-03-25 08:03:52,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:52,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:52,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:52,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:52,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:03:52,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:52,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:52,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:52,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829213246] [2021-03-25 08:03:52,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:52,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 08:03:52,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433195613] [2021-03-25 08:03:52,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 08:03:52,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:52,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 08:03:52,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 08:03:52,116 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 53 [2021-03-25 08:03:52,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 25 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:52,117 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 53 [2021-03-25 08:03:52,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:52,121 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-25 08:03:52,121 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 08:03:52,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 16 events. 0/16 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 7 event pairs, 0 based on Foata normal form. 3/19 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 08:03:52,122 INFO L132 encePairwiseOnDemand]: 49/53 looper letters, 1 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2021-03-25 08:03:52,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 16 transitions, 50 flow [2021-03-25 08:03:52,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 08:03:52,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 08:03:52,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 146 transitions. [2021-03-25 08:03:52,123 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9182389937106918 [2021-03-25 08:03:52,123 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 146 transitions. [2021-03-25 08:03:52,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 146 transitions. [2021-03-25 08:03:52,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:52,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 146 transitions. [2021-03-25 08:03:52,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,125 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,125 INFO L185 Difference]: Start difference. First operand has 26 places, 25 transitions, 73 flow. Second operand 3 states and 146 transitions. [2021-03-25 08:03:52,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 16 transitions, 50 flow [2021-03-25 08:03:52,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 49 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 08:03:52,126 INFO L241 Difference]: Finished difference. Result has 27 places, 16 transitions, 47 flow [2021-03-25 08:03:52,126 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=27, PETRI_TRANSITIONS=16} [2021-03-25 08:03:52,126 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, -5 predicate places. [2021-03-25 08:03:52,126 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:52,126 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 16 transitions, 47 flow [2021-03-25 08:03:52,126 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 16 transitions, 47 flow [2021-03-25 08:03:52,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 16 transitions, 47 flow [2021-03-25 08:03:52,128 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-25 08:03:52,128 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 08:03:52,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 16 events. 0/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-25 08:03:52,128 INFO L142 LiptonReduction]: Number of co-enabled transitions 60 [2021-03-25 08:03:52,129 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:52,129 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:52,129 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-03-25 08:03:52,130 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 16 transitions, 47 flow [2021-03-25 08:03:52,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,130 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:52,130 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:52,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 08:03:52,130 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:52,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:52,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1201939170, now seen corresponding path program 1 times [2021-03-25 08:03:52,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:52,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853818150] [2021-03-25 08:03:52,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:52,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:52,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:52,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:52,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:52,239 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:03:52,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:03:52,251 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:52,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:52,279 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:52,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:52,323 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:52,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:52,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:52,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853818150] [2021-03-25 08:03:52,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:52,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:52,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454743733] [2021-03-25 08:03:52,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:52,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:52,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:52,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:52,344 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:52,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 16 transitions, 47 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:52,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:52,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:52,411 INFO L129 PetriNetUnfolder]: 51/136 cut-off events. [2021-03-25 08:03:52,411 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 08:03:52,412 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 136 events. 51/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 552 event pairs, 17 based on Foata normal form. 1/123 useless extension candidates. Maximal degree in co-relation 241. Up to 41 conditions per place. [2021-03-25 08:03:52,412 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 14 selfloop transitions, 4 changer transitions 1/29 dead transitions. [2021-03-25 08:03:52,412 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 111 flow [2021-03-25 08:03:52,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:52,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:52,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:52,414 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:52,414 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:52,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:52,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:52,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:52,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,417 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,417 INFO L185 Difference]: Start difference. First operand has 27 places, 16 transitions, 47 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:52,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 111 flow [2021-03-25 08:03:52,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 29 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 08:03:52,418 INFO L241 Difference]: Finished difference. Result has 37 places, 19 transitions, 77 flow [2021-03-25 08:03:52,418 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=77, PETRI_PLACES=37, PETRI_TRANSITIONS=19} [2021-03-25 08:03:52,418 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 5 predicate places. [2021-03-25 08:03:52,419 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:52,419 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 19 transitions, 77 flow [2021-03-25 08:03:52,419 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 19 transitions, 77 flow [2021-03-25 08:03:52,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 19 transitions, 77 flow [2021-03-25 08:03:52,422 INFO L129 PetriNetUnfolder]: 0/39 cut-off events. [2021-03-25 08:03:52,422 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-25 08:03:52,422 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 39 events. 0/39 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 97 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-25 08:03:52,422 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-25 08:03:52,423 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:52,423 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:52,423 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-03-25 08:03:52,424 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 19 transitions, 77 flow [2021-03-25 08:03:52,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,424 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:52,424 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:52,424 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 08:03:52,424 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:52,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:52,425 INFO L82 PathProgramCache]: Analyzing trace with hash -153380320, now seen corresponding path program 2 times [2021-03-25 08:03:52,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:52,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947356097] [2021-03-25 08:03:52,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:52,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:52,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:52,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:52,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:52,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:52,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:52,485 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:52,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:52,503 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:03:52,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:03:52,525 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:52,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:52,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:52,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947356097] [2021-03-25 08:03:52,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:52,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:52,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102666868] [2021-03-25 08:03:52,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:52,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:52,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:52,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:52,550 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:52,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 19 transitions, 77 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,551 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:52,551 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:52,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:52,624 INFO L129 PetriNetUnfolder]: 53/184 cut-off events. [2021-03-25 08:03:52,624 INFO L130 PetriNetUnfolder]: For 163/163 co-relation queries the response was YES. [2021-03-25 08:03:52,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 184 events. 53/184 cut-off events. For 163/163 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 972 event pairs, 17 based on Foata normal form. 1/171 useless extension candidates. Maximal degree in co-relation 442. Up to 50 conditions per place. [2021-03-25 08:03:52,630 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 14 selfloop transitions, 7 changer transitions 1/32 dead transitions. [2021-03-25 08:03:52,630 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 32 transitions, 177 flow [2021-03-25 08:03:52,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:52,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:52,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:52,633 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:52,634 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:52,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:52,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:52,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:52,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,640 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,641 INFO L185 Difference]: Start difference. First operand has 36 places, 19 transitions, 77 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:52,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 32 transitions, 177 flow [2021-03-25 08:03:52,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 32 transitions, 164 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-03-25 08:03:52,642 INFO L241 Difference]: Finished difference. Result has 45 places, 22 transitions, 122 flow [2021-03-25 08:03:52,642 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=122, PETRI_PLACES=45, PETRI_TRANSITIONS=22} [2021-03-25 08:03:52,642 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 13 predicate places. [2021-03-25 08:03:52,642 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:52,643 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 22 transitions, 122 flow [2021-03-25 08:03:52,643 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 22 transitions, 122 flow [2021-03-25 08:03:52,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 22 transitions, 122 flow [2021-03-25 08:03:52,648 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-03-25 08:03:52,648 INFO L130 PetriNetUnfolder]: For 56/63 co-relation queries the response was YES. [2021-03-25 08:03:52,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 66 events. 0/66 cut-off events. For 56/63 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 292 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-03-25 08:03:52,649 INFO L142 LiptonReduction]: Number of co-enabled transitions 88 [2021-03-25 08:03:52,650 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:52,650 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:52,650 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 08:03:52,651 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 22 transitions, 122 flow [2021-03-25 08:03:52,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,655 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:52,655 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:52,655 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 08:03:52,655 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:52,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:52,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1999782006, now seen corresponding path program 3 times [2021-03-25 08:03:52,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:52,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518860096] [2021-03-25 08:03:52,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:52,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:52,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:52,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:52,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:52,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:52,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:52,736 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:03:52,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:03:52,755 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:03:52,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:03:52,779 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:52,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:52,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:52,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518860096] [2021-03-25 08:03:52,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:52,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:52,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830112667] [2021-03-25 08:03:52,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:52,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:52,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:52,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:52,804 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:52,804 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 22 transitions, 122 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,804 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:52,805 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:52,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:52,880 INFO L129 PetriNetUnfolder]: 50/258 cut-off events. [2021-03-25 08:03:52,880 INFO L130 PetriNetUnfolder]: For 502/518 co-relation queries the response was YES. [2021-03-25 08:03:52,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 760 conditions, 258 events. 50/258 cut-off events. For 502/518 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1768 event pairs, 15 based on Foata normal form. 1/246 useless extension candidates. Maximal degree in co-relation 743. Up to 67 conditions per place. [2021-03-25 08:03:52,882 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 22 selfloop transitions, 9 changer transitions 3/44 dead transitions. [2021-03-25 08:03:52,882 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 44 transitions, 346 flow [2021-03-25 08:03:52,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:52,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:52,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:52,883 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:52,883 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:52,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:52,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:52,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:52,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,886 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,886 INFO L185 Difference]: Start difference. First operand has 44 places, 22 transitions, 122 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:52,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 44 transitions, 346 flow [2021-03-25 08:03:52,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 44 transitions, 318 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-03-25 08:03:52,892 INFO L241 Difference]: Finished difference. Result has 53 places, 29 transitions, 218 flow [2021-03-25 08:03:52,892 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=218, PETRI_PLACES=53, PETRI_TRANSITIONS=29} [2021-03-25 08:03:52,892 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 21 predicate places. [2021-03-25 08:03:52,892 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:52,892 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 29 transitions, 218 flow [2021-03-25 08:03:52,892 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 29 transitions, 218 flow [2021-03-25 08:03:52,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 29 transitions, 218 flow [2021-03-25 08:03:52,910 INFO L129 PetriNetUnfolder]: 0/138 cut-off events. [2021-03-25 08:03:52,910 INFO L130 PetriNetUnfolder]: For 219/224 co-relation queries the response was YES. [2021-03-25 08:03:52,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 138 events. 0/138 cut-off events. For 219/224 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 940 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2021-03-25 08:03:52,913 INFO L142 LiptonReduction]: Number of co-enabled transitions 114 [2021-03-25 08:03:52,914 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:52,914 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:52,914 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-25 08:03:52,917 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 29 transitions, 218 flow [2021-03-25 08:03:52,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:52,920 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:52,920 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:52,920 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 08:03:52,920 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:52,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:52,924 INFO L82 PathProgramCache]: Analyzing trace with hash -2138499552, now seen corresponding path program 4 times [2021-03-25 08:03:52,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:52,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955971440] [2021-03-25 08:03:52,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:52,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:52,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:52,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:52,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:52,983 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:03:52,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:03:52,993 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:52,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:53,007 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:03:53,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:03:53,029 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:53,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:53,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:53,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955971440] [2021-03-25 08:03:53,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:53,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:53,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473759861] [2021-03-25 08:03:53,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:53,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:53,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:53,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:53,049 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:53,049 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 29 transitions, 218 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,049 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:53,049 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:53,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:53,107 INFO L129 PetriNetUnfolder]: 50/294 cut-off events. [2021-03-25 08:03:53,108 INFO L130 PetriNetUnfolder]: For 838/845 co-relation queries the response was YES. [2021-03-25 08:03:53,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 949 conditions, 294 events. 50/294 cut-off events. For 838/845 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2291 event pairs, 15 based on Foata normal form. 1/277 useless extension candidates. Maximal degree in co-relation 928. Up to 78 conditions per place. [2021-03-25 08:03:53,109 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 23 selfloop transitions, 15 changer transitions 1/49 dead transitions. [2021-03-25 08:03:53,109 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 49 transitions, 459 flow [2021-03-25 08:03:53,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:53,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:53,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:53,111 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:53,111 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:53,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,112 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,112 INFO L185 Difference]: Start difference. First operand has 52 places, 29 transitions, 218 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:53,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 49 transitions, 459 flow [2021-03-25 08:03:53,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 49 transitions, 435 flow, removed 9 selfloop flow, removed 3 redundant places. [2021-03-25 08:03:53,123 INFO L241 Difference]: Finished difference. Result has 60 places, 38 transitions, 373 flow [2021-03-25 08:03:53,123 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=373, PETRI_PLACES=60, PETRI_TRANSITIONS=38} [2021-03-25 08:03:53,123 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 28 predicate places. [2021-03-25 08:03:53,123 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:53,123 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 38 transitions, 373 flow [2021-03-25 08:03:53,123 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 38 transitions, 373 flow [2021-03-25 08:03:53,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 38 transitions, 373 flow [2021-03-25 08:03:53,133 INFO L129 PetriNetUnfolder]: 0/169 cut-off events. [2021-03-25 08:03:53,133 INFO L130 PetriNetUnfolder]: For 569/618 co-relation queries the response was YES. [2021-03-25 08:03:53,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 169 events. 0/169 cut-off events. For 569/618 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1264 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 0. Up to 22 conditions per place. [2021-03-25 08:03:53,134 INFO L142 LiptonReduction]: Number of co-enabled transitions 154 [2021-03-25 08:03:53,136 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:53,136 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:53,136 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-25 08:03:53,136 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 38 transitions, 373 flow [2021-03-25 08:03:53,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,136 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:53,136 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:53,136 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 08:03:53,137 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:53,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:53,137 INFO L82 PathProgramCache]: Analyzing trace with hash -46258848, now seen corresponding path program 5 times [2021-03-25 08:03:53,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:53,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752301974] [2021-03-25 08:03:53,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:53,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:53,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:53,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:53,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:53,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:53,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:53,164 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:03:53,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:03:53,182 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:53,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:53,197 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:53,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:53,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:53,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752301974] [2021-03-25 08:03:53,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:53,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:53,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964885605] [2021-03-25 08:03:53,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:53,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:53,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:53,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:53,213 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:53,213 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 38 transitions, 373 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:53,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:53,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:53,279 INFO L129 PetriNetUnfolder]: 47/316 cut-off events. [2021-03-25 08:03:53,279 INFO L130 PetriNetUnfolder]: For 1299/1316 co-relation queries the response was YES. [2021-03-25 08:03:53,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1128 conditions, 316 events. 47/316 cut-off events. For 1299/1316 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2501 event pairs, 20 based on Foata normal form. 1/303 useless extension candidates. Maximal degree in co-relation 1104. Up to 76 conditions per place. [2021-03-25 08:03:53,281 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 22 selfloop transitions, 20 changer transitions 1/53 dead transitions. [2021-03-25 08:03:53,281 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 53 transitions, 580 flow [2021-03-25 08:03:53,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:53,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:53,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:53,282 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:53,282 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:53,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,284 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,284 INFO L185 Difference]: Start difference. First operand has 59 places, 38 transitions, 373 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:53,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 53 transitions, 580 flow [2021-03-25 08:03:53,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 53 transitions, 555 flow, removed 7 selfloop flow, removed 2 redundant places. [2021-03-25 08:03:53,287 INFO L241 Difference]: Finished difference. Result has 68 places, 42 transitions, 477 flow [2021-03-25 08:03:53,288 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=477, PETRI_PLACES=68, PETRI_TRANSITIONS=42} [2021-03-25 08:03:53,288 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 36 predicate places. [2021-03-25 08:03:53,288 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:53,288 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 42 transitions, 477 flow [2021-03-25 08:03:53,288 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 42 transitions, 477 flow [2021-03-25 08:03:53,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 42 transitions, 477 flow [2021-03-25 08:03:53,299 INFO L129 PetriNetUnfolder]: 0/189 cut-off events. [2021-03-25 08:03:53,299 INFO L130 PetriNetUnfolder]: For 931/1072 co-relation queries the response was YES. [2021-03-25 08:03:53,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 582 conditions, 189 events. 0/189 cut-off events. For 931/1072 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1490 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 0. Up to 25 conditions per place. [2021-03-25 08:03:53,300 INFO L142 LiptonReduction]: Number of co-enabled transitions 176 [2021-03-25 08:03:53,302 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:53,302 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:53,302 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-25 08:03:53,303 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 42 transitions, 477 flow [2021-03-25 08:03:53,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,303 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:53,303 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:53,303 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 08:03:53,303 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:53,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:53,303 INFO L82 PathProgramCache]: Analyzing trace with hash -254727096, now seen corresponding path program 6 times [2021-03-25 08:03:53,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:53,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692808810] [2021-03-25 08:03:53,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:53,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:53,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:53,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:53,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:53,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:53,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:53,328 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:03:53,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:03:53,339 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:03:53,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:03:53,355 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:53,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:53,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:53,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692808810] [2021-03-25 08:03:53,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:53,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:53,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140978282] [2021-03-25 08:03:53,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:53,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:53,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:53,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:53,370 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:53,370 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 42 transitions, 477 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,370 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:53,371 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:53,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:53,430 INFO L129 PetriNetUnfolder]: 41/351 cut-off events. [2021-03-25 08:03:53,430 INFO L130 PetriNetUnfolder]: For 1894/1908 co-relation queries the response was YES. [2021-03-25 08:03:53,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1366 conditions, 351 events. 41/351 cut-off events. For 1894/1908 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3021 event pairs, 21 based on Foata normal form. 3/339 useless extension candidates. Maximal degree in co-relation 1338. Up to 74 conditions per place. [2021-03-25 08:03:53,432 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 28 selfloop transitions, 20 changer transitions 3/61 dead transitions. [2021-03-25 08:03:53,432 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 61 transitions, 789 flow [2021-03-25 08:03:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:53,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:53,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:53,434 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:53,434 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:53,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,435 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,435 INFO L185 Difference]: Start difference. First operand has 67 places, 42 transitions, 477 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:53,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 61 transitions, 789 flow [2021-03-25 08:03:53,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 61 transitions, 745 flow, removed 16 selfloop flow, removed 2 redundant places. [2021-03-25 08:03:53,440 INFO L241 Difference]: Finished difference. Result has 76 places, 46 transitions, 579 flow [2021-03-25 08:03:53,440 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=579, PETRI_PLACES=76, PETRI_TRANSITIONS=46} [2021-03-25 08:03:53,440 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 44 predicate places. [2021-03-25 08:03:53,440 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:53,441 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 46 transitions, 579 flow [2021-03-25 08:03:53,441 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 46 transitions, 579 flow [2021-03-25 08:03:53,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 46 transitions, 579 flow [2021-03-25 08:03:53,455 INFO L129 PetriNetUnfolder]: 0/232 cut-off events. [2021-03-25 08:03:53,455 INFO L130 PetriNetUnfolder]: For 1475/1619 co-relation queries the response was YES. [2021-03-25 08:03:53,455 INFO L84 FinitePrefix]: Finished finitePrefix Result has 760 conditions, 232 events. 0/232 cut-off events. For 1475/1619 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1995 event pairs, 0 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 0. Up to 31 conditions per place. [2021-03-25 08:03:53,456 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-25 08:03:53,459 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:53,459 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:53,459 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-25 08:03:53,459 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 46 transitions, 579 flow [2021-03-25 08:03:53,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,459 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:53,460 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:53,460 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 08:03:53,460 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:53,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:53,460 INFO L82 PathProgramCache]: Analyzing trace with hash 421796960, now seen corresponding path program 7 times [2021-03-25 08:03:53,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:53,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878947694] [2021-03-25 08:03:53,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:53,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:53,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:53,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:53,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:53,477 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:03:53,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:03:53,484 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:03:53,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:03:53,495 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:03:53,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:03:53,511 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:53,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:53,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:53,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878947694] [2021-03-25 08:03:53,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:53,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:53,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989305342] [2021-03-25 08:03:53,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:53,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:53,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:53,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:53,527 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:53,527 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 46 transitions, 579 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,527 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:53,527 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:53,527 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:53,583 INFO L129 PetriNetUnfolder]: 41/349 cut-off events. [2021-03-25 08:03:53,584 INFO L130 PetriNetUnfolder]: For 2302/2368 co-relation queries the response was YES. [2021-03-25 08:03:53,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 349 events. 41/349 cut-off events. For 2302/2368 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2975 event pairs, 17 based on Foata normal form. 8/340 useless extension candidates. Maximal degree in co-relation 1403. Up to 77 conditions per place. [2021-03-25 08:03:53,586 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 25 selfloop transitions, 24 changer transitions 3/62 dead transitions. [2021-03-25 08:03:53,586 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 62 transitions, 861 flow [2021-03-25 08:03:53,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:53,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:53,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:53,587 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:53,587 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:53,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,588 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,588 INFO L185 Difference]: Start difference. First operand has 75 places, 46 transitions, 579 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:53,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 62 transitions, 861 flow [2021-03-25 08:03:53,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 62 transitions, 816 flow, removed 15 selfloop flow, removed 4 redundant places. [2021-03-25 08:03:53,595 INFO L241 Difference]: Finished difference. Result has 82 places, 50 transitions, 702 flow [2021-03-25 08:03:53,595 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=702, PETRI_PLACES=82, PETRI_TRANSITIONS=50} [2021-03-25 08:03:53,595 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 50 predicate places. [2021-03-25 08:03:53,595 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:53,595 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 50 transitions, 702 flow [2021-03-25 08:03:53,595 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 50 transitions, 702 flow [2021-03-25 08:03:53,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 50 transitions, 702 flow [2021-03-25 08:03:53,609 INFO L129 PetriNetUnfolder]: 0/227 cut-off events. [2021-03-25 08:03:53,609 INFO L130 PetriNetUnfolder]: For 1612/1702 co-relation queries the response was YES. [2021-03-25 08:03:53,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 227 events. 0/227 cut-off events. For 1612/1702 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1931 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 0. Up to 30 conditions per place. [2021-03-25 08:03:53,610 INFO L142 LiptonReduction]: Number of co-enabled transitions 224 [2021-03-25 08:03:53,613 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:53,613 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:53,613 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-25 08:03:53,614 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 50 transitions, 702 flow [2021-03-25 08:03:53,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,614 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:53,614 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:53,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 08:03:53,614 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:53,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:53,614 INFO L82 PathProgramCache]: Analyzing trace with hash -256403714, now seen corresponding path program 8 times [2021-03-25 08:03:53,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:53,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121683409] [2021-03-25 08:03:53,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:53,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:53,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:53,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:53,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:53,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:53,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:53,636 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:53,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:53,647 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:53,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:53,661 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:53,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:53,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:53,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121683409] [2021-03-25 08:03:53,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:53,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:53,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934117416] [2021-03-25 08:03:53,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:53,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:53,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:53,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:53,676 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:53,676 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 50 transitions, 702 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,676 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:53,676 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:53,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:53,766 INFO L129 PetriNetUnfolder]: 34/416 cut-off events. [2021-03-25 08:03:53,766 INFO L130 PetriNetUnfolder]: For 3453/3485 co-relation queries the response was YES. [2021-03-25 08:03:53,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1864 conditions, 416 events. 34/416 cut-off events. For 3453/3485 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3811 event pairs, 6 based on Foata normal form. 1/397 useless extension candidates. Maximal degree in co-relation 1830. Up to 115 conditions per place. [2021-03-25 08:03:53,768 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 55 selfloop transitions, 24 changer transitions 4/93 dead transitions. [2021-03-25 08:03:53,768 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 93 transitions, 1556 flow [2021-03-25 08:03:53,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:53,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:53,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:53,769 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:53,769 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:53,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,771 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,771 INFO L185 Difference]: Start difference. First operand has 81 places, 50 transitions, 702 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:53,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 93 transitions, 1556 flow [2021-03-25 08:03:53,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 93 transitions, 1498 flow, removed 18 selfloop flow, removed 3 redundant places. [2021-03-25 08:03:53,780 INFO L241 Difference]: Finished difference. Result has 89 places, 66 transitions, 1081 flow [2021-03-25 08:03:53,780 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1081, PETRI_PLACES=89, PETRI_TRANSITIONS=66} [2021-03-25 08:03:53,780 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 57 predicate places. [2021-03-25 08:03:53,780 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:53,780 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 66 transitions, 1081 flow [2021-03-25 08:03:53,780 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 66 transitions, 1081 flow [2021-03-25 08:03:53,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 66 transitions, 1081 flow [2021-03-25 08:03:53,802 INFO L129 PetriNetUnfolder]: 0/345 cut-off events. [2021-03-25 08:03:53,802 INFO L130 PetriNetUnfolder]: For 2900/2972 co-relation queries the response was YES. [2021-03-25 08:03:53,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1287 conditions, 345 events. 0/345 cut-off events. For 2900/2972 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3336 event pairs, 0 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 0. Up to 44 conditions per place. [2021-03-25 08:03:53,804 INFO L142 LiptonReduction]: Number of co-enabled transitions 230 [2021-03-25 08:03:53,808 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:53,808 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:53,808 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-03-25 08:03:53,809 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 66 transitions, 1081 flow [2021-03-25 08:03:53,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,809 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:53,809 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:53,809 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 08:03:53,809 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:53,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:53,809 INFO L82 PathProgramCache]: Analyzing trace with hash 41398628, now seen corresponding path program 9 times [2021-03-25 08:03:53,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:53,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535402260] [2021-03-25 08:03:53,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:53,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:53,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:53,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:53,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:53,826 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:03:53,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:03:53,834 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:03:53,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:03:53,845 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:53,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:53,860 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:53,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:53,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:53,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535402260] [2021-03-25 08:03:53,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:53,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:53,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242637490] [2021-03-25 08:03:53,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:53,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:53,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:53,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:53,876 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:53,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 66 transitions, 1081 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:53,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:53,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:53,968 INFO L129 PetriNetUnfolder]: 33/436 cut-off events. [2021-03-25 08:03:53,968 INFO L130 PetriNetUnfolder]: For 3835/3931 co-relation queries the response was YES. [2021-03-25 08:03:53,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1945 conditions, 436 events. 33/436 cut-off events. For 3835/3931 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4136 event pairs, 21 based on Foata normal form. 8/426 useless extension candidates. Maximal degree in co-relation 1908. Up to 94 conditions per place. [2021-03-25 08:03:53,970 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 24 selfloop transitions, 40 changer transitions 3/77 dead transitions. [2021-03-25 08:03:53,970 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 77 transitions, 1341 flow [2021-03-25 08:03:53,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:53,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:53,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:53,971 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:53,971 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:53,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:53,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,973 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:53,973 INFO L185 Difference]: Start difference. First operand has 88 places, 66 transitions, 1081 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:53,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 77 transitions, 1341 flow [2021-03-25 08:03:53,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 77 transitions, 1310 flow, removed 11 selfloop flow, removed 3 redundant places. [2021-03-25 08:03:53,983 INFO L241 Difference]: Finished difference. Result has 94 places, 67 transitions, 1170 flow [2021-03-25 08:03:53,984 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1063, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1170, PETRI_PLACES=94, PETRI_TRANSITIONS=67} [2021-03-25 08:03:53,984 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 62 predicate places. [2021-03-25 08:03:53,984 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:53,984 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 67 transitions, 1170 flow [2021-03-25 08:03:53,984 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 67 transitions, 1170 flow [2021-03-25 08:03:53,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 67 transitions, 1170 flow [2021-03-25 08:03:54,007 INFO L129 PetriNetUnfolder]: 0/347 cut-off events. [2021-03-25 08:03:54,007 INFO L130 PetriNetUnfolder]: For 3388/3464 co-relation queries the response was YES. [2021-03-25 08:03:54,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1364 conditions, 347 events. 0/347 cut-off events. For 3388/3464 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3365 event pairs, 0 based on Foata normal form. 1/337 useless extension candidates. Maximal degree in co-relation 0. Up to 44 conditions per place. [2021-03-25 08:03:54,009 INFO L142 LiptonReduction]: Number of co-enabled transitions 236 [2021-03-25 08:03:54,014 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:54,014 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:54,014 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-03-25 08:03:54,014 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 67 transitions, 1170 flow [2021-03-25 08:03:54,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,015 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:54,015 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:54,015 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 08:03:54,015 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:54,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:54,015 INFO L82 PathProgramCache]: Analyzing trace with hash 289139752, now seen corresponding path program 10 times [2021-03-25 08:03:54,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:54,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668409347] [2021-03-25 08:03:54,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:54,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:54,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:54,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:54,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:54,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:54,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:54,036 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:54,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:54,046 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:54,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:54,061 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:54,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:54,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:54,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668409347] [2021-03-25 08:03:54,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:54,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:54,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116226137] [2021-03-25 08:03:54,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:54,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:54,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:54,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:54,077 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:54,077 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 67 transitions, 1170 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,077 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:54,077 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:54,077 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:54,163 INFO L129 PetriNetUnfolder]: 24/467 cut-off events. [2021-03-25 08:03:54,163 INFO L130 PetriNetUnfolder]: For 4467/4568 co-relation queries the response was YES. [2021-03-25 08:03:54,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2149 conditions, 467 events. 24/467 cut-off events. For 4467/4568 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4645 event pairs, 19 based on Foata normal form. 8/455 useless extension candidates. Maximal degree in co-relation 2111. Up to 95 conditions per place. [2021-03-25 08:03:54,166 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 49 selfloop transitions, 31 changer transitions 4/94 dead transitions. [2021-03-25 08:03:54,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 94 transitions, 1785 flow [2021-03-25 08:03:54,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:54,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:54,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:54,167 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:54,167 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:54,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:54,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:54,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:54,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,168 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,168 INFO L185 Difference]: Start difference. First operand has 93 places, 67 transitions, 1170 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:54,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 94 transitions, 1785 flow [2021-03-25 08:03:54,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 94 transitions, 1671 flow, removed 9 selfloop flow, removed 6 redundant places. [2021-03-25 08:03:54,181 INFO L241 Difference]: Finished difference. Result has 98 places, 76 transitions, 1369 flow [2021-03-25 08:03:54,181 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1086, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1369, PETRI_PLACES=98, PETRI_TRANSITIONS=76} [2021-03-25 08:03:54,181 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 66 predicate places. [2021-03-25 08:03:54,181 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:54,181 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 76 transitions, 1369 flow [2021-03-25 08:03:54,181 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 76 transitions, 1369 flow [2021-03-25 08:03:54,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 76 transitions, 1369 flow [2021-03-25 08:03:54,208 INFO L129 PetriNetUnfolder]: 0/416 cut-off events. [2021-03-25 08:03:54,209 INFO L130 PetriNetUnfolder]: For 4390/4472 co-relation queries the response was YES. [2021-03-25 08:03:54,209 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1661 conditions, 416 events. 0/416 cut-off events. For 4390/4472 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4283 event pairs, 0 based on Foata normal form. 2/406 useless extension candidates. Maximal degree in co-relation 0. Up to 53 conditions per place. [2021-03-25 08:03:54,211 INFO L142 LiptonReduction]: Number of co-enabled transitions 244 [2021-03-25 08:03:54,217 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:54,217 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:54,217 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-03-25 08:03:54,217 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 76 transitions, 1369 flow [2021-03-25 08:03:54,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,217 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:54,217 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:54,217 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 08:03:54,218 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:54,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:54,218 INFO L82 PathProgramCache]: Analyzing trace with hash -297195642, now seen corresponding path program 11 times [2021-03-25 08:03:54,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:54,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970149547] [2021-03-25 08:03:54,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:54,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:54,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:54,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:54,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:54,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:54,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:54,238 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:54,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:54,249 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:54,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:54,263 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:54,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:54,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:54,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970149547] [2021-03-25 08:03:54,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:54,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:54,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999405618] [2021-03-25 08:03:54,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:54,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:54,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:54,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:54,278 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:54,279 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 76 transitions, 1369 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,279 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:54,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:54,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:54,379 INFO L129 PetriNetUnfolder]: 21/485 cut-off events. [2021-03-25 08:03:54,379 INFO L130 PetriNetUnfolder]: For 4834/4970 co-relation queries the response was YES. [2021-03-25 08:03:54,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2264 conditions, 485 events. 21/485 cut-off events. For 4834/4970 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 4905 event pairs, 21 based on Foata normal form. 8/472 useless extension candidates. Maximal degree in co-relation 2224. Up to 95 conditions per place. [2021-03-25 08:03:54,382 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 45 selfloop transitions, 39 changer transitions 2/96 dead transitions. [2021-03-25 08:03:54,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 96 transitions, 1881 flow [2021-03-25 08:03:54,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:54,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:54,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:54,383 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:54,383 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:54,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:54,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:54,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:54,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,385 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,385 INFO L185 Difference]: Start difference. First operand has 97 places, 76 transitions, 1369 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:54,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 96 transitions, 1881 flow [2021-03-25 08:03:54,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 96 transitions, 1824 flow, removed 17 selfloop flow, removed 3 redundant places. [2021-03-25 08:03:54,400 INFO L241 Difference]: Finished difference. Result has 104 places, 87 transitions, 1663 flow [2021-03-25 08:03:54,400 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1327, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1663, PETRI_PLACES=104, PETRI_TRANSITIONS=87} [2021-03-25 08:03:54,401 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 72 predicate places. [2021-03-25 08:03:54,401 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:54,401 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 87 transitions, 1663 flow [2021-03-25 08:03:54,401 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 87 transitions, 1663 flow [2021-03-25 08:03:54,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 87 transitions, 1663 flow [2021-03-25 08:03:54,437 INFO L129 PetriNetUnfolder]: 0/441 cut-off events. [2021-03-25 08:03:54,437 INFO L130 PetriNetUnfolder]: For 5361/5436 co-relation queries the response was YES. [2021-03-25 08:03:54,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1888 conditions, 441 events. 0/441 cut-off events. For 5361/5436 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4612 event pairs, 0 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 0. Up to 56 conditions per place. [2021-03-25 08:03:54,440 INFO L142 LiptonReduction]: Number of co-enabled transitions 278 [2021-03-25 08:03:54,448 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:54,448 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:54,448 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-03-25 08:03:54,448 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 87 transitions, 1663 flow [2021-03-25 08:03:54,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,449 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:54,449 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:54,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 08:03:54,449 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:54,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:54,449 INFO L82 PathProgramCache]: Analyzing trace with hash 908333830, now seen corresponding path program 12 times [2021-03-25 08:03:54,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:54,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639688739] [2021-03-25 08:03:54,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:54,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:54,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:54,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:54,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:54,465 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:03:54,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:03:54,473 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:54,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:54,484 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:54,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:54,501 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:54,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:54,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:54,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639688739] [2021-03-25 08:03:54,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:54,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:54,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733120224] [2021-03-25 08:03:54,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:54,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:54,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:54,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:54,518 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:54,518 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 87 transitions, 1663 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,518 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:54,518 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:54,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:54,607 INFO L129 PetriNetUnfolder]: 21/479 cut-off events. [2021-03-25 08:03:54,607 INFO L130 PetriNetUnfolder]: For 5447/5594 co-relation queries the response was YES. [2021-03-25 08:03:54,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2349 conditions, 479 events. 21/479 cut-off events. For 5447/5594 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4815 event pairs, 21 based on Foata normal form. 11/472 useless extension candidates. Maximal degree in co-relation 2307. Up to 93 conditions per place. [2021-03-25 08:03:54,609 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 29 selfloop transitions, 56 changer transitions 4/99 dead transitions. [2021-03-25 08:03:54,609 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 99 transitions, 2039 flow [2021-03-25 08:03:54,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:54,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:54,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:54,610 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:54,610 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:54,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:54,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:54,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:54,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,612 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,612 INFO L185 Difference]: Start difference. First operand has 103 places, 87 transitions, 1663 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:54,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 99 transitions, 2039 flow [2021-03-25 08:03:54,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 99 transitions, 1937 flow, removed 23 selfloop flow, removed 5 redundant places. [2021-03-25 08:03:54,628 INFO L241 Difference]: Finished difference. Result has 107 places, 87 transitions, 1732 flow [2021-03-25 08:03:54,628 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1572, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1732, PETRI_PLACES=107, PETRI_TRANSITIONS=87} [2021-03-25 08:03:54,628 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 75 predicate places. [2021-03-25 08:03:54,628 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:54,628 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 87 transitions, 1732 flow [2021-03-25 08:03:54,629 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 87 transitions, 1732 flow [2021-03-25 08:03:54,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 87 transitions, 1732 flow [2021-03-25 08:03:54,656 INFO L129 PetriNetUnfolder]: 0/430 cut-off events. [2021-03-25 08:03:54,656 INFO L130 PetriNetUnfolder]: For 5419/5501 co-relation queries the response was YES. [2021-03-25 08:03:54,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1891 conditions, 430 events. 0/430 cut-off events. For 5419/5501 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4466 event pairs, 0 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 0. Up to 54 conditions per place. [2021-03-25 08:03:54,659 INFO L142 LiptonReduction]: Number of co-enabled transitions 274 [2021-03-25 08:03:54,666 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:54,666 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:54,666 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-03-25 08:03:54,667 INFO L480 AbstractCegarLoop]: Abstraction has has 105 places, 87 transitions, 1732 flow [2021-03-25 08:03:54,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,667 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:54,667 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:54,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 08:03:54,667 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:54,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:54,667 INFO L82 PathProgramCache]: Analyzing trace with hash -156049302, now seen corresponding path program 13 times [2021-03-25 08:03:54,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:54,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807283414] [2021-03-25 08:03:54,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:54,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:54,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:54,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:54,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:54,682 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:03:54,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:03:54,689 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:54,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:54,699 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:54,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:54,714 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:54,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:54,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:54,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807283414] [2021-03-25 08:03:54,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:54,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:54,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557430024] [2021-03-25 08:03:54,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:54,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:54,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:54,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:54,728 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:54,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 87 transitions, 1732 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:54,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:54,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:54,810 INFO L129 PetriNetUnfolder]: 21/468 cut-off events. [2021-03-25 08:03:54,810 INFO L130 PetriNetUnfolder]: For 5525/5661 co-relation queries the response was YES. [2021-03-25 08:03:54,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2342 conditions, 468 events. 21/468 cut-off events. For 5525/5661 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 4680 event pairs, 21 based on Foata normal form. 12/464 useless extension candidates. Maximal degree in co-relation 2300. Up to 93 conditions per place. [2021-03-25 08:03:54,812 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 31 selfloop transitions, 54 changer transitions 2/97 dead transitions. [2021-03-25 08:03:54,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 97 transitions, 2075 flow [2021-03-25 08:03:54,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:54,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:54,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:54,814 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:54,814 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:54,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:54,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:54,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:54,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,815 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,815 INFO L185 Difference]: Start difference. First operand has 105 places, 87 transitions, 1732 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:54,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 97 transitions, 2075 flow [2021-03-25 08:03:54,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 97 transitions, 1961 flow, removed 17 selfloop flow, removed 4 redundant places. [2021-03-25 08:03:54,830 INFO L241 Difference]: Finished difference. Result has 111 places, 89 transitions, 1833 flow [2021-03-25 08:03:54,831 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1638, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1833, PETRI_PLACES=111, PETRI_TRANSITIONS=89} [2021-03-25 08:03:54,831 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 79 predicate places. [2021-03-25 08:03:54,831 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:54,831 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 89 transitions, 1833 flow [2021-03-25 08:03:54,831 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 89 transitions, 1833 flow [2021-03-25 08:03:54,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 89 transitions, 1833 flow [2021-03-25 08:03:54,859 INFO L129 PetriNetUnfolder]: 0/424 cut-off events. [2021-03-25 08:03:54,859 INFO L130 PetriNetUnfolder]: For 5716/5806 co-relation queries the response was YES. [2021-03-25 08:03:54,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1905 conditions, 424 events. 0/424 cut-off events. For 5716/5806 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4390 event pairs, 0 based on Foata normal form. 0/416 useless extension candidates. Maximal degree in co-relation 0. Up to 53 conditions per place. [2021-03-25 08:03:54,862 INFO L142 LiptonReduction]: Number of co-enabled transitions 280 [2021-03-25 08:03:54,869 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:54,870 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:54,870 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-25 08:03:54,870 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 89 transitions, 1833 flow [2021-03-25 08:03:54,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,870 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:54,870 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:54,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 08:03:54,870 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:54,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:54,871 INFO L82 PathProgramCache]: Analyzing trace with hash -255599292, now seen corresponding path program 14 times [2021-03-25 08:03:54,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:54,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230303859] [2021-03-25 08:03:54,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:54,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:54,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:54,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:54,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:54,898 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:03:54,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:03:54,905 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:54,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:54,916 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:03:54,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:03:54,931 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:54,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:54,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:54,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230303859] [2021-03-25 08:03:54,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:54,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:54,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714109070] [2021-03-25 08:03:54,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:54,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:54,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:54,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:54,949 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:54,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 89 transitions, 1833 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:54,949 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:54,949 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:54,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:55,027 INFO L129 PetriNetUnfolder]: 21/462 cut-off events. [2021-03-25 08:03:55,027 INFO L130 PetriNetUnfolder]: For 5711/5857 co-relation queries the response was YES. [2021-03-25 08:03:55,028 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2349 conditions, 462 events. 21/462 cut-off events. For 5711/5857 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4590 event pairs, 21 based on Foata normal form. 15/461 useless extension candidates. Maximal degree in co-relation 2305. Up to 93 conditions per place. [2021-03-25 08:03:55,029 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 27 selfloop transitions, 55 changer transitions 3/95 dead transitions. [2021-03-25 08:03:55,029 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 95 transitions, 2078 flow [2021-03-25 08:03:55,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:55,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:55,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:03:55,030 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:03:55,031 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:03:55,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:03:55,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:55,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:03:55,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,032 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,032 INFO L185 Difference]: Start difference. First operand has 110 places, 89 transitions, 1833 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:03:55,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 95 transitions, 2078 flow [2021-03-25 08:03:55,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 95 transitions, 1988 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-03-25 08:03:55,048 INFO L241 Difference]: Finished difference. Result has 114 places, 89 transitions, 1870 flow [2021-03-25 08:03:55,048 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1749, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1870, PETRI_PLACES=114, PETRI_TRANSITIONS=89} [2021-03-25 08:03:55,048 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 82 predicate places. [2021-03-25 08:03:55,048 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:55,049 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 89 transitions, 1870 flow [2021-03-25 08:03:55,049 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 89 transitions, 1870 flow [2021-03-25 08:03:55,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 89 transitions, 1870 flow [2021-03-25 08:03:55,077 INFO L129 PetriNetUnfolder]: 0/417 cut-off events. [2021-03-25 08:03:55,077 INFO L130 PetriNetUnfolder]: For 5551/5626 co-relation queries the response was YES. [2021-03-25 08:03:55,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1905 conditions, 417 events. 0/417 cut-off events. For 5551/5626 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4282 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 0. Up to 52 conditions per place. [2021-03-25 08:03:55,080 INFO L142 LiptonReduction]: Number of co-enabled transitions 274 [2021-03-25 08:03:55,087 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:55,087 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:55,088 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-03-25 08:03:55,088 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 89 transitions, 1870 flow [2021-03-25 08:03:55,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,088 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:55,088 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:55,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 08:03:55,088 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:55,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:55,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1133551750, now seen corresponding path program 15 times [2021-03-25 08:03:55,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:55,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575843287] [2021-03-25 08:03:55,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:55,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:55,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:55,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:55,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:55,138 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:03:55,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:03:55,145 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:55,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:55,157 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:55,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:55,172 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:55,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:55,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:55,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575843287] [2021-03-25 08:03:55,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:55,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:55,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737056611] [2021-03-25 08:03:55,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:55,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:55,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:55,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:55,188 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:55,188 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 89 transitions, 1870 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:55,188 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:55,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:55,275 INFO L129 PetriNetUnfolder]: 21/455 cut-off events. [2021-03-25 08:03:55,276 INFO L130 PetriNetUnfolder]: For 5573/5709 co-relation queries the response was YES. [2021-03-25 08:03:55,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2345 conditions, 455 events. 21/455 cut-off events. For 5573/5709 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4497 event pairs, 21 based on Foata normal form. 13/450 useless extension candidates. Maximal degree in co-relation 2301. Up to 93 conditions per place. [2021-03-25 08:03:55,278 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 28 selfloop transitions, 54 changer transitions 3/95 dead transitions. [2021-03-25 08:03:55,278 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 95 transitions, 2125 flow [2021-03-25 08:03:55,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:55,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:55,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:55,281 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:55,281 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:55,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:55,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:55,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:55,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,282 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,282 INFO L185 Difference]: Start difference. First operand has 112 places, 89 transitions, 1870 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:55,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 95 transitions, 2125 flow [2021-03-25 08:03:55,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 95 transitions, 2000 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-25 08:03:55,301 INFO L241 Difference]: Finished difference. Result has 114 places, 89 transitions, 1876 flow [2021-03-25 08:03:55,301 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1757, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1876, PETRI_PLACES=114, PETRI_TRANSITIONS=89} [2021-03-25 08:03:55,301 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 82 predicate places. [2021-03-25 08:03:55,301 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:55,301 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 89 transitions, 1876 flow [2021-03-25 08:03:55,303 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 89 transitions, 1876 flow [2021-03-25 08:03:55,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 89 transitions, 1876 flow [2021-03-25 08:03:55,334 INFO L129 PetriNetUnfolder]: 0/408 cut-off events. [2021-03-25 08:03:55,334 INFO L130 PetriNetUnfolder]: For 5307/5377 co-relation queries the response was YES. [2021-03-25 08:03:55,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1863 conditions, 408 events. 0/408 cut-off events. For 5307/5377 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4159 event pairs, 0 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 0. Up to 51 conditions per place. [2021-03-25 08:03:55,337 INFO L142 LiptonReduction]: Number of co-enabled transitions 274 [2021-03-25 08:03:55,343 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:55,344 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:55,344 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-03-25 08:03:55,345 INFO L480 AbstractCegarLoop]: Abstraction has has 113 places, 89 transitions, 1876 flow [2021-03-25 08:03:55,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,345 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:55,345 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:55,345 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 08:03:55,345 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:55,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:55,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1140350436, now seen corresponding path program 16 times [2021-03-25 08:03:55,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:55,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976968604] [2021-03-25 08:03:55,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:55,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:55,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:55,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:55,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:55,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:55,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:55,377 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:03:55,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:03:55,394 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:55,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:55,408 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:55,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:55,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:55,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976968604] [2021-03-25 08:03:55,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:55,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:55,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680102555] [2021-03-25 08:03:55,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:55,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:55,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:55,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:55,423 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:55,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 89 transitions, 1876 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:55,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:55,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:55,503 INFO L129 PetriNetUnfolder]: 21/448 cut-off events. [2021-03-25 08:03:55,503 INFO L130 PetriNetUnfolder]: For 5212/5297 co-relation queries the response was YES. [2021-03-25 08:03:55,505 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2300 conditions, 448 events. 21/448 cut-off events. For 5212/5297 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4433 event pairs, 17 based on Foata normal form. 9/440 useless extension candidates. Maximal degree in co-relation 2257. Up to 91 conditions per place. [2021-03-25 08:03:55,506 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 54 selfloop transitions, 39 changer transitions 1/104 dead transitions. [2021-03-25 08:03:55,506 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 104 transitions, 2331 flow [2021-03-25 08:03:55,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:55,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:55,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:55,507 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:55,507 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:55,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:55,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:55,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:55,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,509 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,509 INFO L185 Difference]: Start difference. First operand has 113 places, 89 transitions, 1876 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:55,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 104 transitions, 2331 flow [2021-03-25 08:03:55,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 104 transitions, 2213 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-25 08:03:55,526 INFO L241 Difference]: Finished difference. Result has 119 places, 95 transitions, 2006 flow [2021-03-25 08:03:55,527 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1774, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2006, PETRI_PLACES=119, PETRI_TRANSITIONS=95} [2021-03-25 08:03:55,527 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 87 predicate places. [2021-03-25 08:03:55,527 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:55,527 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 95 transitions, 2006 flow [2021-03-25 08:03:55,527 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 95 transitions, 2006 flow [2021-03-25 08:03:55,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 118 places, 95 transitions, 2006 flow [2021-03-25 08:03:55,556 INFO L129 PetriNetUnfolder]: 0/402 cut-off events. [2021-03-25 08:03:55,556 INFO L130 PetriNetUnfolder]: For 5659/5732 co-relation queries the response was YES. [2021-03-25 08:03:55,556 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1893 conditions, 402 events. 0/402 cut-off events. For 5659/5732 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4087 event pairs, 0 based on Foata normal form. 0/393 useless extension candidates. Maximal degree in co-relation 0. Up to 50 conditions per place. [2021-03-25 08:03:55,559 INFO L142 LiptonReduction]: Number of co-enabled transitions 310 [2021-03-25 08:03:55,562 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:55,562 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:55,562 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-25 08:03:55,563 INFO L480 AbstractCegarLoop]: Abstraction has has 118 places, 95 transitions, 2006 flow [2021-03-25 08:03:55,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,566 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:55,566 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:55,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-25 08:03:55,566 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:55,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:55,566 INFO L82 PathProgramCache]: Analyzing trace with hash -665867718, now seen corresponding path program 17 times [2021-03-25 08:03:55,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:55,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589408967] [2021-03-25 08:03:55,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:55,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:55,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:55,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:55,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:55,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:55,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:55,589 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:03:55,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:03:55,607 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:03:55,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:03:55,624 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:55,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:55,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:55,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589408967] [2021-03-25 08:03:55,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:55,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:55,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300608859] [2021-03-25 08:03:55,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:55,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:55,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:55,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:55,638 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:55,638 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 95 transitions, 2006 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,639 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:55,639 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:55,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:55,711 INFO L129 PetriNetUnfolder]: 21/442 cut-off events. [2021-03-25 08:03:55,711 INFO L130 PetriNetUnfolder]: For 5590/5672 co-relation queries the response was YES. [2021-03-25 08:03:55,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2336 conditions, 442 events. 21/442 cut-off events. For 5590/5672 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4346 event pairs, 17 based on Foata normal form. 8/433 useless extension candidates. Maximal degree in co-relation 2290. Up to 91 conditions per place. [2021-03-25 08:03:55,714 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 52 selfloop transitions, 38 changer transitions 3/103 dead transitions. [2021-03-25 08:03:55,714 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 103 transitions, 2318 flow [2021-03-25 08:03:55,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:55,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:55,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:55,715 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:55,715 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:55,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:55,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:55,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:55,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,717 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,718 INFO L185 Difference]: Start difference. First operand has 118 places, 95 transitions, 2006 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:55,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 103 transitions, 2318 flow [2021-03-25 08:03:55,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 103 transitions, 2278 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-03-25 08:03:55,740 INFO L241 Difference]: Finished difference. Result has 124 places, 95 transitions, 2070 flow [2021-03-25 08:03:55,741 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1972, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2070, PETRI_PLACES=124, PETRI_TRANSITIONS=95} [2021-03-25 08:03:55,741 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 92 predicate places. [2021-03-25 08:03:55,741 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:55,741 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 95 transitions, 2070 flow [2021-03-25 08:03:55,741 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 95 transitions, 2070 flow [2021-03-25 08:03:55,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 95 transitions, 2070 flow [2021-03-25 08:03:55,769 INFO L129 PetriNetUnfolder]: 0/393 cut-off events. [2021-03-25 08:03:55,769 INFO L130 PetriNetUnfolder]: For 5712/5786 co-relation queries the response was YES. [2021-03-25 08:03:55,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1900 conditions, 393 events. 0/393 cut-off events. For 5712/5786 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3953 event pairs, 0 based on Foata normal form. 0/385 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2021-03-25 08:03:55,772 INFO L142 LiptonReduction]: Number of co-enabled transitions 302 [2021-03-25 08:03:55,776 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:55,776 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:55,776 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-25 08:03:55,776 INFO L480 AbstractCegarLoop]: Abstraction has has 123 places, 95 transitions, 2070 flow [2021-03-25 08:03:55,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,776 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:55,776 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:55,776 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-25 08:03:55,777 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:55,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:55,778 INFO L82 PathProgramCache]: Analyzing trace with hash -798335486, now seen corresponding path program 18 times [2021-03-25 08:03:55,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:55,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75792814] [2021-03-25 08:03:55,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:55,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:55,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:55,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:55,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:55,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:55,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:55,807 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:03:55,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:03:55,817 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:55,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:55,854 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:55,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:55,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:55,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75792814] [2021-03-25 08:03:55,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:55,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:55,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662739225] [2021-03-25 08:03:55,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:55,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:55,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:55,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:55,869 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:55,870 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 95 transitions, 2070 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:55,870 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:55,870 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:55,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:56,029 INFO L129 PetriNetUnfolder]: 21/433 cut-off events. [2021-03-25 08:03:56,029 INFO L130 PetriNetUnfolder]: For 5738/5820 co-relation queries the response was YES. [2021-03-25 08:03:56,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2342 conditions, 433 events. 21/433 cut-off events. For 5738/5820 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4230 event pairs, 17 based on Foata normal form. 8/424 useless extension candidates. Maximal degree in co-relation 2295. Up to 91 conditions per place. [2021-03-25 08:03:56,032 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 44 selfloop transitions, 44 changer transitions 2/100 dead transitions. [2021-03-25 08:03:56,032 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 100 transitions, 2302 flow [2021-03-25 08:03:56,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:56,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:56,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:56,048 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:56,048 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:56,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:56,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:56,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:56,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,049 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,049 INFO L185 Difference]: Start difference. First operand has 123 places, 95 transitions, 2070 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:56,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 100 transitions, 2302 flow [2021-03-25 08:03:56,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 100 transitions, 2222 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-25 08:03:56,086 INFO L241 Difference]: Finished difference. Result has 126 places, 94 transitions, 2068 flow [2021-03-25 08:03:56,086 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1996, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2068, PETRI_PLACES=126, PETRI_TRANSITIONS=94} [2021-03-25 08:03:56,086 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 94 predicate places. [2021-03-25 08:03:56,086 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:56,087 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 94 transitions, 2068 flow [2021-03-25 08:03:56,087 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 94 transitions, 2068 flow [2021-03-25 08:03:56,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 125 places, 94 transitions, 2068 flow [2021-03-25 08:03:56,147 INFO L129 PetriNetUnfolder]: 0/385 cut-off events. [2021-03-25 08:03:56,147 INFO L130 PetriNetUnfolder]: For 5772/5846 co-relation queries the response was YES. [2021-03-25 08:03:56,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1870 conditions, 385 events. 0/385 cut-off events. For 5772/5846 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3826 event pairs, 0 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 0. Up to 48 conditions per place. [2021-03-25 08:03:56,150 INFO L142 LiptonReduction]: Number of co-enabled transitions 298 [2021-03-25 08:03:56,153 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:56,153 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:56,153 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-03-25 08:03:56,153 INFO L480 AbstractCegarLoop]: Abstraction has has 125 places, 94 transitions, 2068 flow [2021-03-25 08:03:56,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,154 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:56,154 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:56,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-25 08:03:56,154 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:56,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:56,154 INFO L82 PathProgramCache]: Analyzing trace with hash -966484266, now seen corresponding path program 19 times [2021-03-25 08:03:56,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:56,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336313102] [2021-03-25 08:03:56,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:56,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:56,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:56,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:56,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:56,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:56,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:56,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:56,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:03:56,208 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:56,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:56,234 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:56,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:56,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:56,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336313102] [2021-03-25 08:03:56,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:56,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:56,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128066979] [2021-03-25 08:03:56,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:56,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:56,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:56,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:56,263 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:56,264 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 94 transitions, 2068 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,264 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:56,264 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:56,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:56,429 INFO L129 PetriNetUnfolder]: 17/451 cut-off events. [2021-03-25 08:03:56,429 INFO L130 PetriNetUnfolder]: For 6038/6120 co-relation queries the response was YES. [2021-03-25 08:03:56,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2425 conditions, 451 events. 17/451 cut-off events. For 6038/6120 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4495 event pairs, 17 based on Foata normal form. 7/440 useless extension candidates. Maximal degree in co-relation 2378. Up to 90 conditions per place. [2021-03-25 08:03:56,432 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 64 selfloop transitions, 37 changer transitions 2/113 dead transitions. [2021-03-25 08:03:56,432 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 113 transitions, 2677 flow [2021-03-25 08:03:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:56,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:56,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:56,448 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:56,448 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:56,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:56,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:56,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:56,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,449 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,449 INFO L185 Difference]: Start difference. First operand has 125 places, 94 transitions, 2068 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:56,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 113 transitions, 2677 flow [2021-03-25 08:03:56,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 113 transitions, 2583 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-03-25 08:03:56,487 INFO L241 Difference]: Finished difference. Result has 131 places, 99 transitions, 2215 flow [2021-03-25 08:03:56,487 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1989, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2215, PETRI_PLACES=131, PETRI_TRANSITIONS=99} [2021-03-25 08:03:56,488 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 99 predicate places. [2021-03-25 08:03:56,488 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:56,488 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 99 transitions, 2215 flow [2021-03-25 08:03:56,488 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 99 transitions, 2215 flow [2021-03-25 08:03:56,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 99 transitions, 2215 flow [2021-03-25 08:03:56,552 INFO L129 PetriNetUnfolder]: 0/415 cut-off events. [2021-03-25 08:03:56,552 INFO L130 PetriNetUnfolder]: For 6655/6742 co-relation queries the response was YES. [2021-03-25 08:03:56,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2064 conditions, 415 events. 0/415 cut-off events. For 6655/6742 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4242 event pairs, 0 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 0. Up to 52 conditions per place. [2021-03-25 08:03:56,555 INFO L142 LiptonReduction]: Number of co-enabled transitions 310 [2021-03-25 08:03:56,558 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:56,558 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:56,559 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-25 08:03:56,566 INFO L480 AbstractCegarLoop]: Abstraction has has 130 places, 99 transitions, 2215 flow [2021-03-25 08:03:56,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,567 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:56,567 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:56,567 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-25 08:03:56,567 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:56,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:56,567 INFO L82 PathProgramCache]: Analyzing trace with hash -2071671752, now seen corresponding path program 20 times [2021-03-25 08:03:56,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:56,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301744280] [2021-03-25 08:03:56,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:56,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:56,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:56,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:56,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:56,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:56,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:56,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:56,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:03:56,603 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:56,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:56,617 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:56,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:56,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:56,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301744280] [2021-03-25 08:03:56,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:56,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:56,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487222015] [2021-03-25 08:03:56,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:56,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:56,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:56,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:56,632 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:56,632 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 99 transitions, 2215 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,632 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:56,633 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:56,633 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:56,724 INFO L129 PetriNetUnfolder]: 17/444 cut-off events. [2021-03-25 08:03:56,724 INFO L130 PetriNetUnfolder]: For 6392/6481 co-relation queries the response was YES. [2021-03-25 08:03:56,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2435 conditions, 444 events. 17/444 cut-off events. For 6392/6481 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4405 event pairs, 17 based on Foata normal form. 8/437 useless extension candidates. Maximal degree in co-relation 2385. Up to 91 conditions per place. [2021-03-25 08:03:56,727 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 53 selfloop transitions, 41 changer transitions 2/106 dead transitions. [2021-03-25 08:03:56,727 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 106 transitions, 2520 flow [2021-03-25 08:03:56,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:56,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:56,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:56,728 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:56,728 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:56,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:56,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:56,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:56,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,729 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,729 INFO L185 Difference]: Start difference. First operand has 130 places, 99 transitions, 2215 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:56,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 106 transitions, 2520 flow [2021-03-25 08:03:56,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 106 transitions, 2457 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-03-25 08:03:56,750 INFO L241 Difference]: Finished difference. Result has 135 places, 99 transitions, 2262 flow [2021-03-25 08:03:56,750 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2161, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2262, PETRI_PLACES=135, PETRI_TRANSITIONS=99} [2021-03-25 08:03:56,750 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 103 predicate places. [2021-03-25 08:03:56,750 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:56,750 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 99 transitions, 2262 flow [2021-03-25 08:03:56,750 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 99 transitions, 2262 flow [2021-03-25 08:03:56,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 134 places, 99 transitions, 2262 flow [2021-03-25 08:03:56,781 INFO L129 PetriNetUnfolder]: 0/408 cut-off events. [2021-03-25 08:03:56,781 INFO L130 PetriNetUnfolder]: For 6917/7002 co-relation queries the response was YES. [2021-03-25 08:03:56,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2089 conditions, 408 events. 0/408 cut-off events. For 6917/7002 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4165 event pairs, 0 based on Foata normal form. 0/395 useless extension candidates. Maximal degree in co-relation 0. Up to 51 conditions per place. [2021-03-25 08:03:56,783 INFO L142 LiptonReduction]: Number of co-enabled transitions 316 [2021-03-25 08:03:56,788 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:56,788 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:56,788 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-03-25 08:03:56,789 INFO L480 AbstractCegarLoop]: Abstraction has has 134 places, 99 transitions, 2262 flow [2021-03-25 08:03:56,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,789 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:56,789 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:56,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-25 08:03:56,789 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:56,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:56,790 INFO L82 PathProgramCache]: Analyzing trace with hash 248574312, now seen corresponding path program 21 times [2021-03-25 08:03:56,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:56,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731278028] [2021-03-25 08:03:56,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:56,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:56,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:56,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:56,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:56,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:56,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:56,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:56,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:03:56,822 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:56,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:56,857 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:56,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:56,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:56,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731278028] [2021-03-25 08:03:56,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:56,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:56,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604934957] [2021-03-25 08:03:56,872 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:56,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:56,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:56,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:56,873 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:56,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 99 transitions, 2262 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:56,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:56,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:56,969 INFO L129 PetriNetUnfolder]: 17/437 cut-off events. [2021-03-25 08:03:56,969 INFO L130 PetriNetUnfolder]: For 6662/6775 co-relation queries the response was YES. [2021-03-25 08:03:56,970 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2457 conditions, 437 events. 17/437 cut-off events. For 6662/6775 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4291 event pairs, 17 based on Foata normal form. 12/432 useless extension candidates. Maximal degree in co-relation 2406. Up to 91 conditions per place. [2021-03-25 08:03:56,971 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 52 selfloop transitions, 40 changer transitions 2/104 dead transitions. [2021-03-25 08:03:56,971 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 104 transitions, 2510 flow [2021-03-25 08:03:56,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:56,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:56,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:56,972 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:56,973 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:56,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:56,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:56,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:56,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,974 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:56,974 INFO L185 Difference]: Start difference. First operand has 134 places, 99 transitions, 2262 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:56,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 104 transitions, 2510 flow [2021-03-25 08:03:56,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 104 transitions, 2430 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-25 08:03:56,997 INFO L241 Difference]: Finished difference. Result has 137 places, 99 transitions, 2273 flow [2021-03-25 08:03:56,997 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2188, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2273, PETRI_PLACES=137, PETRI_TRANSITIONS=99} [2021-03-25 08:03:56,998 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 105 predicate places. [2021-03-25 08:03:56,998 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:56,998 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 99 transitions, 2273 flow [2021-03-25 08:03:56,998 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 99 transitions, 2273 flow [2021-03-25 08:03:56,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 136 places, 99 transitions, 2273 flow [2021-03-25 08:03:57,034 INFO L129 PetriNetUnfolder]: 0/401 cut-off events. [2021-03-25 08:03:57,034 INFO L130 PetriNetUnfolder]: For 6772/6857 co-relation queries the response was YES. [2021-03-25 08:03:57,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2092 conditions, 401 events. 0/401 cut-off events. For 6772/6857 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4033 event pairs, 0 based on Foata normal form. 0/390 useless extension candidates. Maximal degree in co-relation 0. Up to 50 conditions per place. [2021-03-25 08:03:57,038 INFO L142 LiptonReduction]: Number of co-enabled transitions 320 [2021-03-25 08:03:57,042 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:57,042 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:57,042 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-03-25 08:03:57,043 INFO L480 AbstractCegarLoop]: Abstraction has has 136 places, 99 transitions, 2273 flow [2021-03-25 08:03:57,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,043 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:57,043 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:57,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-25 08:03:57,043 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:57,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:57,043 INFO L82 PathProgramCache]: Analyzing trace with hash -729072352, now seen corresponding path program 22 times [2021-03-25 08:03:57,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:57,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222554319] [2021-03-25 08:03:57,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:57,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:57,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:57,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:57,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:57,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:57,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:57,068 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:57,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:57,080 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:57,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:57,095 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:57,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:57,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:57,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222554319] [2021-03-25 08:03:57,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:57,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:57,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012491443] [2021-03-25 08:03:57,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:57,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:57,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:57,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:57,111 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:57,111 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 99 transitions, 2273 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,111 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:57,111 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:57,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:57,193 INFO L129 PetriNetUnfolder]: 17/430 cut-off events. [2021-03-25 08:03:57,193 INFO L130 PetriNetUnfolder]: For 6501/6611 co-relation queries the response was YES. [2021-03-25 08:03:57,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2457 conditions, 430 events. 17/430 cut-off events. For 6501/6611 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4204 event pairs, 17 based on Foata normal form. 8/421 useless extension candidates. Maximal degree in co-relation 2407. Up to 90 conditions per place. [2021-03-25 08:03:57,196 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 58 selfloop transitions, 39 changer transitions 2/109 dead transitions. [2021-03-25 08:03:57,196 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 109 transitions, 2666 flow [2021-03-25 08:03:57,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:57,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:57,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:57,197 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:57,197 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:57,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:57,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:57,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:57,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,198 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,198 INFO L185 Difference]: Start difference. First operand has 136 places, 99 transitions, 2273 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:57,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 109 transitions, 2666 flow [2021-03-25 08:03:57,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 109 transitions, 2601 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-25 08:03:57,219 INFO L241 Difference]: Finished difference. Result has 143 places, 102 transitions, 2409 flow [2021-03-25 08:03:57,220 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2217, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2409, PETRI_PLACES=143, PETRI_TRANSITIONS=102} [2021-03-25 08:03:57,220 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 111 predicate places. [2021-03-25 08:03:57,220 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:57,220 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 102 transitions, 2409 flow [2021-03-25 08:03:57,221 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 102 transitions, 2409 flow [2021-03-25 08:03:57,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 142 places, 102 transitions, 2409 flow [2021-03-25 08:03:57,251 INFO L129 PetriNetUnfolder]: 0/394 cut-off events. [2021-03-25 08:03:57,251 INFO L130 PetriNetUnfolder]: For 7102/7191 co-relation queries the response was YES. [2021-03-25 08:03:57,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2118 conditions, 394 events. 0/394 cut-off events. For 7102/7191 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3949 event pairs, 0 based on Foata normal form. 0/381 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2021-03-25 08:03:57,254 INFO L142 LiptonReduction]: Number of co-enabled transitions 332 [2021-03-25 08:03:57,258 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:57,258 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:57,259 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-25 08:03:57,259 INFO L480 AbstractCegarLoop]: Abstraction has has 142 places, 102 transitions, 2409 flow [2021-03-25 08:03:57,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,259 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:57,259 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:57,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-25 08:03:57,259 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:57,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:57,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1584379006, now seen corresponding path program 23 times [2021-03-25 08:03:57,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:57,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506052945] [2021-03-25 08:03:57,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:57,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:57,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:57,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:57,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:57,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:57,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:57,293 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:57,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:57,304 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:57,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:57,319 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:57,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:57,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:57,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506052945] [2021-03-25 08:03:57,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:57,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:57,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421644674] [2021-03-25 08:03:57,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:57,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:57,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:57,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:57,335 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:57,335 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 102 transitions, 2409 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,335 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:57,335 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:57,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:57,429 INFO L129 PetriNetUnfolder]: 17/423 cut-off events. [2021-03-25 08:03:57,429 INFO L130 PetriNetUnfolder]: For 6847/6957 co-relation queries the response was YES. [2021-03-25 08:03:57,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2480 conditions, 423 events. 17/423 cut-off events. For 6847/6957 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4112 event pairs, 17 based on Foata normal form. 8/414 useless extension candidates. Maximal degree in co-relation 2427. Up to 90 conditions per place. [2021-03-25 08:03:57,431 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 57 selfloop transitions, 38 changer transitions 2/107 dead transitions. [2021-03-25 08:03:57,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 107 transitions, 2664 flow [2021-03-25 08:03:57,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:57,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:57,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:57,432 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:57,432 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:57,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:57,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:57,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:57,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,433 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,433 INFO L185 Difference]: Start difference. First operand has 142 places, 102 transitions, 2409 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:57,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 107 transitions, 2664 flow [2021-03-25 08:03:57,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 107 transitions, 2579 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-25 08:03:57,458 INFO L241 Difference]: Finished difference. Result has 145 places, 102 transitions, 2410 flow [2021-03-25 08:03:57,458 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2332, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2410, PETRI_PLACES=145, PETRI_TRANSITIONS=102} [2021-03-25 08:03:57,458 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 113 predicate places. [2021-03-25 08:03:57,458 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:57,458 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 102 transitions, 2410 flow [2021-03-25 08:03:57,459 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 102 transitions, 2410 flow [2021-03-25 08:03:57,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 144 places, 102 transitions, 2410 flow [2021-03-25 08:03:57,490 INFO L129 PetriNetUnfolder]: 0/387 cut-off events. [2021-03-25 08:03:57,490 INFO L130 PetriNetUnfolder]: For 7129/7219 co-relation queries the response was YES. [2021-03-25 08:03:57,490 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2089 conditions, 387 events. 0/387 cut-off events. For 7129/7219 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3866 event pairs, 0 based on Foata normal form. 0/374 useless extension candidates. Maximal degree in co-relation 0. Up to 48 conditions per place. [2021-03-25 08:03:57,493 INFO L142 LiptonReduction]: Number of co-enabled transitions 334 [2021-03-25 08:03:57,497 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:57,497 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:57,497 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-25 08:03:57,497 INFO L480 AbstractCegarLoop]: Abstraction has has 144 places, 102 transitions, 2410 flow [2021-03-25 08:03:57,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,498 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:57,498 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:57,498 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-25 08:03:57,498 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:57,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:57,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1796092904, now seen corresponding path program 24 times [2021-03-25 08:03:57,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:57,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573248701] [2021-03-25 08:03:57,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:57,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:57,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:57,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:57,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:57,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:57,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:57,520 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:03:57,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:03:57,538 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:03:57,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:03:57,553 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:57,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:57,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:57,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573248701] [2021-03-25 08:03:57,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:57,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:57,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571284952] [2021-03-25 08:03:57,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:57,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:57,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:57,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:57,569 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:57,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 102 transitions, 2410 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:57,569 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:57,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:57,646 INFO L129 PetriNetUnfolder]: 17/416 cut-off events. [2021-03-25 08:03:57,646 INFO L130 PetriNetUnfolder]: For 6840/6953 co-relation queries the response was YES. [2021-03-25 08:03:57,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2448 conditions, 416 events. 17/416 cut-off events. For 6840/6953 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4022 event pairs, 17 based on Foata normal form. 8/408 useless extension candidates. Maximal degree in co-relation 2395. Up to 90 conditions per place. [2021-03-25 08:03:57,648 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 49 selfloop transitions, 44 changer transitions 2/105 dead transitions. [2021-03-25 08:03:57,648 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 105 transitions, 2612 flow [2021-03-25 08:03:57,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:57,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:57,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:57,649 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:57,649 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:57,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:57,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:57,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:57,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,651 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,651 INFO L185 Difference]: Start difference. First operand has 144 places, 102 transitions, 2410 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:57,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 105 transitions, 2612 flow [2021-03-25 08:03:57,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 105 transitions, 2535 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-25 08:03:57,674 INFO L241 Difference]: Finished difference. Result has 147 places, 100 transitions, 2363 flow [2021-03-25 08:03:57,675 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2339, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2363, PETRI_PLACES=147, PETRI_TRANSITIONS=100} [2021-03-25 08:03:57,675 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 115 predicate places. [2021-03-25 08:03:57,675 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:57,675 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 100 transitions, 2363 flow [2021-03-25 08:03:57,676 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 100 transitions, 2363 flow [2021-03-25 08:03:57,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 146 places, 100 transitions, 2363 flow [2021-03-25 08:03:57,715 INFO L129 PetriNetUnfolder]: 0/380 cut-off events. [2021-03-25 08:03:57,715 INFO L130 PetriNetUnfolder]: For 6995/7087 co-relation queries the response was YES. [2021-03-25 08:03:57,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2062 conditions, 380 events. 0/380 cut-off events. For 6995/7087 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3780 event pairs, 0 based on Foata normal form. 0/367 useless extension candidates. Maximal degree in co-relation 0. Up to 47 conditions per place. [2021-03-25 08:03:57,718 INFO L142 LiptonReduction]: Number of co-enabled transitions 322 [2021-03-25 08:03:57,722 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:57,722 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:57,722 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-03-25 08:03:57,722 INFO L480 AbstractCegarLoop]: Abstraction has has 146 places, 100 transitions, 2363 flow [2021-03-25 08:03:57,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,723 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:57,723 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:57,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-25 08:03:57,723 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:57,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:57,723 INFO L82 PathProgramCache]: Analyzing trace with hash 2039164828, now seen corresponding path program 25 times [2021-03-25 08:03:57,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:57,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127433579] [2021-03-25 08:03:57,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:57,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:57,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:57,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:57,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:57,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:57,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:57,747 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:57,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:57,758 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:03:57,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:03:57,773 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:57,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:57,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:57,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127433579] [2021-03-25 08:03:57,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:57,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:57,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264489754] [2021-03-25 08:03:57,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:57,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:57,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:57,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:57,788 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:57,789 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 100 transitions, 2363 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,789 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:57,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:57,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:57,866 INFO L129 PetriNetUnfolder]: 17/409 cut-off events. [2021-03-25 08:03:57,866 INFO L130 PetriNetUnfolder]: For 6685/6798 co-relation queries the response was YES. [2021-03-25 08:03:57,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2418 conditions, 409 events. 17/409 cut-off events. For 6685/6798 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3932 event pairs, 17 based on Foata normal form. 8/401 useless extension candidates. Maximal degree in co-relation 2365. Up to 90 conditions per place. [2021-03-25 08:03:57,874 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 46 selfloop transitions, 44 changer transitions 3/103 dead transitions. [2021-03-25 08:03:57,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 103 transitions, 2561 flow [2021-03-25 08:03:57,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:57,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:57,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:57,875 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:57,875 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:57,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:57,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:57,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:57,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,879 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,879 INFO L185 Difference]: Start difference. First operand has 146 places, 100 transitions, 2363 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:57,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 103 transitions, 2561 flow [2021-03-25 08:03:57,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 103 transitions, 2468 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-25 08:03:57,904 INFO L241 Difference]: Finished difference. Result has 148 places, 97 transitions, 2273 flow [2021-03-25 08:03:57,904 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2276, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2273, PETRI_PLACES=148, PETRI_TRANSITIONS=97} [2021-03-25 08:03:57,905 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 116 predicate places. [2021-03-25 08:03:57,906 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:57,906 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 97 transitions, 2273 flow [2021-03-25 08:03:57,906 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 97 transitions, 2273 flow [2021-03-25 08:03:57,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 145 places, 97 transitions, 2273 flow [2021-03-25 08:03:57,935 INFO L129 PetriNetUnfolder]: 0/371 cut-off events. [2021-03-25 08:03:57,935 INFO L130 PetriNetUnfolder]: For 6554/6646 co-relation queries the response was YES. [2021-03-25 08:03:57,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1997 conditions, 371 events. 0/371 cut-off events. For 6554/6646 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3654 event pairs, 0 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 0. Up to 46 conditions per place. [2021-03-25 08:03:57,938 INFO L142 LiptonReduction]: Number of co-enabled transitions 304 [2021-03-25 08:03:57,941 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:57,942 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:57,942 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-03-25 08:03:57,942 INFO L480 AbstractCegarLoop]: Abstraction has has 145 places, 97 transitions, 2273 flow [2021-03-25 08:03:57,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:57,942 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:57,942 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:57,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-25 08:03:57,942 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:57,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:57,943 INFO L82 PathProgramCache]: Analyzing trace with hash 399743908, now seen corresponding path program 26 times [2021-03-25 08:03:57,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:57,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506832355] [2021-03-25 08:03:57,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:57,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:57,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:57,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:57,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:57,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:57,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:57,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:57,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:03:57,976 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:57,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:57,991 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:57,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:58,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:58,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506832355] [2021-03-25 08:03:58,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:58,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:58,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12282420] [2021-03-25 08:03:58,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:58,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:58,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:58,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:58,006 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:58,006 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 97 transitions, 2273 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,006 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:58,006 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:58,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:58,090 INFO L129 PetriNetUnfolder]: 17/400 cut-off events. [2021-03-25 08:03:58,090 INFO L130 PetriNetUnfolder]: For 6295/6411 co-relation queries the response was YES. [2021-03-25 08:03:58,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2348 conditions, 400 events. 17/400 cut-off events. For 6295/6411 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3807 event pairs, 17 based on Foata normal form. 9/392 useless extension candidates. Maximal degree in co-relation 2296. Up to 87 conditions per place. [2021-03-25 08:03:58,093 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 58 selfloop transitions, 36 changer transitions 2/106 dead transitions. [2021-03-25 08:03:58,093 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 106 transitions, 2642 flow [2021-03-25 08:03:58,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:58,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:58,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:58,094 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:58,094 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:58,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:58,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:58,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:58,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,095 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,095 INFO L185 Difference]: Start difference. First operand has 145 places, 97 transitions, 2273 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:58,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 106 transitions, 2642 flow [2021-03-25 08:03:58,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 106 transitions, 2449 flow, removed 12 selfloop flow, removed 10 redundant places. [2021-03-25 08:03:58,118 INFO L241 Difference]: Finished difference. Result has 143 places, 97 transitions, 2185 flow [2021-03-25 08:03:58,118 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2100, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2185, PETRI_PLACES=143, PETRI_TRANSITIONS=97} [2021-03-25 08:03:58,118 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 111 predicate places. [2021-03-25 08:03:58,118 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:58,118 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 97 transitions, 2185 flow [2021-03-25 08:03:58,118 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 97 transitions, 2185 flow [2021-03-25 08:03:58,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 142 places, 97 transitions, 2185 flow [2021-03-25 08:03:58,147 INFO L129 PetriNetUnfolder]: 0/364 cut-off events. [2021-03-25 08:03:58,147 INFO L130 PetriNetUnfolder]: For 5961/6040 co-relation queries the response was YES. [2021-03-25 08:03:58,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1910 conditions, 364 events. 0/364 cut-off events. For 5961/6040 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3567 event pairs, 0 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 0. Up to 45 conditions per place. [2021-03-25 08:03:58,150 INFO L142 LiptonReduction]: Number of co-enabled transitions 308 [2021-03-25 08:03:58,154 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:58,154 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:58,154 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-03-25 08:03:58,155 INFO L480 AbstractCegarLoop]: Abstraction has has 142 places, 97 transitions, 2185 flow [2021-03-25 08:03:58,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,155 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:58,155 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:58,155 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-25 08:03:58,155 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:58,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:58,155 INFO L82 PathProgramCache]: Analyzing trace with hash 598474238, now seen corresponding path program 27 times [2021-03-25 08:03:58,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:58,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618231765] [2021-03-25 08:03:58,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:58,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:58,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:58,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:58,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:58,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:58,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:58,176 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:58,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:58,190 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:58,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:58,205 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:58,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:58,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:58,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618231765] [2021-03-25 08:03:58,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:58,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:58,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398822938] [2021-03-25 08:03:58,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:58,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:58,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:58,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:58,220 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:58,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 97 transitions, 2185 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:58,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:58,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:58,302 INFO L129 PetriNetUnfolder]: 17/393 cut-off events. [2021-03-25 08:03:58,302 INFO L130 PetriNetUnfolder]: For 5669/5790 co-relation queries the response was YES. [2021-03-25 08:03:58,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2252 conditions, 393 events. 17/393 cut-off events. For 5669/5790 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3713 event pairs, 17 based on Foata normal form. 8/385 useless extension candidates. Maximal degree in co-relation 2204. Up to 87 conditions per place. [2021-03-25 08:03:58,304 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 56 selfloop transitions, 36 changer transitions 2/104 dead transitions. [2021-03-25 08:03:58,304 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 104 transitions, 2482 flow [2021-03-25 08:03:58,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:58,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:58,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:58,305 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:58,305 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:58,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:58,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:58,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:58,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,307 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,307 INFO L185 Difference]: Start difference. First operand has 142 places, 97 transitions, 2185 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:58,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 104 transitions, 2482 flow [2021-03-25 08:03:58,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 104 transitions, 2410 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-25 08:03:58,326 INFO L241 Difference]: Finished difference. Result has 146 places, 99 transitions, 2257 flow [2021-03-25 08:03:58,326 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2119, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2257, PETRI_PLACES=146, PETRI_TRANSITIONS=99} [2021-03-25 08:03:58,326 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 114 predicate places. [2021-03-25 08:03:58,326 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:58,326 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 99 transitions, 2257 flow [2021-03-25 08:03:58,327 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 99 transitions, 2257 flow [2021-03-25 08:03:58,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 145 places, 99 transitions, 2257 flow [2021-03-25 08:03:58,352 INFO L129 PetriNetUnfolder]: 0/357 cut-off events. [2021-03-25 08:03:58,353 INFO L130 PetriNetUnfolder]: For 6116/6194 co-relation queries the response was YES. [2021-03-25 08:03:58,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1900 conditions, 357 events. 0/357 cut-off events. For 6116/6194 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3481 event pairs, 0 based on Foata normal form. 0/346 useless extension candidates. Maximal degree in co-relation 0. Up to 44 conditions per place. [2021-03-25 08:03:58,355 INFO L142 LiptonReduction]: Number of co-enabled transitions 320 [2021-03-25 08:03:58,359 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:58,359 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:58,359 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-25 08:03:58,359 INFO L480 AbstractCegarLoop]: Abstraction has has 145 places, 99 transitions, 2257 flow [2021-03-25 08:03:58,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,359 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:58,360 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:58,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-25 08:03:58,360 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:58,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:58,360 INFO L82 PathProgramCache]: Analyzing trace with hash 101524980, now seen corresponding path program 28 times [2021-03-25 08:03:58,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:58,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980434373] [2021-03-25 08:03:58,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:58,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:58,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:58,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:58,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:58,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:58,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:58,385 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:58,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:58,396 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:58,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:58,411 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:58,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:58,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980434373] [2021-03-25 08:03:58,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:58,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:58,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677861350] [2021-03-25 08:03:58,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:58,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:58,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:58,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:58,426 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:58,427 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 99 transitions, 2257 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,427 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:58,427 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:58,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:58,529 INFO L129 PetriNetUnfolder]: 17/386 cut-off events. [2021-03-25 08:03:58,529 INFO L130 PetriNetUnfolder]: For 5810/5926 co-relation queries the response was YES. [2021-03-25 08:03:58,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2239 conditions, 386 events. 17/386 cut-off events. For 5810/5926 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3617 event pairs, 17 based on Foata normal form. 8/378 useless extension candidates. Maximal degree in co-relation 2190. Up to 87 conditions per place. [2021-03-25 08:03:58,530 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 53 selfloop transitions, 36 changer transitions 3/102 dead transitions. [2021-03-25 08:03:58,530 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 102 transitions, 2453 flow [2021-03-25 08:03:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:58,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:58,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:58,531 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:58,531 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:58,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:58,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:58,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:58,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,537 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,537 INFO L185 Difference]: Start difference. First operand has 145 places, 99 transitions, 2257 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:58,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 102 transitions, 2453 flow [2021-03-25 08:03:58,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 102 transitions, 2390 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-03-25 08:03:58,557 INFO L241 Difference]: Finished difference. Result has 148 places, 96 transitions, 2193 flow [2021-03-25 08:03:58,558 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2200, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2193, PETRI_PLACES=148, PETRI_TRANSITIONS=96} [2021-03-25 08:03:58,558 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 116 predicate places. [2021-03-25 08:03:58,558 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:58,558 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 96 transitions, 2193 flow [2021-03-25 08:03:58,558 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 96 transitions, 2193 flow [2021-03-25 08:03:58,559 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 147 places, 96 transitions, 2193 flow [2021-03-25 08:03:58,582 INFO L129 PetriNetUnfolder]: 0/349 cut-off events. [2021-03-25 08:03:58,582 INFO L130 PetriNetUnfolder]: For 5896/5974 co-relation queries the response was YES. [2021-03-25 08:03:58,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1877 conditions, 349 events. 0/349 cut-off events. For 5896/5974 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3381 event pairs, 0 based on Foata normal form. 0/338 useless extension candidates. Maximal degree in co-relation 0. Up to 43 conditions per place. [2021-03-25 08:03:58,584 INFO L142 LiptonReduction]: Number of co-enabled transitions 310 [2021-03-25 08:03:58,589 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:58,589 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:58,589 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-25 08:03:58,589 INFO L480 AbstractCegarLoop]: Abstraction has has 147 places, 96 transitions, 2193 flow [2021-03-25 08:03:58,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,590 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:58,590 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:58,590 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-25 08:03:58,590 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:58,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:58,590 INFO L82 PathProgramCache]: Analyzing trace with hash 59278978, now seen corresponding path program 29 times [2021-03-25 08:03:58,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:58,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719721939] [2021-03-25 08:03:58,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:58,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:58,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:58,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:58,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:58,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:58,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:58,613 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:58,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:58,624 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:58,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:58,638 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:58,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:58,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719721939] [2021-03-25 08:03:58,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:58,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:58,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630675896] [2021-03-25 08:03:58,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:58,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:58,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:58,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:58,654 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:58,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 96 transitions, 2193 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:58,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:58,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:58,734 INFO L129 PetriNetUnfolder]: 17/378 cut-off events. [2021-03-25 08:03:58,735 INFO L130 PetriNetUnfolder]: For 5604/5723 co-relation queries the response was YES. [2021-03-25 08:03:58,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2212 conditions, 378 events. 17/378 cut-off events. For 5604/5723 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3509 event pairs, 17 based on Foata normal form. 9/371 useless extension candidates. Maximal degree in co-relation 2164. Up to 87 conditions per place. [2021-03-25 08:03:58,736 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 53 selfloop transitions, 33 changer transitions 3/99 dead transitions. [2021-03-25 08:03:58,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 99 transitions, 2383 flow [2021-03-25 08:03:58,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:58,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:58,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:58,737 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:58,737 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:58,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:58,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:58,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:58,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,739 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,739 INFO L185 Difference]: Start difference. First operand has 147 places, 96 transitions, 2193 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:58,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 99 transitions, 2383 flow [2021-03-25 08:03:58,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 99 transitions, 2311 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-25 08:03:58,759 INFO L241 Difference]: Finished difference. Result has 150 places, 93 transitions, 2115 flow [2021-03-25 08:03:58,759 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2127, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2115, PETRI_PLACES=150, PETRI_TRANSITIONS=93} [2021-03-25 08:03:58,759 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 118 predicate places. [2021-03-25 08:03:58,759 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:58,760 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 93 transitions, 2115 flow [2021-03-25 08:03:58,760 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 93 transitions, 2115 flow [2021-03-25 08:03:58,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 149 places, 93 transitions, 2115 flow [2021-03-25 08:03:58,783 INFO L129 PetriNetUnfolder]: 0/332 cut-off events. [2021-03-25 08:03:58,783 INFO L130 PetriNetUnfolder]: For 5264/5312 co-relation queries the response was YES. [2021-03-25 08:03:58,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1733 conditions, 332 events. 0/332 cut-off events. For 5264/5312 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3194 event pairs, 0 based on Foata normal form. 1/327 useless extension candidates. Maximal degree in co-relation 0. Up to 42 conditions per place. [2021-03-25 08:03:58,785 INFO L142 LiptonReduction]: Number of co-enabled transitions 296 [2021-03-25 08:03:58,789 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:58,790 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:58,790 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-25 08:03:58,790 INFO L480 AbstractCegarLoop]: Abstraction has has 149 places, 93 transitions, 2115 flow [2021-03-25 08:03:58,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,790 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:58,790 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:58,790 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-25 08:03:58,790 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:58,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:58,790 INFO L82 PathProgramCache]: Analyzing trace with hash 839613698, now seen corresponding path program 30 times [2021-03-25 08:03:58,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:58,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942038559] [2021-03-25 08:03:58,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:58,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:58,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:58,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:58,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:58,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:58,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:58,811 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:58,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:58,827 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:03:58,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:03:58,845 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:58,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:58,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:58,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942038559] [2021-03-25 08:03:58,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:58,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:58,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657060229] [2021-03-25 08:03:58,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:58,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:58,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:58,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:58,861 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:58,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 93 transitions, 2115 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:58,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:58,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:58,940 INFO L129 PetriNetUnfolder]: 14/442 cut-off events. [2021-03-25 08:03:58,940 INFO L130 PetriNetUnfolder]: For 5979/6016 co-relation queries the response was YES. [2021-03-25 08:03:58,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2423 conditions, 442 events. 14/442 cut-off events. For 5979/6016 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4400 event pairs, 5 based on Foata normal form. 2/434 useless extension candidates. Maximal degree in co-relation 2375. Up to 96 conditions per place. [2021-03-25 08:03:58,942 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 62 selfloop transitions, 47 changer transitions 2/121 dead transitions. [2021-03-25 08:03:58,942 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 121 transitions, 2929 flow [2021-03-25 08:03:58,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:58,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:58,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:58,943 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:58,943 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:58,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:58,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:58,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:58,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,946 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:58,946 INFO L185 Difference]: Start difference. First operand has 149 places, 93 transitions, 2115 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:58,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 121 transitions, 2929 flow [2021-03-25 08:03:58,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 121 transitions, 2775 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-25 08:03:58,967 INFO L241 Difference]: Finished difference. Result has 154 places, 99 transitions, 2315 flow [2021-03-25 08:03:58,968 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2006, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2315, PETRI_PLACES=154, PETRI_TRANSITIONS=99} [2021-03-25 08:03:58,968 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 122 predicate places. [2021-03-25 08:03:58,968 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:58,968 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 99 transitions, 2315 flow [2021-03-25 08:03:58,968 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 99 transitions, 2315 flow [2021-03-25 08:03:58,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 153 places, 99 transitions, 2315 flow [2021-03-25 08:03:58,997 INFO L129 PetriNetUnfolder]: 0/408 cut-off events. [2021-03-25 08:03:58,997 INFO L130 PetriNetUnfolder]: For 6842/6919 co-relation queries the response was YES. [2021-03-25 08:03:58,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2092 conditions, 408 events. 0/408 cut-off events. For 6842/6919 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4161 event pairs, 0 based on Foata normal form. 1/396 useless extension candidates. Maximal degree in co-relation 0. Up to 51 conditions per place. [2021-03-25 08:03:59,000 INFO L142 LiptonReduction]: Number of co-enabled transitions 310 [2021-03-25 08:03:59,003 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:59,003 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:59,004 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-03-25 08:03:59,004 INFO L480 AbstractCegarLoop]: Abstraction has has 153 places, 99 transitions, 2315 flow [2021-03-25 08:03:59,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,004 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:59,004 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:59,004 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-25 08:03:59,004 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:59,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:59,004 INFO L82 PathProgramCache]: Analyzing trace with hash -457408890, now seen corresponding path program 31 times [2021-03-25 08:03:59,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:59,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171481224] [2021-03-25 08:03:59,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:59,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:59,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:59,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:59,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:59,019 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:59,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:59,031 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:59,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:59,048 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:03:59,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:03:59,062 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:59,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:59,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:59,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171481224] [2021-03-25 08:03:59,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:59,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:59,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825597204] [2021-03-25 08:03:59,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:59,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:59,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:59,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:59,078 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:59,078 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 99 transitions, 2315 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,078 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:59,078 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:59,078 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:59,160 INFO L129 PetriNetUnfolder]: 13/482 cut-off events. [2021-03-25 08:03:59,160 INFO L130 PetriNetUnfolder]: For 7112/7124 co-relation queries the response was YES. [2021-03-25 08:03:59,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2685 conditions, 482 events. 13/482 cut-off events. For 7112/7124 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4930 event pairs, 2 based on Foata normal form. 2/474 useless extension candidates. Maximal degree in co-relation 2634. Up to 110 conditions per place. [2021-03-25 08:03:59,162 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 73 selfloop transitions, 47 changer transitions 2/132 dead transitions. [2021-03-25 08:03:59,162 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 132 transitions, 3247 flow [2021-03-25 08:03:59,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:59,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:59,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:59,163 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:59,163 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:59,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:59,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:59,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:59,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,164 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,165 INFO L185 Difference]: Start difference. First operand has 153 places, 99 transitions, 2315 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:59,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 132 transitions, 3247 flow [2021-03-25 08:03:59,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 132 transitions, 3194 flow, removed 11 selfloop flow, removed 3 redundant places. [2021-03-25 08:03:59,190 INFO L241 Difference]: Finished difference. Result has 161 places, 108 transitions, 2656 flow [2021-03-25 08:03:59,191 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2285, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2656, PETRI_PLACES=161, PETRI_TRANSITIONS=108} [2021-03-25 08:03:59,191 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 129 predicate places. [2021-03-25 08:03:59,191 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:59,191 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 108 transitions, 2656 flow [2021-03-25 08:03:59,191 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 108 transitions, 2656 flow [2021-03-25 08:03:59,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 160 places, 108 transitions, 2656 flow [2021-03-25 08:03:59,226 INFO L129 PetriNetUnfolder]: 0/449 cut-off events. [2021-03-25 08:03:59,226 INFO L130 PetriNetUnfolder]: For 8234/8318 co-relation queries the response was YES. [2021-03-25 08:03:59,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2385 conditions, 449 events. 0/449 cut-off events. For 8234/8318 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 4700 event pairs, 0 based on Foata normal form. 2/437 useless extension candidates. Maximal degree in co-relation 0. Up to 56 conditions per place. [2021-03-25 08:03:59,229 INFO L142 LiptonReduction]: Number of co-enabled transitions 356 [2021-03-25 08:03:59,234 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:59,234 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:59,234 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-03-25 08:03:59,235 INFO L480 AbstractCegarLoop]: Abstraction has has 160 places, 108 transitions, 2656 flow [2021-03-25 08:03:59,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,235 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:59,235 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:59,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-25 08:03:59,235 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:59,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:59,235 INFO L82 PathProgramCache]: Analyzing trace with hash -162039226, now seen corresponding path program 32 times [2021-03-25 08:03:59,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:59,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540699682] [2021-03-25 08:03:59,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:59,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:59,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:59,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:59,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:59,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:59,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:03:59,262 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:59,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:59,290 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:03:59,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:03:59,305 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:59,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:59,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:59,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540699682] [2021-03-25 08:03:59,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:59,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:59,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237439694] [2021-03-25 08:03:59,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:59,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:59,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:59,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:59,320 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:59,320 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 108 transitions, 2656 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,320 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:59,320 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:59,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:59,403 INFO L129 PetriNetUnfolder]: 10/504 cut-off events. [2021-03-25 08:03:59,403 INFO L130 PetriNetUnfolder]: For 8351/8371 co-relation queries the response was YES. [2021-03-25 08:03:59,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2899 conditions, 504 events. 10/504 cut-off events. For 8351/8371 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 5250 event pairs, 6 based on Foata normal form. 2/497 useless extension candidates. Maximal degree in co-relation 2845. Up to 110 conditions per place. [2021-03-25 08:03:59,405 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 70 selfloop transitions, 56 changer transitions 2/138 dead transitions. [2021-03-25 08:03:59,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 138 transitions, 3568 flow [2021-03-25 08:03:59,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:59,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:59,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:59,406 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:59,406 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:59,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:59,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:59,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:59,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,407 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,407 INFO L185 Difference]: Start difference. First operand has 160 places, 108 transitions, 2656 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:59,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 138 transitions, 3568 flow [2021-03-25 08:03:59,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 138 transitions, 3477 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-03-25 08:03:59,436 INFO L241 Difference]: Finished difference. Result has 167 places, 115 transitions, 2953 flow [2021-03-25 08:03:59,436 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2597, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2953, PETRI_PLACES=167, PETRI_TRANSITIONS=115} [2021-03-25 08:03:59,436 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 135 predicate places. [2021-03-25 08:03:59,436 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:59,436 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 115 transitions, 2953 flow [2021-03-25 08:03:59,436 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 115 transitions, 2953 flow [2021-03-25 08:03:59,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 166 places, 115 transitions, 2953 flow [2021-03-25 08:03:59,506 INFO L129 PetriNetUnfolder]: 0/477 cut-off events. [2021-03-25 08:03:59,506 INFO L130 PetriNetUnfolder]: For 9511/9619 co-relation queries the response was YES. [2021-03-25 08:03:59,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2606 conditions, 477 events. 0/477 cut-off events. For 9511/9619 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 5046 event pairs, 0 based on Foata normal form. 2/466 useless extension candidates. Maximal degree in co-relation 0. Up to 59 conditions per place. [2021-03-25 08:03:59,509 INFO L142 LiptonReduction]: Number of co-enabled transitions 386 [2021-03-25 08:03:59,514 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:59,514 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:59,514 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 78 [2021-03-25 08:03:59,515 INFO L480 AbstractCegarLoop]: Abstraction has has 166 places, 115 transitions, 2953 flow [2021-03-25 08:03:59,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,515 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:59,515 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:59,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-25 08:03:59,515 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:59,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:59,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1065414172, now seen corresponding path program 33 times [2021-03-25 08:03:59,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:59,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763473068] [2021-03-25 08:03:59,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:59,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:59,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:59,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:59,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:59,528 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:03:59,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:03:59,535 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:03:59,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:03:59,546 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:03:59,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:03:59,561 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:59,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:59,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:59,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763473068] [2021-03-25 08:03:59,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:59,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:59,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300864892] [2021-03-25 08:03:59,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:59,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:59,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:59,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:59,576 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:59,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 115 transitions, 2953 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:59,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:59,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:59,661 INFO L129 PetriNetUnfolder]: 10/496 cut-off events. [2021-03-25 08:03:59,661 INFO L130 PetriNetUnfolder]: For 9381/9433 co-relation queries the response was YES. [2021-03-25 08:03:59,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2988 conditions, 496 events. 10/496 cut-off events. For 9381/9433 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 5149 event pairs, 4 based on Foata normal form. 5/491 useless extension candidates. Maximal degree in co-relation 2931. Up to 95 conditions per place. [2021-03-25 08:03:59,663 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 61 selfloop transitions, 52 changer transitions 2/125 dead transitions. [2021-03-25 08:03:59,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 125 transitions, 3357 flow [2021-03-25 08:03:59,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:59,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:59,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:59,664 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:59,664 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:59,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:59,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:59,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:59,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,665 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,665 INFO L185 Difference]: Start difference. First operand has 166 places, 115 transitions, 2953 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:59,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 125 transitions, 3357 flow [2021-03-25 08:03:59,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 125 transitions, 3301 flow, removed 13 selfloop flow, removed 3 redundant places. [2021-03-25 08:03:59,693 INFO L241 Difference]: Finished difference. Result has 171 places, 115 transitions, 3028 flow [2021-03-25 08:03:59,693 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2903, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3028, PETRI_PLACES=171, PETRI_TRANSITIONS=115} [2021-03-25 08:03:59,693 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 139 predicate places. [2021-03-25 08:03:59,693 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:59,693 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 171 places, 115 transitions, 3028 flow [2021-03-25 08:03:59,693 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 171 places, 115 transitions, 3028 flow [2021-03-25 08:03:59,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 169 places, 115 transitions, 3028 flow [2021-03-25 08:03:59,728 INFO L129 PetriNetUnfolder]: 0/472 cut-off events. [2021-03-25 08:03:59,728 INFO L130 PetriNetUnfolder]: For 9980/10081 co-relation queries the response was YES. [2021-03-25 08:03:59,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2649 conditions, 472 events. 0/472 cut-off events. For 9980/10081 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4960 event pairs, 0 based on Foata normal form. 2/461 useless extension candidates. Maximal degree in co-relation 0. Up to 58 conditions per place. [2021-03-25 08:03:59,731 INFO L142 LiptonReduction]: Number of co-enabled transitions 376 [2021-03-25 08:03:59,735 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:59,735 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:59,735 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-03-25 08:03:59,736 INFO L480 AbstractCegarLoop]: Abstraction has has 169 places, 115 transitions, 3028 flow [2021-03-25 08:03:59,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,736 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:59,736 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:59,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-25 08:03:59,736 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:59,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:59,736 INFO L82 PathProgramCache]: Analyzing trace with hash -379426554, now seen corresponding path program 34 times [2021-03-25 08:03:59,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:59,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148295453] [2021-03-25 08:03:59,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:59,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:59,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:59,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:59,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:59,748 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:03:59,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:03:59,754 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:03:59,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:03:59,764 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:59,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:03:59,777 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:03:59,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:03:59,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:03:59,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148295453] [2021-03-25 08:03:59,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:03:59,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:03:59,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217160223] [2021-03-25 08:03:59,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:03:59,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:03:59,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:03:59,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:03:59,792 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:03:59,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 115 transitions, 3028 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:03:59,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:03:59,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:03:59,883 INFO L129 PetriNetUnfolder]: 10/491 cut-off events. [2021-03-25 08:03:59,883 INFO L130 PetriNetUnfolder]: For 9846/9924 co-relation queries the response was YES. [2021-03-25 08:03:59,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3030 conditions, 491 events. 10/491 cut-off events. For 9846/9924 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 5072 event pairs, 4 based on Foata normal form. 12/494 useless extension candidates. Maximal degree in co-relation 2973. Up to 95 conditions per place. [2021-03-25 08:03:59,885 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 61 selfloop transitions, 51 changer transitions 1/123 dead transitions. [2021-03-25 08:03:59,885 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 123 transitions, 3377 flow [2021-03-25 08:03:59,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:03:59,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:03:59,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:03:59,886 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:03:59,886 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:03:59,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:03:59,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:03:59,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:03:59,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,887 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,887 INFO L185 Difference]: Start difference. First operand has 169 places, 115 transitions, 3028 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:03:59,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 123 transitions, 3377 flow [2021-03-25 08:03:59,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 123 transitions, 3262 flow, removed 21 selfloop flow, removed 4 redundant places. [2021-03-25 08:03:59,915 INFO L241 Difference]: Finished difference. Result has 173 places, 115 transitions, 3032 flow [2021-03-25 08:03:59,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2925, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3032, PETRI_PLACES=173, PETRI_TRANSITIONS=115} [2021-03-25 08:03:59,915 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 141 predicate places. [2021-03-25 08:03:59,915 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:03:59,915 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 115 transitions, 3032 flow [2021-03-25 08:03:59,915 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 173 places, 115 transitions, 3032 flow [2021-03-25 08:03:59,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 171 places, 115 transitions, 3032 flow [2021-03-25 08:03:59,949 INFO L129 PetriNetUnfolder]: 0/467 cut-off events. [2021-03-25 08:03:59,950 INFO L130 PetriNetUnfolder]: For 9671/9772 co-relation queries the response was YES. [2021-03-25 08:03:59,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2634 conditions, 467 events. 0/467 cut-off events. For 9671/9772 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 4920 event pairs, 0 based on Foata normal form. 2/456 useless extension candidates. Maximal degree in co-relation 0. Up to 57 conditions per place. [2021-03-25 08:03:59,952 INFO L142 LiptonReduction]: Number of co-enabled transitions 374 [2021-03-25 08:03:59,956 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:03:59,956 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:03:59,957 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-03-25 08:03:59,957 INFO L480 AbstractCegarLoop]: Abstraction has has 171 places, 115 transitions, 3032 flow [2021-03-25 08:03:59,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:03:59,957 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:03:59,957 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:03:59,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-25 08:03:59,957 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:03:59,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:03:59,957 INFO L82 PathProgramCache]: Analyzing trace with hash 413059018, now seen corresponding path program 35 times [2021-03-25 08:03:59,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:03:59,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922337390] [2021-03-25 08:03:59,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:03:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:03:59,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:59,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:03:59,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:03:59,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:03:59,969 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:03:59,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:03:59,976 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:03:59,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:03:59,986 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:03:59,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:00,000 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:00,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:00,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:00,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922337390] [2021-03-25 08:04:00,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:00,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:00,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207451816] [2021-03-25 08:04:00,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:00,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:00,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:00,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:00,017 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:00,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 115 transitions, 3032 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:00,017 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:00,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:00,127 INFO L129 PetriNetUnfolder]: 10/486 cut-off events. [2021-03-25 08:04:00,127 INFO L130 PetriNetUnfolder]: For 9648/9726 co-relation queries the response was YES. [2021-03-25 08:04:00,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3013 conditions, 486 events. 10/486 cut-off events. For 9648/9726 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 5010 event pairs, 4 based on Foata normal form. 12/489 useless extension candidates. Maximal degree in co-relation 2956. Up to 95 conditions per place. [2021-03-25 08:04:00,129 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 61 selfloop transitions, 50 changer transitions 1/122 dead transitions. [2021-03-25 08:04:00,129 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 122 transitions, 3347 flow [2021-03-25 08:04:00,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:00,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:00,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:00,130 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:00,130 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:00,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:00,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:00,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:00,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,131 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,131 INFO L185 Difference]: Start difference. First operand has 171 places, 115 transitions, 3032 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:00,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 122 transitions, 3347 flow [2021-03-25 08:04:00,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 122 transitions, 3286 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-25 08:04:00,162 INFO L241 Difference]: Finished difference. Result has 176 places, 115 transitions, 3075 flow [2021-03-25 08:04:00,163 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2977, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3075, PETRI_PLACES=176, PETRI_TRANSITIONS=115} [2021-03-25 08:04:00,163 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 144 predicate places. [2021-03-25 08:04:00,163 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:00,163 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 176 places, 115 transitions, 3075 flow [2021-03-25 08:04:00,163 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 176 places, 115 transitions, 3075 flow [2021-03-25 08:04:00,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 174 places, 115 transitions, 3075 flow [2021-03-25 08:04:00,204 INFO L129 PetriNetUnfolder]: 0/463 cut-off events. [2021-03-25 08:04:00,204 INFO L130 PetriNetUnfolder]: For 10086/10202 co-relation queries the response was YES. [2021-03-25 08:04:00,204 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2656 conditions, 463 events. 0/463 cut-off events. For 10086/10202 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4843 event pairs, 0 based on Foata normal form. 2/452 useless extension candidates. Maximal degree in co-relation 0. Up to 56 conditions per place. [2021-03-25 08:04:00,208 INFO L142 LiptonReduction]: Number of co-enabled transitions 370 [2021-03-25 08:04:00,212 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:00,213 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:00,213 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-25 08:04:00,213 INFO L480 AbstractCegarLoop]: Abstraction has has 174 places, 115 transitions, 3075 flow [2021-03-25 08:04:00,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,213 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:00,213 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:00,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-25 08:04:00,213 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:00,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:00,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1702322208, now seen corresponding path program 36 times [2021-03-25 08:04:00,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:00,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745323315] [2021-03-25 08:04:00,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:00,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:00,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:00,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:00,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:00,227 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:04:00,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:04:00,234 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:00,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:00,245 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:00,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:00,260 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:00,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:00,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:00,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745323315] [2021-03-25 08:04:00,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:00,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:00,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365944161] [2021-03-25 08:04:00,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:00,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:00,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:00,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:00,276 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:00,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 115 transitions, 3075 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:00,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:00,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:00,369 INFO L129 PetriNetUnfolder]: 10/482 cut-off events. [2021-03-25 08:04:00,369 INFO L130 PetriNetUnfolder]: For 9718/9770 co-relation queries the response was YES. [2021-03-25 08:04:00,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3037 conditions, 482 events. 10/482 cut-off events. For 9718/9770 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4956 event pairs, 4 based on Foata normal form. 5/478 useless extension candidates. Maximal degree in co-relation 2979. Up to 95 conditions per place. [2021-03-25 08:04:00,371 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 60 selfloop transitions, 50 changer transitions 1/121 dead transitions. [2021-03-25 08:04:00,371 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 121 transitions, 3363 flow [2021-03-25 08:04:00,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:00,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:00,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:00,372 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:00,372 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:00,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:00,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:00,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:00,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,373 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,373 INFO L185 Difference]: Start difference. First operand has 174 places, 115 transitions, 3075 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:00,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 121 transitions, 3363 flow [2021-03-25 08:04:00,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 121 transitions, 3223 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:00,401 INFO L241 Difference]: Finished difference. Result has 177 places, 115 transitions, 3052 flow [2021-03-25 08:04:00,401 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2941, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3052, PETRI_PLACES=177, PETRI_TRANSITIONS=115} [2021-03-25 08:04:00,401 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 145 predicate places. [2021-03-25 08:04:00,401 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:00,401 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 177 places, 115 transitions, 3052 flow [2021-03-25 08:04:00,402 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 177 places, 115 transitions, 3052 flow [2021-03-25 08:04:00,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 175 places, 115 transitions, 3052 flow [2021-03-25 08:04:00,437 INFO L129 PetriNetUnfolder]: 0/458 cut-off events. [2021-03-25 08:04:00,437 INFO L130 PetriNetUnfolder]: For 10147/10263 co-relation queries the response was YES. [2021-03-25 08:04:00,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2635 conditions, 458 events. 0/458 cut-off events. For 10147/10263 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 4816 event pairs, 0 based on Foata normal form. 2/451 useless extension candidates. Maximal degree in co-relation 0. Up to 55 conditions per place. [2021-03-25 08:04:00,441 INFO L142 LiptonReduction]: Number of co-enabled transitions 368 [2021-03-25 08:04:00,458 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:00,458 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:00,458 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-25 08:04:00,458 INFO L480 AbstractCegarLoop]: Abstraction has has 175 places, 115 transitions, 3052 flow [2021-03-25 08:04:00,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,459 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:00,459 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:00,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-25 08:04:00,459 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:00,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:00,459 INFO L82 PathProgramCache]: Analyzing trace with hash 729602336, now seen corresponding path program 37 times [2021-03-25 08:04:00,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:00,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300882558] [2021-03-25 08:04:00,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:00,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:00,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:00,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:00,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:00,481 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:00,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:00,492 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:00,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:00,521 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:00,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:00,535 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:00,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:00,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:00,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300882558] [2021-03-25 08:04:00,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:00,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:00,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412874114] [2021-03-25 08:04:00,561 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:00,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:00,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:00,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:00,562 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:00,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 115 transitions, 3052 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:00,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:00,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:00,641 INFO L129 PetriNetUnfolder]: 10/477 cut-off events. [2021-03-25 08:04:00,641 INFO L130 PetriNetUnfolder]: For 9812/9882 co-relation queries the response was YES. [2021-03-25 08:04:00,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3010 conditions, 477 events. 10/477 cut-off events. For 9812/9882 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 4883 event pairs, 4 based on Foata normal form. 7/476 useless extension candidates. Maximal degree in co-relation 2951. Up to 109 conditions per place. [2021-03-25 08:04:00,643 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 71 selfloop transitions, 52 changer transitions 5/138 dead transitions. [2021-03-25 08:04:00,643 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 138 transitions, 3862 flow [2021-03-25 08:04:00,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:00,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:00,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:00,644 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:00,644 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:00,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:00,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:00,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:00,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,645 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,645 INFO L185 Difference]: Start difference. First operand has 175 places, 115 transitions, 3052 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:00,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 138 transitions, 3862 flow [2021-03-25 08:04:00,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 138 transitions, 3760 flow, removed 13 selfloop flow, removed 3 redundant places. [2021-03-25 08:04:00,676 INFO L241 Difference]: Finished difference. Result has 183 places, 120 transitions, 3283 flow [2021-03-25 08:04:00,676 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2974, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3283, PETRI_PLACES=183, PETRI_TRANSITIONS=120} [2021-03-25 08:04:00,676 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 151 predicate places. [2021-03-25 08:04:00,676 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:00,676 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 183 places, 120 transitions, 3283 flow [2021-03-25 08:04:00,676 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 183 places, 120 transitions, 3283 flow [2021-03-25 08:04:00,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 182 places, 120 transitions, 3283 flow [2021-03-25 08:04:00,710 INFO L129 PetriNetUnfolder]: 0/444 cut-off events. [2021-03-25 08:04:00,710 INFO L130 PetriNetUnfolder]: For 10351/10456 co-relation queries the response was YES. [2021-03-25 08:04:00,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2604 conditions, 444 events. 0/444 cut-off events. For 10351/10456 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4600 event pairs, 0 based on Foata normal form. 3/439 useless extension candidates. Maximal degree in co-relation 0. Up to 54 conditions per place. [2021-03-25 08:04:00,713 INFO L142 LiptonReduction]: Number of co-enabled transitions 386 [2021-03-25 08:04:00,717 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:00,717 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:00,717 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-25 08:04:00,717 INFO L480 AbstractCegarLoop]: Abstraction has has 182 places, 120 transitions, 3283 flow [2021-03-25 08:04:00,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,718 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:00,718 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:00,718 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-25 08:04:00,718 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:00,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:00,718 INFO L82 PathProgramCache]: Analyzing trace with hash 2087269092, now seen corresponding path program 38 times [2021-03-25 08:04:00,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:00,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557150547] [2021-03-25 08:04:00,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:00,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:00,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:00,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:00,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:00,734 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:04:00,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:04:00,740 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:00,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:00,749 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:00,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:00,763 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:00,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:00,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:00,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557150547] [2021-03-25 08:04:00,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:00,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:00,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867899884] [2021-03-25 08:04:00,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:00,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:00,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:00,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:00,777 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:00,778 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 120 transitions, 3283 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,778 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:00,778 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:00,778 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:00,872 INFO L129 PetriNetUnfolder]: 10/463 cut-off events. [2021-03-25 08:04:00,873 INFO L130 PetriNetUnfolder]: For 10181/10251 co-relation queries the response was YES. [2021-03-25 08:04:00,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2980 conditions, 463 events. 10/463 cut-off events. For 10181/10251 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4711 event pairs, 4 based on Foata normal form. 8/463 useless extension candidates. Maximal degree in co-relation 2917. Up to 94 conditions per place. [2021-03-25 08:04:00,874 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 62 selfloop transitions, 49 changer transitions 3/124 dead transitions. [2021-03-25 08:04:00,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 124 transitions, 3537 flow [2021-03-25 08:04:00,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:00,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:00,877 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:00,877 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:00,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:00,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:00,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:00,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,879 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,879 INFO L185 Difference]: Start difference. First operand has 182 places, 120 transitions, 3283 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:00,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 124 transitions, 3537 flow [2021-03-25 08:04:00,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 124 transitions, 3453 flow, removed 27 selfloop flow, removed 3 redundant places. [2021-03-25 08:04:00,912 INFO L241 Difference]: Finished difference. Result has 186 places, 117 transitions, 3201 flow [2021-03-25 08:04:00,912 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3205, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3201, PETRI_PLACES=186, PETRI_TRANSITIONS=117} [2021-03-25 08:04:00,912 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 154 predicate places. [2021-03-25 08:04:00,912 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:00,912 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 186 places, 117 transitions, 3201 flow [2021-03-25 08:04:00,912 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 186 places, 117 transitions, 3201 flow [2021-03-25 08:04:00,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 184 places, 117 transitions, 3201 flow [2021-03-25 08:04:00,957 INFO L129 PetriNetUnfolder]: 0/431 cut-off events. [2021-03-25 08:04:00,958 INFO L130 PetriNetUnfolder]: For 9819/9923 co-relation queries the response was YES. [2021-03-25 08:04:00,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2528 conditions, 431 events. 0/431 cut-off events. For 9819/9923 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4427 event pairs, 0 based on Foata normal form. 1/426 useless extension candidates. Maximal degree in co-relation 0. Up to 53 conditions per place. [2021-03-25 08:04:00,960 INFO L142 LiptonReduction]: Number of co-enabled transitions 366 [2021-03-25 08:04:00,964 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:00,964 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:00,964 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-03-25 08:04:00,965 INFO L480 AbstractCegarLoop]: Abstraction has has 184 places, 117 transitions, 3201 flow [2021-03-25 08:04:00,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:00,965 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:00,965 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:00,966 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-25 08:04:00,966 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:00,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:00,966 INFO L82 PathProgramCache]: Analyzing trace with hash -709222330, now seen corresponding path program 39 times [2021-03-25 08:04:00,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:00,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903762913] [2021-03-25 08:04:00,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:00,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:00,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:00,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:00,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:00,978 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:00,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:00,990 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:00,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:01,001 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:01,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:01,015 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:01,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:01,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:01,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903762913] [2021-03-25 08:04:01,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:01,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:01,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735436952] [2021-03-25 08:04:01,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:01,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:01,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:01,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:01,031 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:01,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 117 transitions, 3201 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,031 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:01,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:01,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:01,121 INFO L129 PetriNetUnfolder]: 10/450 cut-off events. [2021-03-25 08:04:01,121 INFO L130 PetriNetUnfolder]: For 9608/9641 co-relation queries the response was YES. [2021-03-25 08:04:01,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2901 conditions, 450 events. 10/450 cut-off events. For 9608/9641 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4537 event pairs, 4 based on Foata normal form. 5/449 useless extension candidates. Maximal degree in co-relation 2839. Up to 104 conditions per place. [2021-03-25 08:04:01,123 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 64 selfloop transitions, 52 changer transitions 2/128 dead transitions. [2021-03-25 08:04:01,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 128 transitions, 3667 flow [2021-03-25 08:04:01,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:01,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:01,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:01,124 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:01,124 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:01,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:01,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:01,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:01,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,126 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,126 INFO L185 Difference]: Start difference. First operand has 184 places, 117 transitions, 3201 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:01,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 128 transitions, 3667 flow [2021-03-25 08:04:01,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 128 transitions, 3566 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:01,158 INFO L241 Difference]: Finished difference. Result has 187 places, 121 transitions, 3376 flow [2021-03-25 08:04:01,158 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3111, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3376, PETRI_PLACES=187, PETRI_TRANSITIONS=121} [2021-03-25 08:04:01,159 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 155 predicate places. [2021-03-25 08:04:01,159 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:01,159 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 187 places, 121 transitions, 3376 flow [2021-03-25 08:04:01,159 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 187 places, 121 transitions, 3376 flow [2021-03-25 08:04:01,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 186 places, 121 transitions, 3376 flow [2021-03-25 08:04:01,191 INFO L129 PetriNetUnfolder]: 0/426 cut-off events. [2021-03-25 08:04:01,192 INFO L130 PetriNetUnfolder]: For 9998/10100 co-relation queries the response was YES. [2021-03-25 08:04:01,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2539 conditions, 426 events. 0/426 cut-off events. For 9998/10100 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4349 event pairs, 0 based on Foata normal form. 1/423 useless extension candidates. Maximal degree in co-relation 0. Up to 52 conditions per place. [2021-03-25 08:04:01,194 INFO L142 LiptonReduction]: Number of co-enabled transitions 366 [2021-03-25 08:04:01,198 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:01,198 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:01,198 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-25 08:04:01,198 INFO L480 AbstractCegarLoop]: Abstraction has has 186 places, 121 transitions, 3376 flow [2021-03-25 08:04:01,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,198 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:01,199 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:01,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-25 08:04:01,199 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:01,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:01,199 INFO L82 PathProgramCache]: Analyzing trace with hash 2107271776, now seen corresponding path program 40 times [2021-03-25 08:04:01,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:01,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479642011] [2021-03-25 08:04:01,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:01,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:01,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:01,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:01,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:01,220 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:01,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:01,231 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:01,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:01,242 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:01,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:01,256 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:01,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:01,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:01,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479642011] [2021-03-25 08:04:01,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:01,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:01,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461121995] [2021-03-25 08:04:01,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:01,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:01,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:01,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:01,271 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:01,272 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 121 transitions, 3376 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,272 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:01,272 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:01,272 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:01,349 INFO L129 PetriNetUnfolder]: 10/445 cut-off events. [2021-03-25 08:04:01,349 INFO L130 PetriNetUnfolder]: For 9807/9840 co-relation queries the response was YES. [2021-03-25 08:04:01,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2911 conditions, 445 events. 10/445 cut-off events. For 9807/9840 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4459 event pairs, 4 based on Foata normal form. 5/445 useless extension candidates. Maximal degree in co-relation 2850. Up to 104 conditions per place. [2021-03-25 08:04:01,351 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 64 selfloop transitions, 49 changer transitions 3/126 dead transitions. [2021-03-25 08:04:01,351 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 126 transitions, 3648 flow [2021-03-25 08:04:01,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:01,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:01,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:01,351 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:01,351 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:01,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:01,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:01,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:01,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,352 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,352 INFO L185 Difference]: Start difference. First operand has 186 places, 121 transitions, 3376 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:01,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 126 transitions, 3648 flow [2021-03-25 08:04:01,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 126 transitions, 3558 flow, removed 10 selfloop flow, removed 3 redundant places. [2021-03-25 08:04:01,383 INFO L241 Difference]: Finished difference. Result has 190 places, 118 transitions, 3298 flow [2021-03-25 08:04:01,383 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3292, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3298, PETRI_PLACES=190, PETRI_TRANSITIONS=118} [2021-03-25 08:04:01,384 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 158 predicate places. [2021-03-25 08:04:01,384 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:01,384 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 118 transitions, 3298 flow [2021-03-25 08:04:01,384 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 118 transitions, 3298 flow [2021-03-25 08:04:01,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 189 places, 118 transitions, 3298 flow [2021-03-25 08:04:01,415 INFO L129 PetriNetUnfolder]: 0/417 cut-off events. [2021-03-25 08:04:01,415 INFO L130 PetriNetUnfolder]: For 9745/9847 co-relation queries the response was YES. [2021-03-25 08:04:01,415 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2504 conditions, 417 events. 0/417 cut-off events. For 9745/9847 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4252 event pairs, 0 based on Foata normal form. 1/414 useless extension candidates. Maximal degree in co-relation 0. Up to 51 conditions per place. [2021-03-25 08:04:01,418 INFO L142 LiptonReduction]: Number of co-enabled transitions 346 [2021-03-25 08:04:01,421 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:01,421 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:01,422 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-03-25 08:04:01,422 INFO L480 AbstractCegarLoop]: Abstraction has has 189 places, 118 transitions, 3298 flow [2021-03-25 08:04:01,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,422 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:01,422 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:01,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-25 08:04:01,422 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:01,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:01,422 INFO L82 PathProgramCache]: Analyzing trace with hash 465414300, now seen corresponding path program 41 times [2021-03-25 08:04:01,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:01,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184643795] [2021-03-25 08:04:01,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:01,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:01,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:01,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:01,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:01,435 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:01,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:01,452 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:01,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:01,467 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:01,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:01,481 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:01,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:01,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:01,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184643795] [2021-03-25 08:04:01,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:01,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:01,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142599048] [2021-03-25 08:04:01,495 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:01,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:01,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:01,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:01,495 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:01,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 118 transitions, 3298 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:01,495 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:01,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:01,569 INFO L129 PetriNetUnfolder]: 10/436 cut-off events. [2021-03-25 08:04:01,569 INFO L130 PetriNetUnfolder]: For 9644/9677 co-relation queries the response was YES. [2021-03-25 08:04:01,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2874 conditions, 436 events. 10/436 cut-off events. For 9644/9677 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4316 event pairs, 4 based on Foata normal form. 5/436 useless extension candidates. Maximal degree in co-relation 2813. Up to 104 conditions per place. [2021-03-25 08:04:01,571 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 66 selfloop transitions, 46 changer transitions 3/125 dead transitions. [2021-03-25 08:04:01,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 125 transitions, 3648 flow [2021-03-25 08:04:01,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:01,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:01,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:04:01,572 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:04:01,572 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:04:01,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:04:01,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:01,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:04:01,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,573 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,573 INFO L185 Difference]: Start difference. First operand has 189 places, 118 transitions, 3298 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:04:01,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 125 transitions, 3648 flow [2021-03-25 08:04:01,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 125 transitions, 3546 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-25 08:04:01,603 INFO L241 Difference]: Finished difference. Result has 193 places, 117 transitions, 3302 flow [2021-03-25 08:04:01,603 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3204, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3302, PETRI_PLACES=193, PETRI_TRANSITIONS=117} [2021-03-25 08:04:01,603 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 161 predicate places. [2021-03-25 08:04:01,604 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:01,604 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 193 places, 117 transitions, 3302 flow [2021-03-25 08:04:01,604 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 193 places, 117 transitions, 3302 flow [2021-03-25 08:04:01,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 191 places, 117 transitions, 3302 flow [2021-03-25 08:04:01,634 INFO L129 PetriNetUnfolder]: 0/408 cut-off events. [2021-03-25 08:04:01,634 INFO L130 PetriNetUnfolder]: For 9808/9920 co-relation queries the response was YES. [2021-03-25 08:04:01,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2461 conditions, 408 events. 0/408 cut-off events. For 9808/9920 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4121 event pairs, 0 based on Foata normal form. 2/404 useless extension candidates. Maximal degree in co-relation 0. Up to 50 conditions per place. [2021-03-25 08:04:01,637 INFO L142 LiptonReduction]: Number of co-enabled transitions 336 [2021-03-25 08:04:01,640 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:01,640 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:01,641 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-25 08:04:01,641 INFO L480 AbstractCegarLoop]: Abstraction has has 191 places, 117 transitions, 3302 flow [2021-03-25 08:04:01,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,641 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:01,641 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:01,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-25 08:04:01,641 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:01,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:01,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1757922050, now seen corresponding path program 42 times [2021-03-25 08:04:01,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:01,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122201076] [2021-03-25 08:04:01,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:01,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:01,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:01,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:01,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:01,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:01,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:01,660 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:01,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:01,678 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:01,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:01,692 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:01,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:01,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:01,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122201076] [2021-03-25 08:04:01,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:01,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:01,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937376698] [2021-03-25 08:04:01,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:01,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:01,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:01,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:01,706 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:01,706 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 117 transitions, 3302 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,706 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:01,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:01,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:01,833 INFO L129 PetriNetUnfolder]: 4/538 cut-off events. [2021-03-25 08:04:01,833 INFO L130 PetriNetUnfolder]: For 12020/12057 co-relation queries the response was YES. [2021-03-25 08:04:01,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3453 conditions, 538 events. 4/538 cut-off events. For 12020/12057 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 5721 event pairs, 4 based on Foata normal form. 6/538 useless extension candidates. Maximal degree in co-relation 3391. Up to 118 conditions per place. [2021-03-25 08:04:01,835 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 86 selfloop transitions, 52 changer transitions 2/150 dead transitions. [2021-03-25 08:04:01,835 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 150 transitions, 4567 flow [2021-03-25 08:04:01,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:01,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:01,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:01,836 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:01,836 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:01,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:01,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:01,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:01,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,840 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,840 INFO L185 Difference]: Start difference. First operand has 191 places, 117 transitions, 3302 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:01,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 150 transitions, 4567 flow [2021-03-25 08:04:01,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 150 transitions, 4431 flow, removed 11 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:01,877 INFO L241 Difference]: Finished difference. Result has 197 places, 128 transitions, 3746 flow [2021-03-25 08:04:01,877 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3202, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3746, PETRI_PLACES=197, PETRI_TRANSITIONS=128} [2021-03-25 08:04:01,877 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 165 predicate places. [2021-03-25 08:04:01,877 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:01,877 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 197 places, 128 transitions, 3746 flow [2021-03-25 08:04:01,877 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 197 places, 128 transitions, 3746 flow [2021-03-25 08:04:01,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 196 places, 128 transitions, 3746 flow [2021-03-25 08:04:01,920 INFO L129 PetriNetUnfolder]: 0/523 cut-off events. [2021-03-25 08:04:01,920 INFO L130 PetriNetUnfolder]: For 12508/12539 co-relation queries the response was YES. [2021-03-25 08:04:01,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3161 conditions, 523 events. 0/523 cut-off events. For 12508/12539 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5626 event pairs, 0 based on Foata normal form. 0/515 useless extension candidates. Maximal degree in co-relation 0. Up to 63 conditions per place. [2021-03-25 08:04:01,924 INFO L142 LiptonReduction]: Number of co-enabled transitions 340 [2021-03-25 08:04:01,928 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:01,928 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:01,928 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-03-25 08:04:01,928 INFO L480 AbstractCegarLoop]: Abstraction has has 196 places, 128 transitions, 3746 flow [2021-03-25 08:04:01,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,929 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:01,929 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:01,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-25 08:04:01,929 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:01,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:01,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1188715296, now seen corresponding path program 43 times [2021-03-25 08:04:01,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:01,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063271452] [2021-03-25 08:04:01,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:01,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:01,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:01,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:01,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:01,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:01,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:01,948 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:01,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:01,965 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:01,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:01,979 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:01,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:01,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:01,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063271452] [2021-03-25 08:04:01,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:01,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:01,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395898980] [2021-03-25 08:04:01,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:01,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:01,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:01,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:01,994 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:01,994 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 128 transitions, 3746 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:01,994 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:01,994 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:01,994 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:02,091 INFO L129 PetriNetUnfolder]: 4/530 cut-off events. [2021-03-25 08:04:02,091 INFO L130 PetriNetUnfolder]: For 12574/12630 co-relation queries the response was YES. [2021-03-25 08:04:02,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3462 conditions, 530 events. 4/530 cut-off events. For 12574/12630 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5589 event pairs, 1 based on Foata normal form. 1/525 useless extension candidates. Maximal degree in co-relation 3397. Up to 115 conditions per place. [2021-03-25 08:04:02,093 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 96 selfloop transitions, 50 changer transitions 2/158 dead transitions. [2021-03-25 08:04:02,093 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 158 transitions, 4842 flow [2021-03-25 08:04:02,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:02,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:02,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:02,096 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:02,096 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:02,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:02,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:02,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:02,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,097 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,097 INFO L185 Difference]: Start difference. First operand has 196 places, 128 transitions, 3746 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:02,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 158 transitions, 4842 flow [2021-03-25 08:04:02,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 158 transitions, 4760 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-03-25 08:04:02,138 INFO L241 Difference]: Finished difference. Result has 203 places, 139 transitions, 4193 flow [2021-03-25 08:04:02,139 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3685, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4193, PETRI_PLACES=203, PETRI_TRANSITIONS=139} [2021-03-25 08:04:02,139 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 171 predicate places. [2021-03-25 08:04:02,139 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:02,139 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 139 transitions, 4193 flow [2021-03-25 08:04:02,139 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 139 transitions, 4193 flow [2021-03-25 08:04:02,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 202 places, 139 transitions, 4193 flow [2021-03-25 08:04:02,186 INFO L129 PetriNetUnfolder]: 0/515 cut-off events. [2021-03-25 08:04:02,186 INFO L130 PetriNetUnfolder]: For 13222/13255 co-relation queries the response was YES. [2021-03-25 08:04:02,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3211 conditions, 515 events. 0/515 cut-off events. For 13222/13255 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 5510 event pairs, 0 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 0. Up to 62 conditions per place. [2021-03-25 08:04:02,190 INFO L142 LiptonReduction]: Number of co-enabled transitions 360 [2021-03-25 08:04:02,194 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:02,195 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:02,195 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 56 [2021-03-25 08:04:02,195 INFO L480 AbstractCegarLoop]: Abstraction has has 202 places, 139 transitions, 4193 flow [2021-03-25 08:04:02,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,195 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:02,195 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:02,195 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-25 08:04:02,195 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:02,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:02,196 INFO L82 PathProgramCache]: Analyzing trace with hash -957488872, now seen corresponding path program 44 times [2021-03-25 08:04:02,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:02,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956812706] [2021-03-25 08:04:02,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:02,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:02,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:02,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:02,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:02,207 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:02,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:02,219 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:02,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:02,237 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:02,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:02,251 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:02,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:02,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:02,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956812706] [2021-03-25 08:04:02,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:02,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:02,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448248472] [2021-03-25 08:04:02,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:02,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:02,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:02,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:02,266 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:02,266 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 139 transitions, 4193 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:02,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:02,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:02,371 INFO L129 PetriNetUnfolder]: 4/522 cut-off events. [2021-03-25 08:04:02,371 INFO L130 PetriNetUnfolder]: For 13409/13475 co-relation queries the response was YES. [2021-03-25 08:04:02,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3511 conditions, 522 events. 4/522 cut-off events. For 13409/13475 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 5500 event pairs, 4 based on Foata normal form. 8/525 useless extension candidates. Maximal degree in co-relation 3443. Up to 117 conditions per place. [2021-03-25 08:04:02,373 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 70 selfloop transitions, 64 changer transitions 2/146 dead transitions. [2021-03-25 08:04:02,373 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 146 transitions, 4594 flow [2021-03-25 08:04:02,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:02,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:02,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:02,374 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:02,374 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:02,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:02,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:02,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:02,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,375 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,375 INFO L185 Difference]: Start difference. First operand has 202 places, 139 transitions, 4193 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:02,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 146 transitions, 4594 flow [2021-03-25 08:04:02,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 146 transitions, 4553 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-03-25 08:04:02,418 INFO L241 Difference]: Finished difference. Result has 208 places, 140 transitions, 4351 flow [2021-03-25 08:04:02,419 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4159, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4351, PETRI_PLACES=208, PETRI_TRANSITIONS=140} [2021-03-25 08:04:02,419 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 176 predicate places. [2021-03-25 08:04:02,419 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:02,419 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 208 places, 140 transitions, 4351 flow [2021-03-25 08:04:02,419 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 208 places, 140 transitions, 4351 flow [2021-03-25 08:04:02,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 207 places, 140 transitions, 4351 flow [2021-03-25 08:04:02,468 INFO L129 PetriNetUnfolder]: 0/507 cut-off events. [2021-03-25 08:04:02,468 INFO L130 PetriNetUnfolder]: For 13821/13860 co-relation queries the response was YES. [2021-03-25 08:04:02,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3243 conditions, 507 events. 0/507 cut-off events. For 13821/13860 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 5386 event pairs, 0 based on Foata normal form. 0/499 useless extension candidates. Maximal degree in co-relation 0. Up to 61 conditions per place. [2021-03-25 08:04:02,472 INFO L142 LiptonReduction]: Number of co-enabled transitions 354 [2021-03-25 08:04:02,478 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:02,478 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:02,478 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59 [2021-03-25 08:04:02,478 INFO L480 AbstractCegarLoop]: Abstraction has has 207 places, 140 transitions, 4351 flow [2021-03-25 08:04:02,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,478 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:02,478 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:02,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-25 08:04:02,478 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:02,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:02,479 INFO L82 PathProgramCache]: Analyzing trace with hash 2003101314, now seen corresponding path program 45 times [2021-03-25 08:04:02,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:02,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328370444] [2021-03-25 08:04:02,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:02,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:02,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:02,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:02,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:02,498 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:02,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:02,509 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:02,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:02,526 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:02,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:02,540 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:02,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:02,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:02,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328370444] [2021-03-25 08:04:02,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:02,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:02,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511890080] [2021-03-25 08:04:02,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:02,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:02,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:02,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:02,555 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:02,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 140 transitions, 4351 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:02,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:02,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:02,655 INFO L129 PetriNetUnfolder]: 4/514 cut-off events. [2021-03-25 08:04:02,656 INFO L130 PetriNetUnfolder]: For 14037/14120 co-relation queries the response was YES. [2021-03-25 08:04:02,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3540 conditions, 514 events. 4/514 cut-off events. For 14037/14120 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 5378 event pairs, 4 based on Foata normal form. 11/520 useless extension candidates. Maximal degree in co-relation 3471. Up to 117 conditions per place. [2021-03-25 08:04:02,658 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 69 selfloop transitions, 61 changer transitions 3/143 dead transitions. [2021-03-25 08:04:02,658 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 143 transitions, 4648 flow [2021-03-25 08:04:02,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:02,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:02,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:04:02,659 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:04:02,659 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:04:02,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:04:02,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:02,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:04:02,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,660 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,660 INFO L185 Difference]: Start difference. First operand has 207 places, 140 transitions, 4351 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:04:02,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 143 transitions, 4648 flow [2021-03-25 08:04:02,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 143 transitions, 4546 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-25 08:04:02,717 INFO L241 Difference]: Finished difference. Result has 212 places, 138 transitions, 4313 flow [2021-03-25 08:04:02,717 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4253, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4313, PETRI_PLACES=212, PETRI_TRANSITIONS=138} [2021-03-25 08:04:02,718 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 180 predicate places. [2021-03-25 08:04:02,718 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:02,718 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 212 places, 138 transitions, 4313 flow [2021-03-25 08:04:02,718 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 212 places, 138 transitions, 4313 flow [2021-03-25 08:04:02,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 210 places, 138 transitions, 4313 flow [2021-03-25 08:04:02,761 INFO L129 PetriNetUnfolder]: 0/497 cut-off events. [2021-03-25 08:04:02,761 INFO L130 PetriNetUnfolder]: For 13529/13561 co-relation queries the response was YES. [2021-03-25 08:04:02,761 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3209 conditions, 497 events. 0/497 cut-off events. For 13529/13561 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 5246 event pairs, 0 based on Foata normal form. 0/490 useless extension candidates. Maximal degree in co-relation 0. Up to 60 conditions per place. [2021-03-25 08:04:02,764 INFO L142 LiptonReduction]: Number of co-enabled transitions 350 [2021-03-25 08:04:02,769 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:02,769 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:02,769 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-03-25 08:04:02,769 INFO L480 AbstractCegarLoop]: Abstraction has has 210 places, 138 transitions, 4313 flow [2021-03-25 08:04:02,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,769 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:02,769 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:02,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-25 08:04:02,769 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:02,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:02,770 INFO L82 PathProgramCache]: Analyzing trace with hash 704895976, now seen corresponding path program 46 times [2021-03-25 08:04:02,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:02,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771481063] [2021-03-25 08:04:02,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:02,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:02,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:02,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:02,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:02,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:02,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:02,787 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:02,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:02,798 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:02,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:02,812 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:02,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:02,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:02,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771481063] [2021-03-25 08:04:02,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:02,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:02,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144340210] [2021-03-25 08:04:02,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:02,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:02,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:02,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:02,827 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:02,827 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 138 transitions, 4313 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,827 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:02,827 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:02,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:02,918 INFO L129 PetriNetUnfolder]: 4/504 cut-off events. [2021-03-25 08:04:02,918 INFO L130 PetriNetUnfolder]: For 13719/13776 co-relation queries the response was YES. [2021-03-25 08:04:02,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3501 conditions, 504 events. 4/504 cut-off events. For 13719/13776 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 5265 event pairs, 4 based on Foata normal form. 7/506 useless extension candidates. Maximal degree in co-relation 3431. Up to 115 conditions per place. [2021-03-25 08:04:02,920 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 81 selfloop transitions, 57 changer transitions 2/150 dead transitions. [2021-03-25 08:04:02,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 150 transitions, 4881 flow [2021-03-25 08:04:02,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:02,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:02,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:02,921 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:02,921 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:02,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:02,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:02,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:02,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,922 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:02,922 INFO L185 Difference]: Start difference. First operand has 210 places, 138 transitions, 4313 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:02,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 150 transitions, 4881 flow [2021-03-25 08:04:02,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 150 transitions, 4743 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:02,971 INFO L241 Difference]: Finished difference. Result has 214 places, 140 transitions, 4392 flow [2021-03-25 08:04:02,971 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4185, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4392, PETRI_PLACES=214, PETRI_TRANSITIONS=140} [2021-03-25 08:04:02,971 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 182 predicate places. [2021-03-25 08:04:02,971 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:02,972 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 214 places, 140 transitions, 4392 flow [2021-03-25 08:04:02,972 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 214 places, 140 transitions, 4392 flow [2021-03-25 08:04:02,973 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 213 places, 140 transitions, 4392 flow [2021-03-25 08:04:03,013 INFO L129 PetriNetUnfolder]: 0/489 cut-off events. [2021-03-25 08:04:03,013 INFO L130 PetriNetUnfolder]: For 13623/13654 co-relation queries the response was YES. [2021-03-25 08:04:03,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3184 conditions, 489 events. 0/489 cut-off events. For 13623/13654 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 5169 event pairs, 0 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 0. Up to 59 conditions per place. [2021-03-25 08:04:03,016 INFO L142 LiptonReduction]: Number of co-enabled transitions 358 [2021-03-25 08:04:03,021 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:03,021 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:03,021 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-25 08:04:03,022 INFO L480 AbstractCegarLoop]: Abstraction has has 213 places, 140 transitions, 4392 flow [2021-03-25 08:04:03,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,022 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:03,022 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:03,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-25 08:04:03,022 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:03,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:03,022 INFO L82 PathProgramCache]: Analyzing trace with hash -2031431656, now seen corresponding path program 47 times [2021-03-25 08:04:03,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:03,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45790897] [2021-03-25 08:04:03,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:03,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:03,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:03,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:03,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:03,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:03,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:03,040 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:03,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:03,052 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:03,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:03,066 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:03,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:03,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45790897] [2021-03-25 08:04:03,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:03,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:03,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220427383] [2021-03-25 08:04:03,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:03,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:03,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:03,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:03,080 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:03,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 140 transitions, 4392 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:03,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:03,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:03,182 INFO L129 PetriNetUnfolder]: 4/496 cut-off events. [2021-03-25 08:04:03,182 INFO L130 PetriNetUnfolder]: For 13821/13878 co-relation queries the response was YES. [2021-03-25 08:04:03,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3473 conditions, 496 events. 4/496 cut-off events. For 13821/13878 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 5175 event pairs, 4 based on Foata normal form. 7/498 useless extension candidates. Maximal degree in co-relation 3402. Up to 115 conditions per place. [2021-03-25 08:04:03,184 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 80 selfloop transitions, 54 changer transitions 3/147 dead transitions. [2021-03-25 08:04:03,184 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 147 transitions, 4827 flow [2021-03-25 08:04:03,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:03,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:03,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:04:03,185 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:04:03,185 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:04:03,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:04:03,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:03,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:04:03,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,186 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,186 INFO L185 Difference]: Start difference. First operand has 213 places, 140 transitions, 4392 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:04:03,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 147 transitions, 4827 flow [2021-03-25 08:04:03,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 147 transitions, 4740 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-25 08:04:03,233 INFO L241 Difference]: Finished difference. Result has 218 places, 138 transitions, 4360 flow [2021-03-25 08:04:03,234 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4309, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4360, PETRI_PLACES=218, PETRI_TRANSITIONS=138} [2021-03-25 08:04:03,234 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 186 predicate places. [2021-03-25 08:04:03,234 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:03,234 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 218 places, 138 transitions, 4360 flow [2021-03-25 08:04:03,234 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 218 places, 138 transitions, 4360 flow [2021-03-25 08:04:03,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 216 places, 138 transitions, 4360 flow [2021-03-25 08:04:03,278 INFO L129 PetriNetUnfolder]: 0/480 cut-off events. [2021-03-25 08:04:03,278 INFO L130 PetriNetUnfolder]: For 13526/13557 co-relation queries the response was YES. [2021-03-25 08:04:03,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3158 conditions, 480 events. 0/480 cut-off events. For 13526/13557 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5046 event pairs, 0 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 0. Up to 58 conditions per place. [2021-03-25 08:04:03,281 INFO L142 LiptonReduction]: Number of co-enabled transitions 354 [2021-03-25 08:04:03,287 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:03,287 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:03,287 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 53 [2021-03-25 08:04:03,287 INFO L480 AbstractCegarLoop]: Abstraction has has 216 places, 138 transitions, 4360 flow [2021-03-25 08:04:03,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,288 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:03,288 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:03,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-25 08:04:03,288 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:03,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:03,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1086420380, now seen corresponding path program 48 times [2021-03-25 08:04:03,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:03,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172630814] [2021-03-25 08:04:03,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:03,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:03,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:03,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:03,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:03,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:03,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:03,306 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:03,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:03,321 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:03,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:03,336 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:03,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:03,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:03,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172630814] [2021-03-25 08:04:03,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:03,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:03,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080259429] [2021-03-25 08:04:03,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:03,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:03,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:03,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:03,350 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:03,350 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 138 transitions, 4360 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,351 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:03,351 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:03,351 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:03,448 INFO L129 PetriNetUnfolder]: 4/487 cut-off events. [2021-03-25 08:04:03,448 INFO L130 PetriNetUnfolder]: For 13711/13766 co-relation queries the response was YES. [2021-03-25 08:04:03,449 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3443 conditions, 487 events. 4/487 cut-off events. For 13711/13766 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5035 event pairs, 4 based on Foata normal form. 6/488 useless extension candidates. Maximal degree in co-relation 3371. Up to 115 conditions per place. [2021-03-25 08:04:03,450 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 72 selfloop transitions, 60 changer transitions 3/145 dead transitions. [2021-03-25 08:04:03,450 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 145 transitions, 4766 flow [2021-03-25 08:04:03,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:03,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:03,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:03,452 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:03,452 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:03,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:03,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:03,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:03,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,453 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,453 INFO L185 Difference]: Start difference. First operand has 216 places, 138 transitions, 4360 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:03,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 145 transitions, 4766 flow [2021-03-25 08:04:03,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 145 transitions, 4648 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:03,499 INFO L241 Difference]: Finished difference. Result has 218 places, 135 transitions, 4266 flow [2021-03-25 08:04:03,499 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4248, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4266, PETRI_PLACES=218, PETRI_TRANSITIONS=135} [2021-03-25 08:04:03,499 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 186 predicate places. [2021-03-25 08:04:03,499 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:03,499 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 218 places, 135 transitions, 4266 flow [2021-03-25 08:04:03,499 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 218 places, 135 transitions, 4266 flow [2021-03-25 08:04:03,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 216 places, 135 transitions, 4266 flow [2021-03-25 08:04:03,562 INFO L129 PetriNetUnfolder]: 0/471 cut-off events. [2021-03-25 08:04:03,563 INFO L130 PetriNetUnfolder]: For 13142/13173 co-relation queries the response was YES. [2021-03-25 08:04:03,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3104 conditions, 471 events. 0/471 cut-off events. For 13142/13173 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4925 event pairs, 0 based on Foata normal form. 0/464 useless extension candidates. Maximal degree in co-relation 0. Up to 57 conditions per place. [2021-03-25 08:04:03,565 INFO L142 LiptonReduction]: Number of co-enabled transitions 342 [2021-03-25 08:04:03,569 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:03,569 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:03,570 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-25 08:04:03,570 INFO L480 AbstractCegarLoop]: Abstraction has has 216 places, 135 transitions, 4266 flow [2021-03-25 08:04:03,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,570 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:03,570 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:03,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-25 08:04:03,570 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:03,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:03,570 INFO L82 PathProgramCache]: Analyzing trace with hash -203140674, now seen corresponding path program 49 times [2021-03-25 08:04:03,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:03,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897150670] [2021-03-25 08:04:03,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:03,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:03,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:03,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:03,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:03,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:03,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:03,587 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:03,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:03,597 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:03,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:03,610 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:03,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:03,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:03,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897150670] [2021-03-25 08:04:03,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:03,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:03,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907835199] [2021-03-25 08:04:03,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:03,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:03,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:03,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:03,624 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:03,624 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 135 transitions, 4266 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,624 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:03,625 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:03,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:03,731 INFO L129 PetriNetUnfolder]: 4/478 cut-off events. [2021-03-25 08:04:03,731 INFO L130 PetriNetUnfolder]: For 13283/13334 co-relation queries the response was YES. [2021-03-25 08:04:03,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3385 conditions, 478 events. 4/478 cut-off events. For 13283/13334 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4917 event pairs, 4 based on Foata normal form. 6/479 useless extension candidates. Maximal degree in co-relation 3314. Up to 115 conditions per place. [2021-03-25 08:04:03,733 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 72 selfloop transitions, 58 changer transitions 2/142 dead transitions. [2021-03-25 08:04:03,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 142 transitions, 4666 flow [2021-03-25 08:04:03,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:03,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:03,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:03,734 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:03,734 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:03,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:03,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:03,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:03,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,735 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,735 INFO L185 Difference]: Start difference. First operand has 216 places, 135 transitions, 4266 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:03,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 142 transitions, 4666 flow [2021-03-25 08:04:03,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 142 transitions, 4558 flow, removed 11 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:03,797 INFO L241 Difference]: Finished difference. Result has 218 places, 137 transitions, 4354 flow [2021-03-25 08:04:03,797 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4164, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4354, PETRI_PLACES=218, PETRI_TRANSITIONS=137} [2021-03-25 08:04:03,797 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 186 predicate places. [2021-03-25 08:04:03,797 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:03,797 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 218 places, 137 transitions, 4354 flow [2021-03-25 08:04:03,797 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 218 places, 137 transitions, 4354 flow [2021-03-25 08:04:03,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 216 places, 137 transitions, 4354 flow [2021-03-25 08:04:03,883 INFO L129 PetriNetUnfolder]: 0/465 cut-off events. [2021-03-25 08:04:03,883 INFO L130 PetriNetUnfolder]: For 12990/13018 co-relation queries the response was YES. [2021-03-25 08:04:03,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3095 conditions, 465 events. 0/465 cut-off events. For 12990/13018 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4847 event pairs, 0 based on Foata normal form. 0/462 useless extension candidates. Maximal degree in co-relation 0. Up to 56 conditions per place. [2021-03-25 08:04:03,886 INFO L142 LiptonReduction]: Number of co-enabled transitions 338 [2021-03-25 08:04:03,891 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:03,891 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:03,891 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 94 [2021-03-25 08:04:03,891 INFO L480 AbstractCegarLoop]: Abstraction has has 216 places, 137 transitions, 4354 flow [2021-03-25 08:04:03,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,893 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:03,893 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:03,893 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-25 08:04:03,893 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:03,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:03,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1062376156, now seen corresponding path program 50 times [2021-03-25 08:04:03,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:03,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335222526] [2021-03-25 08:04:03,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:03,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:03,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:03,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:03,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:03,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:03,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:03,911 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:03,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:03,920 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:03,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:03,934 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:03,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:03,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:03,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335222526] [2021-03-25 08:04:03,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:03,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:03,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405810623] [2021-03-25 08:04:03,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:03,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:03,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:03,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:03,948 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:03,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 137 transitions, 4354 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:03,949 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:03,949 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:03,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:04,035 INFO L129 PetriNetUnfolder]: 4/472 cut-off events. [2021-03-25 08:04:04,036 INFO L130 PetriNetUnfolder]: For 13156/13209 co-relation queries the response was YES. [2021-03-25 08:04:04,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3373 conditions, 472 events. 4/472 cut-off events. For 13156/13209 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4835 event pairs, 4 based on Foata normal form. 7/474 useless extension candidates. Maximal degree in co-relation 3304. Up to 115 conditions per place. [2021-03-25 08:04:04,038 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 70 selfloop transitions, 56 changer transitions 4/140 dead transitions. [2021-03-25 08:04:04,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 140 transitions, 4626 flow [2021-03-25 08:04:04,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:04,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:04,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:04,039 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:04,039 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:04,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:04,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:04,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:04,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,040 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,040 INFO L185 Difference]: Start difference. First operand has 216 places, 137 transitions, 4354 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:04,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 140 transitions, 4626 flow [2021-03-25 08:04:04,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 140 transitions, 4459 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:04,082 INFO L241 Difference]: Finished difference. Result has 217 places, 133 transitions, 4170 flow [2021-03-25 08:04:04,083 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4193, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4170, PETRI_PLACES=217, PETRI_TRANSITIONS=133} [2021-03-25 08:04:04,083 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 185 predicate places. [2021-03-25 08:04:04,083 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:04,083 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 217 places, 133 transitions, 4170 flow [2021-03-25 08:04:04,083 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 217 places, 133 transitions, 4170 flow [2021-03-25 08:04:04,084 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 215 places, 133 transitions, 4170 flow [2021-03-25 08:04:04,121 INFO L129 PetriNetUnfolder]: 0/455 cut-off events. [2021-03-25 08:04:04,121 INFO L130 PetriNetUnfolder]: For 12414/12445 co-relation queries the response was YES. [2021-03-25 08:04:04,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2985 conditions, 455 events. 0/455 cut-off events. For 12414/12445 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4699 event pairs, 0 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 0. Up to 55 conditions per place. [2021-03-25 08:04:04,124 INFO L142 LiptonReduction]: Number of co-enabled transitions 320 [2021-03-25 08:04:04,128 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:04,128 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:04,128 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-03-25 08:04:04,129 INFO L480 AbstractCegarLoop]: Abstraction has has 215 places, 133 transitions, 4170 flow [2021-03-25 08:04:04,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,129 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:04,129 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:04,129 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-25 08:04:04,129 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:04,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:04,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1442096254, now seen corresponding path program 51 times [2021-03-25 08:04:04,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:04,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308611151] [2021-03-25 08:04:04,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:04,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:04,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:04,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:04,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:04,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:04,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:04,146 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:04,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:04,156 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:04,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:04,170 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:04,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:04,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:04,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308611151] [2021-03-25 08:04:04,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:04,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:04,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900660428] [2021-03-25 08:04:04,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:04,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:04,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:04,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:04,184 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:04,184 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 133 transitions, 4170 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:04,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:04,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:04,280 INFO L129 PetriNetUnfolder]: 4/462 cut-off events. [2021-03-25 08:04:04,280 INFO L130 PetriNetUnfolder]: For 12548/12597 co-relation queries the response was YES. [2021-03-25 08:04:04,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3258 conditions, 462 events. 4/462 cut-off events. For 12548/12597 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4713 event pairs, 4 based on Foata normal form. 6/463 useless extension candidates. Maximal degree in co-relation 3190. Up to 109 conditions per place. [2021-03-25 08:04:04,282 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 82 selfloop transitions, 52 changer transitions 2/146 dead transitions. [2021-03-25 08:04:04,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 146 transitions, 4782 flow [2021-03-25 08:04:04,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:04,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:04,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:04,283 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:04,283 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:04,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:04,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:04,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:04,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,284 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,284 INFO L185 Difference]: Start difference. First operand has 215 places, 133 transitions, 4170 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:04,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 146 transitions, 4782 flow [2021-03-25 08:04:04,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 146 transitions, 4637 flow, removed 13 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:04,322 INFO L241 Difference]: Finished difference. Result has 219 places, 137 transitions, 4315 flow [2021-03-25 08:04:04,322 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4041, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4315, PETRI_PLACES=219, PETRI_TRANSITIONS=137} [2021-03-25 08:04:04,322 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 187 predicate places. [2021-03-25 08:04:04,322 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:04,323 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 219 places, 137 transitions, 4315 flow [2021-03-25 08:04:04,323 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 219 places, 137 transitions, 4315 flow [2021-03-25 08:04:04,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 218 places, 137 transitions, 4315 flow [2021-03-25 08:04:04,359 INFO L129 PetriNetUnfolder]: 0/447 cut-off events. [2021-03-25 08:04:04,359 INFO L130 PetriNetUnfolder]: For 12279/12306 co-relation queries the response was YES. [2021-03-25 08:04:04,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2947 conditions, 447 events. 0/447 cut-off events. For 12279/12306 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4619 event pairs, 0 based on Foata normal form. 0/443 useless extension candidates. Maximal degree in co-relation 0. Up to 54 conditions per place. [2021-03-25 08:04:04,362 INFO L142 LiptonReduction]: Number of co-enabled transitions 326 [2021-03-25 08:04:04,367 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:04,367 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:04,367 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-03-25 08:04:04,367 INFO L480 AbstractCegarLoop]: Abstraction has has 218 places, 137 transitions, 4315 flow [2021-03-25 08:04:04,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,367 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:04,367 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:04,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-25 08:04:04,367 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:04,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:04,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1979130362, now seen corresponding path program 52 times [2021-03-25 08:04:04,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:04,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788346777] [2021-03-25 08:04:04,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:04,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:04,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:04,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:04,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:04,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:04,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:04,384 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:04,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:04,394 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:04,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:04,408 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:04,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:04,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:04,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788346777] [2021-03-25 08:04:04,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:04,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:04,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776372171] [2021-03-25 08:04:04,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:04,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:04,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:04,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:04,422 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:04,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 137 transitions, 4315 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:04,423 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:04,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:04,523 INFO L129 PetriNetUnfolder]: 4/454 cut-off events. [2021-03-25 08:04:04,523 INFO L130 PetriNetUnfolder]: For 12407/12456 co-relation queries the response was YES. [2021-03-25 08:04:04,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3215 conditions, 454 events. 4/454 cut-off events. For 12407/12456 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4612 event pairs, 4 based on Foata normal form. 5/454 useless extension candidates. Maximal degree in co-relation 3146. Up to 109 conditions per place. [2021-03-25 08:04:04,525 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 82 selfloop transitions, 49 changer transitions 3/144 dead transitions. [2021-03-25 08:04:04,525 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 144 transitions, 4711 flow [2021-03-25 08:04:04,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:04,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:04,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:04,528 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:04,528 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:04,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:04,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:04,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:04,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,530 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,530 INFO L185 Difference]: Start difference. First operand has 218 places, 137 transitions, 4315 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:04,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 144 transitions, 4711 flow [2021-03-25 08:04:04,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 144 transitions, 4654 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-25 08:04:04,575 INFO L241 Difference]: Finished difference. Result has 222 places, 134 transitions, 4260 flow [2021-03-25 08:04:04,575 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4264, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4260, PETRI_PLACES=222, PETRI_TRANSITIONS=134} [2021-03-25 08:04:04,575 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 190 predicate places. [2021-03-25 08:04:04,575 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:04,576 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 222 places, 134 transitions, 4260 flow [2021-03-25 08:04:04,576 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 222 places, 134 transitions, 4260 flow [2021-03-25 08:04:04,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 221 places, 134 transitions, 4260 flow [2021-03-25 08:04:04,621 INFO L129 PetriNetUnfolder]: 0/438 cut-off events. [2021-03-25 08:04:04,621 INFO L130 PetriNetUnfolder]: For 12065/12100 co-relation queries the response was YES. [2021-03-25 08:04:04,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2938 conditions, 438 events. 0/438 cut-off events. For 12065/12100 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4488 event pairs, 0 based on Foata normal form. 0/434 useless extension candidates. Maximal degree in co-relation 0. Up to 53 conditions per place. [2021-03-25 08:04:04,625 INFO L142 LiptonReduction]: Number of co-enabled transitions 326 [2021-03-25 08:04:04,630 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:04,630 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:04,630 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-03-25 08:04:04,630 INFO L480 AbstractCegarLoop]: Abstraction has has 221 places, 134 transitions, 4260 flow [2021-03-25 08:04:04,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,631 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:04,631 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:04,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-25 08:04:04,631 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:04,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:04,631 INFO L82 PathProgramCache]: Analyzing trace with hash 2012160412, now seen corresponding path program 53 times [2021-03-25 08:04:04,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:04,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733756371] [2021-03-25 08:04:04,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:04,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:04,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:04,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:04,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:04,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:04,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:04,651 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:04,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:04,670 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:04,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:04,685 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:04,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:04,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:04,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733756371] [2021-03-25 08:04:04,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:04,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:04,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852149433] [2021-03-25 08:04:04,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:04,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:04,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:04,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:04,701 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:04,702 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 134 transitions, 4260 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,702 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:04,702 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:04,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:04,805 INFO L129 PetriNetUnfolder]: 4/445 cut-off events. [2021-03-25 08:04:04,805 INFO L130 PetriNetUnfolder]: For 12161/12213 co-relation queries the response was YES. [2021-03-25 08:04:04,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3202 conditions, 445 events. 4/445 cut-off events. For 12161/12213 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4492 event pairs, 4 based on Foata normal form. 5/445 useless extension candidates. Maximal degree in co-relation 3134. Up to 109 conditions per place. [2021-03-25 08:04:04,807 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 80 selfloop transitions, 48 changer transitions 3/141 dead transitions. [2021-03-25 08:04:04,807 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 141 transitions, 4650 flow [2021-03-25 08:04:04,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:04,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:04,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:04,808 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:04,808 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:04,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:04,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:04,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:04,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,809 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,809 INFO L185 Difference]: Start difference. First operand has 221 places, 134 transitions, 4260 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:04,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 141 transitions, 4650 flow [2021-03-25 08:04:04,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 141 transitions, 4553 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-25 08:04:04,850 INFO L241 Difference]: Finished difference. Result has 224 places, 131 transitions, 4164 flow [2021-03-25 08:04:04,850 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4169, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4164, PETRI_PLACES=224, PETRI_TRANSITIONS=131} [2021-03-25 08:04:04,850 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 192 predicate places. [2021-03-25 08:04:04,850 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:04,850 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 224 places, 131 transitions, 4164 flow [2021-03-25 08:04:04,851 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 224 places, 131 transitions, 4164 flow [2021-03-25 08:04:04,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 222 places, 131 transitions, 4164 flow [2021-03-25 08:04:04,887 INFO L129 PetriNetUnfolder]: 0/429 cut-off events. [2021-03-25 08:04:04,887 INFO L130 PetriNetUnfolder]: For 11798/11832 co-relation queries the response was YES. [2021-03-25 08:04:04,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2883 conditions, 429 events. 0/429 cut-off events. For 11798/11832 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4380 event pairs, 0 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 0. Up to 52 conditions per place. [2021-03-25 08:04:04,889 INFO L142 LiptonReduction]: Number of co-enabled transitions 326 [2021-03-25 08:04:04,894 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:04,894 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:04,894 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-03-25 08:04:04,894 INFO L480 AbstractCegarLoop]: Abstraction has has 222 places, 131 transitions, 4164 flow [2021-03-25 08:04:04,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,894 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:04,894 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:04,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-25 08:04:04,895 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:04,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:04,895 INFO L82 PathProgramCache]: Analyzing trace with hash -86033836, now seen corresponding path program 54 times [2021-03-25 08:04:04,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:04,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93904854] [2021-03-25 08:04:04,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:04,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:04,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:04,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:04,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:04,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:04,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:04,913 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:04,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:04,923 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:04,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:04,937 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:04,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:04,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:04,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93904854] [2021-03-25 08:04:04,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:04,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:04,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750057361] [2021-03-25 08:04:04,951 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:04,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:04,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:04,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:04,951 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:04,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 131 transitions, 4164 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:04,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:04,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:04,952 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:05,048 INFO L129 PetriNetUnfolder]: 4/436 cut-off events. [2021-03-25 08:04:05,048 INFO L130 PetriNetUnfolder]: For 11910/11964 co-relation queries the response was YES. [2021-03-25 08:04:05,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3143 conditions, 436 events. 4/436 cut-off events. For 11910/11964 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4366 event pairs, 4 based on Foata normal form. 6/437 useless extension candidates. Maximal degree in co-relation 3075. Up to 109 conditions per place. [2021-03-25 08:04:05,050 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 76 selfloop transitions, 50 changer transitions 2/138 dead transitions. [2021-03-25 08:04:05,050 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 138 transitions, 4548 flow [2021-03-25 08:04:05,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:05,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:05,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:05,052 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:05,052 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:05,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:05,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:05,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:05,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,056 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,056 INFO L185 Difference]: Start difference. First operand has 222 places, 131 transitions, 4164 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:05,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 138 transitions, 4548 flow [2021-03-25 08:04:05,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 138 transitions, 4430 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:05,095 INFO L241 Difference]: Finished difference. Result has 225 places, 133 transitions, 4204 flow [2021-03-25 08:04:05,095 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4052, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4204, PETRI_PLACES=225, PETRI_TRANSITIONS=133} [2021-03-25 08:04:05,096 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 193 predicate places. [2021-03-25 08:04:05,096 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:05,096 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 225 places, 133 transitions, 4204 flow [2021-03-25 08:04:05,096 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 225 places, 133 transitions, 4204 flow [2021-03-25 08:04:05,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 223 places, 133 transitions, 4204 flow [2021-03-25 08:04:05,132 INFO L129 PetriNetUnfolder]: 0/423 cut-off events. [2021-03-25 08:04:05,133 INFO L130 PetriNetUnfolder]: For 11770/11804 co-relation queries the response was YES. [2021-03-25 08:04:05,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2830 conditions, 423 events. 0/423 cut-off events. For 11770/11804 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4301 event pairs, 0 based on Foata normal form. 0/418 useless extension candidates. Maximal degree in co-relation 0. Up to 51 conditions per place. [2021-03-25 08:04:05,135 INFO L142 LiptonReduction]: Number of co-enabled transitions 318 [2021-03-25 08:04:05,139 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:05,139 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:05,140 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-03-25 08:04:05,140 INFO L480 AbstractCegarLoop]: Abstraction has has 223 places, 133 transitions, 4204 flow [2021-03-25 08:04:05,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,140 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:05,140 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:05,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-03-25 08:04:05,140 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:05,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:05,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1220887942, now seen corresponding path program 55 times [2021-03-25 08:04:05,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:05,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457526065] [2021-03-25 08:04:05,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:05,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:05,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:05,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:05,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:05,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:05,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:05,157 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:05,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:05,166 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:05,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:05,180 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:05,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:05,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:05,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457526065] [2021-03-25 08:04:05,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:05,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:05,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205025071] [2021-03-25 08:04:05,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:05,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:05,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:05,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:05,194 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:05,194 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 133 transitions, 4204 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,194 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:05,194 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:05,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:05,292 INFO L129 PetriNetUnfolder]: 4/430 cut-off events. [2021-03-25 08:04:05,292 INFO L130 PetriNetUnfolder]: For 11883/11935 co-relation queries the response was YES. [2021-03-25 08:04:05,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3087 conditions, 430 events. 4/430 cut-off events. For 11883/11935 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4306 event pairs, 4 based on Foata normal form. 5/430 useless extension candidates. Maximal degree in co-relation 3018. Up to 109 conditions per place. [2021-03-25 08:04:05,294 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 75 selfloop transitions, 47 changer transitions 4/136 dead transitions. [2021-03-25 08:04:05,294 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 136 transitions, 4468 flow [2021-03-25 08:04:05,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:05,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:05,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:05,295 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:05,295 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:05,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:05,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:05,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:05,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,296 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,296 INFO L185 Difference]: Start difference. First operand has 223 places, 133 transitions, 4204 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:05,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 136 transitions, 4468 flow [2021-03-25 08:04:05,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 136 transitions, 4342 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-03-25 08:04:05,333 INFO L241 Difference]: Finished difference. Result has 226 places, 129 transitions, 4044 flow [2021-03-25 08:04:05,334 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4084, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4044, PETRI_PLACES=226, PETRI_TRANSITIONS=129} [2021-03-25 08:04:05,334 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 194 predicate places. [2021-03-25 08:04:05,334 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:05,334 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 226 places, 129 transitions, 4044 flow [2021-03-25 08:04:05,334 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 226 places, 129 transitions, 4044 flow [2021-03-25 08:04:05,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 224 places, 129 transitions, 4044 flow [2021-03-25 08:04:05,367 INFO L129 PetriNetUnfolder]: 0/412 cut-off events. [2021-03-25 08:04:05,367 INFO L130 PetriNetUnfolder]: For 11231/11256 co-relation queries the response was YES. [2021-03-25 08:04:05,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2725 conditions, 412 events. 0/412 cut-off events. For 11231/11256 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4153 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 0. Up to 50 conditions per place. [2021-03-25 08:04:05,369 INFO L142 LiptonReduction]: Number of co-enabled transitions 302 [2021-03-25 08:04:05,374 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:05,374 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:05,374 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-03-25 08:04:05,374 INFO L480 AbstractCegarLoop]: Abstraction has has 224 places, 129 transitions, 4044 flow [2021-03-25 08:04:05,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,374 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:05,374 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:05,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-03-25 08:04:05,374 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:05,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:05,375 INFO L82 PathProgramCache]: Analyzing trace with hash 585935550, now seen corresponding path program 56 times [2021-03-25 08:04:05,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:05,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423489012] [2021-03-25 08:04:05,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:05,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:05,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:05,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:05,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:05,385 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:05,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:05,395 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:05,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:05,405 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:05,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:05,418 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:05,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:05,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:05,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423489012] [2021-03-25 08:04:05,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:05,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:05,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946690593] [2021-03-25 08:04:05,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:05,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:05,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:05,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:05,433 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:05,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 129 transitions, 4044 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,433 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:05,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:05,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:05,531 INFO L129 PetriNetUnfolder]: 4/419 cut-off events. [2021-03-25 08:04:05,532 INFO L130 PetriNetUnfolder]: For 11282/11308 co-relation queries the response was YES. [2021-03-25 08:04:05,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2976 conditions, 419 events. 4/419 cut-off events. For 11282/11308 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4189 event pairs, 0 based on Foata normal form. 6/423 useless extension candidates. Maximal degree in co-relation 2907. Up to 76 conditions per place. [2021-03-25 08:04:05,533 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 72 selfloop transitions, 57 changer transitions 1/140 dead transitions. [2021-03-25 08:04:05,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 140 transitions, 4513 flow [2021-03-25 08:04:05,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:05,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:05,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:05,534 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:05,534 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:05,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:05,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:05,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:05,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,535 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,535 INFO L185 Difference]: Start difference. First operand has 224 places, 129 transitions, 4044 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:05,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 140 transitions, 4513 flow [2021-03-25 08:04:05,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 140 transitions, 4359 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:05,570 INFO L241 Difference]: Finished difference. Result has 227 places, 129 transitions, 4021 flow [2021-03-25 08:04:05,570 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3902, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4021, PETRI_PLACES=227, PETRI_TRANSITIONS=129} [2021-03-25 08:04:05,570 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 195 predicate places. [2021-03-25 08:04:05,570 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:05,571 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 227 places, 129 transitions, 4021 flow [2021-03-25 08:04:05,571 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 227 places, 129 transitions, 4021 flow [2021-03-25 08:04:05,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 225 places, 129 transitions, 4021 flow [2021-03-25 08:04:05,604 INFO L129 PetriNetUnfolder]: 0/408 cut-off events. [2021-03-25 08:04:05,604 INFO L130 PetriNetUnfolder]: For 11117/11148 co-relation queries the response was YES. [2021-03-25 08:04:05,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2682 conditions, 408 events. 0/408 cut-off events. For 11117/11148 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4122 event pairs, 0 based on Foata normal form. 0/405 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2021-03-25 08:04:05,606 INFO L142 LiptonReduction]: Number of co-enabled transitions 300 [2021-03-25 08:04:05,611 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:05,611 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:05,611 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-25 08:04:05,611 INFO L480 AbstractCegarLoop]: Abstraction has has 225 places, 129 transitions, 4021 flow [2021-03-25 08:04:05,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,611 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:05,611 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:05,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-03-25 08:04:05,611 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:05,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:05,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1327633620, now seen corresponding path program 57 times [2021-03-25 08:04:05,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:05,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049437678] [2021-03-25 08:04:05,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:05,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:05,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:05,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:05,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:05,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:05,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:05,632 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:05,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:05,642 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:05,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:05,657 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:05,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:05,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049437678] [2021-03-25 08:04:05,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:05,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:05,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232288409] [2021-03-25 08:04:05,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:05,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:05,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:05,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:05,671 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:05,671 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 129 transitions, 4021 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,671 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:05,672 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:05,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:05,765 INFO L129 PetriNetUnfolder]: 4/415 cut-off events. [2021-03-25 08:04:05,765 INFO L130 PetriNetUnfolder]: For 11104/11107 co-relation queries the response was YES. [2021-03-25 08:04:05,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2935 conditions, 415 events. 4/415 cut-off events. For 11104/11107 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4117 event pairs, 0 based on Foata normal form. 1/415 useless extension candidates. Maximal degree in co-relation 2865. Up to 80 conditions per place. [2021-03-25 08:04:05,767 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 73 selfloop transitions, 54 changer transitions 2/139 dead transitions. [2021-03-25 08:04:05,767 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 139 transitions, 4446 flow [2021-03-25 08:04:05,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:05,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:05,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:05,767 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:05,767 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:05,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:05,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:05,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:05,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,768 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,768 INFO L185 Difference]: Start difference. First operand has 225 places, 129 transitions, 4021 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:05,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 139 transitions, 4446 flow [2021-03-25 08:04:05,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 139 transitions, 4370 flow, removed 16 selfloop flow, removed 3 redundant places. [2021-03-25 08:04:05,806 INFO L241 Difference]: Finished difference. Result has 230 places, 128 transitions, 4027 flow [2021-03-25 08:04:05,806 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3951, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4027, PETRI_PLACES=230, PETRI_TRANSITIONS=128} [2021-03-25 08:04:05,806 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 198 predicate places. [2021-03-25 08:04:05,806 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:05,806 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 230 places, 128 transitions, 4027 flow [2021-03-25 08:04:05,806 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 230 places, 128 transitions, 4027 flow [2021-03-25 08:04:05,808 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 228 places, 128 transitions, 4027 flow [2021-03-25 08:04:05,839 INFO L129 PetriNetUnfolder]: 0/400 cut-off events. [2021-03-25 08:04:05,839 INFO L130 PetriNetUnfolder]: For 10779/10810 co-relation queries the response was YES. [2021-03-25 08:04:05,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2659 conditions, 400 events. 0/400 cut-off events. For 10779/10810 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3984 event pairs, 0 based on Foata normal form. 0/398 useless extension candidates. Maximal degree in co-relation 0. Up to 48 conditions per place. [2021-03-25 08:04:05,841 INFO L142 LiptonReduction]: Number of co-enabled transitions 292 [2021-03-25 08:04:05,845 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:05,845 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:05,846 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-03-25 08:04:05,846 INFO L480 AbstractCegarLoop]: Abstraction has has 228 places, 128 transitions, 4027 flow [2021-03-25 08:04:05,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,846 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:05,846 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:05,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-03-25 08:04:05,846 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:05,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:05,846 INFO L82 PathProgramCache]: Analyzing trace with hash -5454224, now seen corresponding path program 58 times [2021-03-25 08:04:05,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:05,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834128679] [2021-03-25 08:04:05,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:05,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:05,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:05,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:05,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:05,860 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:04:05,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:04:05,867 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:05,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:05,877 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:05,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:05,890 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:05,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:05,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:05,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834128679] [2021-03-25 08:04:05,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:05,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:05,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091027713] [2021-03-25 08:04:05,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:05,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:05,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:05,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:05,904 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:05,905 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 128 transitions, 4027 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:05,905 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:05,905 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:05,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:05,997 INFO L129 PetriNetUnfolder]: 3/423 cut-off events. [2021-03-25 08:04:05,997 INFO L130 PetriNetUnfolder]: For 11349/11375 co-relation queries the response was YES. [2021-03-25 08:04:05,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2998 conditions, 423 events. 3/423 cut-off events. For 11349/11375 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4207 event pairs, 1 based on Foata normal form. 3/424 useless extension candidates. Maximal degree in co-relation 2928. Up to 89 conditions per place. [2021-03-25 08:04:05,999 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 85 selfloop transitions, 49 changer transitions 3/147 dead transitions. [2021-03-25 08:04:05,999 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 147 transitions, 4760 flow [2021-03-25 08:04:06,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:06,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:06,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:06,000 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:06,000 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:06,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:06,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:06,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:06,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,001 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,001 INFO L185 Difference]: Start difference. First operand has 228 places, 128 transitions, 4027 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:06,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 147 transitions, 4760 flow [2021-03-25 08:04:06,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 147 transitions, 4629 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:06,041 INFO L241 Difference]: Finished difference. Result has 234 places, 136 transitions, 4320 flow [2021-03-25 08:04:06,041 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3919, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4320, PETRI_PLACES=234, PETRI_TRANSITIONS=136} [2021-03-25 08:04:06,041 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 202 predicate places. [2021-03-25 08:04:06,041 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:06,041 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 234 places, 136 transitions, 4320 flow [2021-03-25 08:04:06,041 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 234 places, 136 transitions, 4320 flow [2021-03-25 08:04:06,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 233 places, 136 transitions, 4320 flow [2021-03-25 08:04:06,077 INFO L129 PetriNetUnfolder]: 0/409 cut-off events. [2021-03-25 08:04:06,078 INFO L130 PetriNetUnfolder]: For 11655/11702 co-relation queries the response was YES. [2021-03-25 08:04:06,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2741 conditions, 409 events. 0/409 cut-off events. For 11655/11702 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4106 event pairs, 0 based on Foata normal form. 2/408 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2021-03-25 08:04:06,080 INFO L142 LiptonReduction]: Number of co-enabled transitions 300 [2021-03-25 08:04:06,085 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:06,085 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:06,085 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-03-25 08:04:06,086 INFO L480 AbstractCegarLoop]: Abstraction has has 233 places, 136 transitions, 4320 flow [2021-03-25 08:04:06,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,086 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:06,086 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:06,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-03-25 08:04:06,086 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:06,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:06,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1082374298, now seen corresponding path program 59 times [2021-03-25 08:04:06,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:06,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215895304] [2021-03-25 08:04:06,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:06,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:06,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:06,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:06,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:06,097 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:06,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:06,107 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:06,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:06,117 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:06,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:06,131 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:06,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:06,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:06,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215895304] [2021-03-25 08:04:06,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:06,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:06,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469190109] [2021-03-25 08:04:06,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:06,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:06,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:06,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:06,146 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:06,146 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 136 transitions, 4320 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,146 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:06,146 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:06,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:06,225 INFO L129 PetriNetUnfolder]: 3/414 cut-off events. [2021-03-25 08:04:06,226 INFO L130 PetriNetUnfolder]: For 11575/11575 co-relation queries the response was YES. [2021-03-25 08:04:06,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2982 conditions, 414 events. 3/414 cut-off events. For 11575/11575 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4080 event pairs, 0 based on Foata normal form. 1/415 useless extension candidates. Maximal degree in co-relation 2909. Up to 76 conditions per place. [2021-03-25 08:04:06,227 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 74 selfloop transitions, 59 changer transitions 3/146 dead transitions. [2021-03-25 08:04:06,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 146 transitions, 4763 flow [2021-03-25 08:04:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:06,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:06,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:06,228 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:06,228 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:06,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:06,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:06,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:06,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,229 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,229 INFO L185 Difference]: Start difference. First operand has 233 places, 136 transitions, 4320 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:06,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 146 transitions, 4763 flow [2021-03-25 08:04:06,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 146 transitions, 4709 flow, removed 14 selfloop flow, removed 3 redundant places. [2021-03-25 08:04:06,267 INFO L241 Difference]: Finished difference. Result has 237 places, 133 transitions, 4284 flow [2021-03-25 08:04:06,268 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4277, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4284, PETRI_PLACES=237, PETRI_TRANSITIONS=133} [2021-03-25 08:04:06,268 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 205 predicate places. [2021-03-25 08:04:06,268 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:06,268 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 237 places, 133 transitions, 4284 flow [2021-03-25 08:04:06,268 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 237 places, 133 transitions, 4284 flow [2021-03-25 08:04:06,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 235 places, 133 transitions, 4284 flow [2021-03-25 08:04:06,301 INFO L129 PetriNetUnfolder]: 0/400 cut-off events. [2021-03-25 08:04:06,302 INFO L130 PetriNetUnfolder]: For 11363/11381 co-relation queries the response was YES. [2021-03-25 08:04:06,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2727 conditions, 400 events. 0/400 cut-off events. For 11363/11381 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3973 event pairs, 0 based on Foata normal form. 0/396 useless extension candidates. Maximal degree in co-relation 0. Up to 48 conditions per place. [2021-03-25 08:04:06,304 INFO L142 LiptonReduction]: Number of co-enabled transitions 280 [2021-03-25 08:04:06,309 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:06,309 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:06,309 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-25 08:04:06,309 INFO L480 AbstractCegarLoop]: Abstraction has has 235 places, 133 transitions, 4284 flow [2021-03-25 08:04:06,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,309 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:06,309 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:06,309 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-25 08:04:06,309 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:06,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:06,310 INFO L82 PathProgramCache]: Analyzing trace with hash 794978954, now seen corresponding path program 60 times [2021-03-25 08:04:06,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:06,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453177706] [2021-03-25 08:04:06,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:06,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:06,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:06,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:06,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:06,320 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:06,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:06,331 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:06,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:06,341 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:06,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:06,355 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:06,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:06,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:06,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453177706] [2021-03-25 08:04:06,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:06,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:06,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821333945] [2021-03-25 08:04:06,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:06,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:06,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:06,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:06,369 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:06,369 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 133 transitions, 4284 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,369 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:06,369 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:06,369 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:06,471 INFO L129 PetriNetUnfolder]: 1/471 cut-off events. [2021-03-25 08:04:06,471 INFO L130 PetriNetUnfolder]: For 13392/13392 co-relation queries the response was YES. [2021-03-25 08:04:06,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3371 conditions, 471 events. 1/471 cut-off events. For 13392/13392 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4842 event pairs, 1 based on Foata normal form. 1/471 useless extension candidates. Maximal degree in co-relation 3299. Up to 95 conditions per place. [2021-03-25 08:04:06,472 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 91 selfloop transitions, 54 changer transitions 2/157 dead transitions. [2021-03-25 08:04:06,473 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 157 transitions, 5293 flow [2021-03-25 08:04:06,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:06,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:06,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:06,473 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:06,473 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:06,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:06,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:06,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:06,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,474 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,474 INFO L185 Difference]: Start difference. First operand has 235 places, 133 transitions, 4284 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:06,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 157 transitions, 5293 flow [2021-03-25 08:04:06,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 157 transitions, 5088 flow, removed 9 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:06,516 INFO L241 Difference]: Finished difference. Result has 240 places, 142 transitions, 4615 flow [2021-03-25 08:04:06,517 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4116, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4615, PETRI_PLACES=240, PETRI_TRANSITIONS=142} [2021-03-25 08:04:06,517 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 208 predicate places. [2021-03-25 08:04:06,517 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:06,517 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 142 transitions, 4615 flow [2021-03-25 08:04:06,517 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 142 transitions, 4615 flow [2021-03-25 08:04:06,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 142 transitions, 4615 flow [2021-03-25 08:04:06,567 INFO L129 PetriNetUnfolder]: 0/462 cut-off events. [2021-03-25 08:04:06,567 INFO L130 PetriNetUnfolder]: For 13313/13323 co-relation queries the response was YES. [2021-03-25 08:04:06,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3121 conditions, 462 events. 0/462 cut-off events. For 13313/13323 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4807 event pairs, 0 based on Foata normal form. 0/457 useless extension candidates. Maximal degree in co-relation 0. Up to 55 conditions per place. [2021-03-25 08:04:06,570 INFO L142 LiptonReduction]: Number of co-enabled transitions 298 [2021-03-25 08:04:06,575 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:06,575 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:06,575 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-03-25 08:04:06,575 INFO L480 AbstractCegarLoop]: Abstraction has has 239 places, 142 transitions, 4615 flow [2021-03-25 08:04:06,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,575 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:06,576 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:06,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-03-25 08:04:06,576 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:06,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:06,576 INFO L82 PathProgramCache]: Analyzing trace with hash -2001787642, now seen corresponding path program 61 times [2021-03-25 08:04:06,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:06,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083809114] [2021-03-25 08:04:06,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:06,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:06,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:06,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:06,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:06,587 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:06,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:06,599 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:06,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:06,608 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:06,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:06,622 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:06,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:06,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:06,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083809114] [2021-03-25 08:04:06,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:06,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:06,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416532805] [2021-03-25 08:04:06,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:06,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:06,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:06,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:06,636 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:06,636 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 142 transitions, 4615 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,636 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:06,636 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:06,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:06,733 INFO L129 PetriNetUnfolder]: 1/463 cut-off events. [2021-03-25 08:04:06,733 INFO L130 PetriNetUnfolder]: For 13442/13442 co-relation queries the response was YES. [2021-03-25 08:04:06,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3344 conditions, 463 events. 1/463 cut-off events. For 13442/13442 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4743 event pairs, 0 based on Foata normal form. 1/464 useless extension candidates. Maximal degree in co-relation 3269. Up to 108 conditions per place. [2021-03-25 08:04:06,735 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 97 selfloop transitions, 53 changer transitions 2/162 dead transitions. [2021-03-25 08:04:06,735 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 162 transitions, 5424 flow [2021-03-25 08:04:06,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:06,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:06,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:06,736 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:06,736 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:06,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:06,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:06,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:06,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,736 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,736 INFO L185 Difference]: Start difference. First operand has 239 places, 142 transitions, 4615 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:06,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 162 transitions, 5424 flow [2021-03-25 08:04:06,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 162 transitions, 5375 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-03-25 08:04:06,782 INFO L241 Difference]: Finished difference. Result has 245 places, 146 transitions, 4842 flow [2021-03-25 08:04:06,782 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4575, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4842, PETRI_PLACES=245, PETRI_TRANSITIONS=146} [2021-03-25 08:04:06,782 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 213 predicate places. [2021-03-25 08:04:06,782 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:06,783 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 245 places, 146 transitions, 4842 flow [2021-03-25 08:04:06,783 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 245 places, 146 transitions, 4842 flow [2021-03-25 08:04:06,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 244 places, 146 transitions, 4842 flow [2021-03-25 08:04:06,822 INFO L129 PetriNetUnfolder]: 0/454 cut-off events. [2021-03-25 08:04:06,823 INFO L130 PetriNetUnfolder]: For 14310/14346 co-relation queries the response was YES. [2021-03-25 08:04:06,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3156 conditions, 454 events. 0/454 cut-off events. For 14310/14346 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4667 event pairs, 0 based on Foata normal form. 2/453 useless extension candidates. Maximal degree in co-relation 0. Up to 54 conditions per place. [2021-03-25 08:04:06,825 INFO L142 LiptonReduction]: Number of co-enabled transitions 302 [2021-03-25 08:04:06,830 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:06,830 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:06,831 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49 [2021-03-25 08:04:06,831 INFO L480 AbstractCegarLoop]: Abstraction has has 244 places, 146 transitions, 4842 flow [2021-03-25 08:04:06,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,831 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:06,831 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:06,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-03-25 08:04:06,831 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:06,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:06,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1264136224, now seen corresponding path program 62 times [2021-03-25 08:04:06,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:06,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239290860] [2021-03-25 08:04:06,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:06,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:06,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:06,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:06,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:06,842 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:06,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:06,852 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:06,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:06,870 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:06,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:06,885 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:06,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:06,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:06,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239290860] [2021-03-25 08:04:06,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:06,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:06,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137439272] [2021-03-25 08:04:06,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:06,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:06,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:06,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:06,900 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:06,900 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 146 transitions, 4842 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,900 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:06,900 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:06,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:06,985 INFO L129 PetriNetUnfolder]: 1/455 cut-off events. [2021-03-25 08:04:06,985 INFO L130 PetriNetUnfolder]: For 14173/14185 co-relation queries the response was YES. [2021-03-25 08:04:06,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3377 conditions, 455 events. 1/455 cut-off events. For 14173/14185 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4640 event pairs, 0 based on Foata normal form. 2/457 useless extension candidates. Maximal degree in co-relation 3301. Up to 79 conditions per place. [2021-03-25 08:04:06,987 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 80 selfloop transitions, 57 changer transitions 3/150 dead transitions. [2021-03-25 08:04:06,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 150 transitions, 5148 flow [2021-03-25 08:04:06,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:06,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:06,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:04:06,988 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:04:06,988 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:04:06,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:04:06,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:06,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:04:06,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,989 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:06,989 INFO L185 Difference]: Start difference. First operand has 244 places, 146 transitions, 4842 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:04:06,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 150 transitions, 5148 flow [2021-03-25 08:04:07,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 150 transitions, 5067 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-25 08:04:07,035 INFO L241 Difference]: Finished difference. Result has 247 places, 143 transitions, 4769 flow [2021-03-25 08:04:07,036 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4767, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4769, PETRI_PLACES=247, PETRI_TRANSITIONS=143} [2021-03-25 08:04:07,036 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 215 predicate places. [2021-03-25 08:04:07,036 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:07,036 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 247 places, 143 transitions, 4769 flow [2021-03-25 08:04:07,036 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 247 places, 143 transitions, 4769 flow [2021-03-25 08:04:07,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 242 places, 143 transitions, 4769 flow [2021-03-25 08:04:07,075 INFO L129 PetriNetUnfolder]: 0/445 cut-off events. [2021-03-25 08:04:07,075 INFO L130 PetriNetUnfolder]: For 13922/13958 co-relation queries the response was YES. [2021-03-25 08:04:07,076 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3137 conditions, 445 events. 0/445 cut-off events. For 13922/13958 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4558 event pairs, 0 based on Foata normal form. 2/444 useless extension candidates. Maximal degree in co-relation 0. Up to 53 conditions per place. [2021-03-25 08:04:07,078 INFO L142 LiptonReduction]: Number of co-enabled transitions 290 [2021-03-25 08:04:07,083 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:07,083 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:07,083 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-03-25 08:04:07,084 INFO L480 AbstractCegarLoop]: Abstraction has has 242 places, 143 transitions, 4769 flow [2021-03-25 08:04:07,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,084 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:07,084 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:07,084 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-03-25 08:04:07,084 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:07,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:07,085 INFO L82 PathProgramCache]: Analyzing trace with hash 490388700, now seen corresponding path program 63 times [2021-03-25 08:04:07,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:07,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27172639] [2021-03-25 08:04:07,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:07,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:07,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:07,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:07,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:07,105 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:07,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:07,115 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:07,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:07,131 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:07,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:07,144 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:07,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:07,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:07,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27172639] [2021-03-25 08:04:07,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:07,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:07,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346829382] [2021-03-25 08:04:07,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:07,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:07,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:07,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:07,158 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:07,158 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 143 transitions, 4769 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:07,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:07,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:07,258 INFO L129 PetriNetUnfolder]: 1/446 cut-off events. [2021-03-25 08:04:07,258 INFO L130 PetriNetUnfolder]: For 14153/14219 co-relation queries the response was YES. [2021-03-25 08:04:07,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3355 conditions, 446 events. 1/446 cut-off events. For 14153/14219 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4518 event pairs, 0 based on Foata normal form. 16/462 useless extension candidates. Maximal degree in co-relation 3281. Up to 79 conditions per place. [2021-03-25 08:04:07,260 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 75 selfloop transitions, 60 changer transitions 2/147 dead transitions. [2021-03-25 08:04:07,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 147 transitions, 5069 flow [2021-03-25 08:04:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:07,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:07,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:07,261 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:07,261 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:07,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:07,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:07,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:07,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,263 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,263 INFO L185 Difference]: Start difference. First operand has 242 places, 143 transitions, 4769 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:07,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 147 transitions, 5069 flow [2021-03-25 08:04:07,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 147 transitions, 4897 flow, removed 25 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:07,307 INFO L241 Difference]: Finished difference. Result has 243 places, 141 transitions, 4640 flow [2021-03-25 08:04:07,308 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4603, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4640, PETRI_PLACES=243, PETRI_TRANSITIONS=141} [2021-03-25 08:04:07,308 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 211 predicate places. [2021-03-25 08:04:07,308 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:07,308 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 243 places, 141 transitions, 4640 flow [2021-03-25 08:04:07,308 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 243 places, 141 transitions, 4640 flow [2021-03-25 08:04:07,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 241 places, 141 transitions, 4640 flow [2021-03-25 08:04:07,345 INFO L129 PetriNetUnfolder]: 0/437 cut-off events. [2021-03-25 08:04:07,346 INFO L130 PetriNetUnfolder]: For 12819/12829 co-relation queries the response was YES. [2021-03-25 08:04:07,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3073 conditions, 437 events. 0/437 cut-off events. For 12819/12829 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4466 event pairs, 0 based on Foata normal form. 0/434 useless extension candidates. Maximal degree in co-relation 0. Up to 52 conditions per place. [2021-03-25 08:04:07,348 INFO L142 LiptonReduction]: Number of co-enabled transitions 284 [2021-03-25 08:04:07,353 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:07,353 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:07,353 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-03-25 08:04:07,353 INFO L480 AbstractCegarLoop]: Abstraction has has 241 places, 141 transitions, 4640 flow [2021-03-25 08:04:07,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,354 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:07,354 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:07,354 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-03-25 08:04:07,354 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:07,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:07,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1869380256, now seen corresponding path program 64 times [2021-03-25 08:04:07,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:07,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936716315] [2021-03-25 08:04:07,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:07,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:07,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:07,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:07,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:07,364 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:07,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:07,374 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:07,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:07,389 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:07,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:07,403 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:07,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:07,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:07,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936716315] [2021-03-25 08:04:07,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:07,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:07,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077703701] [2021-03-25 08:04:07,416 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:07,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:07,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:07,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:07,417 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:07,417 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 141 transitions, 4640 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,417 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:07,417 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:07,417 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:07,502 INFO L129 PetriNetUnfolder]: 1/438 cut-off events. [2021-03-25 08:04:07,503 INFO L130 PetriNetUnfolder]: For 13266/13332 co-relation queries the response was YES. [2021-03-25 08:04:07,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3288 conditions, 438 events. 1/438 cut-off events. For 13266/13332 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4418 event pairs, 0 based on Foata normal form. 16/454 useless extension candidates. Maximal degree in co-relation 3216. Up to 79 conditions per place. [2021-03-25 08:04:07,504 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 75 selfloop transitions, 55 changer transitions 4/144 dead transitions. [2021-03-25 08:04:07,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 144 transitions, 4930 flow [2021-03-25 08:04:07,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:07,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:07,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:04:07,505 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:04:07,505 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:04:07,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:04:07,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:07,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:04:07,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,506 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,506 INFO L185 Difference]: Start difference. First operand has 241 places, 141 transitions, 4640 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:04:07,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 144 transitions, 4930 flow [2021-03-25 08:04:07,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 144 transitions, 4839 flow, removed 8 selfloop flow, removed 3 redundant places. [2021-03-25 08:04:07,551 INFO L241 Difference]: Finished difference. Result has 245 places, 137 transitions, 4531 flow [2021-03-25 08:04:07,551 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4553, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4531, PETRI_PLACES=245, PETRI_TRANSITIONS=137} [2021-03-25 08:04:07,551 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 213 predicate places. [2021-03-25 08:04:07,551 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:07,551 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 245 places, 137 transitions, 4531 flow [2021-03-25 08:04:07,551 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 245 places, 137 transitions, 4531 flow [2021-03-25 08:04:07,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 240 places, 137 transitions, 4531 flow [2021-03-25 08:04:07,597 INFO L129 PetriNetUnfolder]: 0/427 cut-off events. [2021-03-25 08:04:07,597 INFO L130 PetriNetUnfolder]: For 12484/12494 co-relation queries the response was YES. [2021-03-25 08:04:07,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3026 conditions, 427 events. 0/427 cut-off events. For 12484/12494 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4320 event pairs, 0 based on Foata normal form. 0/425 useless extension candidates. Maximal degree in co-relation 0. Up to 51 conditions per place. [2021-03-25 08:04:07,599 INFO L142 LiptonReduction]: Number of co-enabled transitions 280 [2021-03-25 08:04:07,604 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:07,604 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:07,604 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 53 [2021-03-25 08:04:07,605 INFO L480 AbstractCegarLoop]: Abstraction has has 240 places, 137 transitions, 4531 flow [2021-03-25 08:04:07,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,605 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:07,605 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:07,605 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-03-25 08:04:07,605 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:07,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:07,605 INFO L82 PathProgramCache]: Analyzing trace with hash -594378344, now seen corresponding path program 65 times [2021-03-25 08:04:07,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:07,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531234008] [2021-03-25 08:04:07,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:07,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:07,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:07,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:07,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:07,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:07,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:07,627 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:07,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:07,644 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:07,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:07,657 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:07,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:07,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:07,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531234008] [2021-03-25 08:04:07,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:07,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:07,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308550106] [2021-03-25 08:04:07,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:07,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:07,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:07,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:07,671 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:07,671 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 137 transitions, 4531 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,671 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:07,671 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:07,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:07,766 INFO L129 PetriNetUnfolder]: 1/428 cut-off events. [2021-03-25 08:04:07,766 INFO L130 PetriNetUnfolder]: For 12620/12632 co-relation queries the response was YES. [2021-03-25 08:04:07,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3236 conditions, 428 events. 1/428 cut-off events. For 12620/12632 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4284 event pairs, 0 based on Foata normal form. 2/430 useless extension candidates. Maximal degree in co-relation 3164. Up to 82 conditions per place. [2021-03-25 08:04:07,768 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 75 selfloop transitions, 54 changer transitions 2/141 dead transitions. [2021-03-25 08:04:07,768 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 141 transitions, 4819 flow [2021-03-25 08:04:07,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:07,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:07,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:07,769 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:07,769 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:07,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:07,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:07,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:07,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,770 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,770 INFO L185 Difference]: Start difference. First operand has 240 places, 137 transitions, 4531 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:07,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 141 transitions, 4819 flow [2021-03-25 08:04:07,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 141 transitions, 4684 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:07,812 INFO L241 Difference]: Finished difference. Result has 241 places, 135 transitions, 4435 flow [2021-03-25 08:04:07,812 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4402, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4435, PETRI_PLACES=241, PETRI_TRANSITIONS=135} [2021-03-25 08:04:07,812 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 209 predicate places. [2021-03-25 08:04:07,812 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:07,812 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 241 places, 135 transitions, 4435 flow [2021-03-25 08:04:07,812 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 241 places, 135 transitions, 4435 flow [2021-03-25 08:04:07,813 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 135 transitions, 4435 flow [2021-03-25 08:04:07,848 INFO L129 PetriNetUnfolder]: 0/420 cut-off events. [2021-03-25 08:04:07,848 INFO L130 PetriNetUnfolder]: For 12151/12173 co-relation queries the response was YES. [2021-03-25 08:04:07,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2973 conditions, 420 events. 0/420 cut-off events. For 12151/12173 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4239 event pairs, 0 based on Foata normal form. 1/418 useless extension candidates. Maximal degree in co-relation 0. Up to 50 conditions per place. [2021-03-25 08:04:07,851 INFO L142 LiptonReduction]: Number of co-enabled transitions 276 [2021-03-25 08:04:07,856 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:07,856 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:07,856 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-03-25 08:04:07,856 INFO L480 AbstractCegarLoop]: Abstraction has has 239 places, 135 transitions, 4435 flow [2021-03-25 08:04:07,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,856 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:07,856 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:07,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-03-25 08:04:07,856 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:07,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:07,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1412016604, now seen corresponding path program 66 times [2021-03-25 08:04:07,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:07,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248833333] [2021-03-25 08:04:07,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:07,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:07,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:07,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:07,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:07,867 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:07,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:07,879 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:07,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:07,895 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:07,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:07,911 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:07,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:07,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:07,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248833333] [2021-03-25 08:04:07,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:07,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:07,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525741061] [2021-03-25 08:04:07,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:07,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:07,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:07,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:07,927 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:07,927 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 135 transitions, 4435 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:07,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:07,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:07,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:08,007 INFO L129 PetriNetUnfolder]: 1/421 cut-off events. [2021-03-25 08:04:08,007 INFO L130 PetriNetUnfolder]: For 12156/12168 co-relation queries the response was YES. [2021-03-25 08:04:08,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3180 conditions, 421 events. 1/421 cut-off events. For 12156/12168 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4221 event pairs, 0 based on Foata normal form. 2/423 useless extension candidates. Maximal degree in co-relation 3110. Up to 105 conditions per place. [2021-03-25 08:04:08,008 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 84 selfloop transitions, 52 changer transitions 2/148 dead transitions. [2021-03-25 08:04:08,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 148 transitions, 5046 flow [2021-03-25 08:04:08,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:08,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:08,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:08,009 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:08,009 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:08,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:08,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:08,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:08,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,010 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,010 INFO L185 Difference]: Start difference. First operand has 239 places, 135 transitions, 4435 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:08,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 148 transitions, 5046 flow [2021-03-25 08:04:08,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 148 transitions, 4941 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-03-25 08:04:08,052 INFO L241 Difference]: Finished difference. Result has 244 places, 140 transitions, 4671 flow [2021-03-25 08:04:08,052 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4340, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4671, PETRI_PLACES=244, PETRI_TRANSITIONS=140} [2021-03-25 08:04:08,052 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 212 predicate places. [2021-03-25 08:04:08,052 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:08,052 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 244 places, 140 transitions, 4671 flow [2021-03-25 08:04:08,052 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 244 places, 140 transitions, 4671 flow [2021-03-25 08:04:08,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 243 places, 140 transitions, 4671 flow [2021-03-25 08:04:08,087 INFO L129 PetriNetUnfolder]: 0/412 cut-off events. [2021-03-25 08:04:08,087 INFO L130 PetriNetUnfolder]: For 12396/12418 co-relation queries the response was YES. [2021-03-25 08:04:08,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2959 conditions, 412 events. 0/412 cut-off events. For 12396/12418 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4136 event pairs, 0 based on Foata normal form. 1/410 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2021-03-25 08:04:08,090 INFO L142 LiptonReduction]: Number of co-enabled transitions 278 [2021-03-25 08:04:08,094 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:08,094 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:08,095 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-03-25 08:04:08,095 INFO L480 AbstractCegarLoop]: Abstraction has has 243 places, 140 transitions, 4671 flow [2021-03-25 08:04:08,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,095 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:08,095 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:08,095 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-03-25 08:04:08,095 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:08,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:08,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1559539296, now seen corresponding path program 67 times [2021-03-25 08:04:08,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:08,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95292351] [2021-03-25 08:04:08,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:08,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:08,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:08,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:08,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:08,112 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:08,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:08,125 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:08,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:08,143 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:08,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:08,158 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:08,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:08,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:08,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95292351] [2021-03-25 08:04:08,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:08,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:08,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374662147] [2021-03-25 08:04:08,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:08,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:08,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:08,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:08,175 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:08,176 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 140 transitions, 4671 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,176 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:08,176 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:08,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:08,256 INFO L129 PetriNetUnfolder]: 1/413 cut-off events. [2021-03-25 08:04:08,256 INFO L130 PetriNetUnfolder]: For 12607/12643 co-relation queries the response was YES. [2021-03-25 08:04:08,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3163 conditions, 413 events. 1/413 cut-off events. For 12607/12643 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4082 event pairs, 0 based on Foata normal form. 7/420 useless extension candidates. Maximal degree in co-relation 3091. Up to 105 conditions per place. [2021-03-25 08:04:08,258 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 86 selfloop transitions, 48 changer transitions 2/146 dead transitions. [2021-03-25 08:04:08,258 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 146 transitions, 5021 flow [2021-03-25 08:04:08,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:08,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:08,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:08,258 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:08,258 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:08,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:08,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:08,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:08,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,259 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,259 INFO L185 Difference]: Start difference. First operand has 243 places, 140 transitions, 4671 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:08,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 146 transitions, 5021 flow [2021-03-25 08:04:08,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 146 transitions, 4944 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-25 08:04:08,301 INFO L241 Difference]: Finished difference. Result has 248 places, 140 transitions, 4688 flow [2021-03-25 08:04:08,301 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4600, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4688, PETRI_PLACES=248, PETRI_TRANSITIONS=140} [2021-03-25 08:04:08,301 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 216 predicate places. [2021-03-25 08:04:08,301 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:08,301 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 248 places, 140 transitions, 4688 flow [2021-03-25 08:04:08,301 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 248 places, 140 transitions, 4688 flow [2021-03-25 08:04:08,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 247 places, 140 transitions, 4688 flow [2021-03-25 08:04:08,336 INFO L129 PetriNetUnfolder]: 0/405 cut-off events. [2021-03-25 08:04:08,336 INFO L130 PetriNetUnfolder]: For 12438/12460 co-relation queries the response was YES. [2021-03-25 08:04:08,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2936 conditions, 405 events. 0/405 cut-off events. For 12438/12460 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4027 event pairs, 0 based on Foata normal form. 1/403 useless extension candidates. Maximal degree in co-relation 0. Up to 48 conditions per place. [2021-03-25 08:04:08,339 INFO L142 LiptonReduction]: Number of co-enabled transitions 268 [2021-03-25 08:04:08,343 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:08,343 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:08,344 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-03-25 08:04:08,344 INFO L480 AbstractCegarLoop]: Abstraction has has 247 places, 140 transitions, 4688 flow [2021-03-25 08:04:08,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,344 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:08,344 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:08,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-03-25 08:04:08,344 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:08,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:08,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1516186822, now seen corresponding path program 68 times [2021-03-25 08:04:08,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:08,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276832218] [2021-03-25 08:04:08,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:08,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:08,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:08,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:08,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:08,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:08,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:08,360 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:08,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:08,377 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:08,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:08,391 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:08,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:08,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:08,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276832218] [2021-03-25 08:04:08,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:08,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:08,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436657877] [2021-03-25 08:04:08,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:08,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:08,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:08,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:08,405 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:08,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 140 transitions, 4688 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:08,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:08,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:08,481 INFO L129 PetriNetUnfolder]: 1/406 cut-off events. [2021-03-25 08:04:08,481 INFO L130 PetriNetUnfolder]: For 12628/12664 co-relation queries the response was YES. [2021-03-25 08:04:08,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3137 conditions, 406 events. 1/406 cut-off events. For 12628/12664 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3994 event pairs, 0 based on Foata normal form. 11/417 useless extension candidates. Maximal degree in co-relation 3064. Up to 82 conditions per place. [2021-03-25 08:04:08,483 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 74 selfloop transitions, 57 changer transitions 3/144 dead transitions. [2021-03-25 08:04:08,483 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 144 transitions, 4982 flow [2021-03-25 08:04:08,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:08,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:08,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:04:08,484 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:04:08,484 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:04:08,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:04:08,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:08,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:04:08,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,485 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,485 INFO L185 Difference]: Start difference. First operand has 247 places, 140 transitions, 4688 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:04:08,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 144 transitions, 4982 flow [2021-03-25 08:04:08,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 144 transitions, 4907 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-25 08:04:08,528 INFO L241 Difference]: Finished difference. Result has 251 places, 137 transitions, 4608 flow [2021-03-25 08:04:08,529 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4619, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4608, PETRI_PLACES=251, PETRI_TRANSITIONS=137} [2021-03-25 08:04:08,529 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 219 predicate places. [2021-03-25 08:04:08,529 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:08,529 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 137 transitions, 4608 flow [2021-03-25 08:04:08,529 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 137 transitions, 4608 flow [2021-03-25 08:04:08,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 246 places, 137 transitions, 4608 flow [2021-03-25 08:04:08,563 INFO L129 PetriNetUnfolder]: 0/397 cut-off events. [2021-03-25 08:04:08,563 INFO L130 PetriNetUnfolder]: For 12185/12205 co-relation queries the response was YES. [2021-03-25 08:04:08,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2891 conditions, 397 events. 0/397 cut-off events. For 12185/12205 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3914 event pairs, 0 based on Foata normal form. 1/396 useless extension candidates. Maximal degree in co-relation 0. Up to 47 conditions per place. [2021-03-25 08:04:08,565 INFO L142 LiptonReduction]: Number of co-enabled transitions 252 [2021-03-25 08:04:08,570 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:08,570 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:08,570 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-25 08:04:08,570 INFO L480 AbstractCegarLoop]: Abstraction has has 246 places, 137 transitions, 4608 flow [2021-03-25 08:04:08,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,570 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:08,570 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:08,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-03-25 08:04:08,571 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:08,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:08,571 INFO L82 PathProgramCache]: Analyzing trace with hash 150324154, now seen corresponding path program 69 times [2021-03-25 08:04:08,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:08,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812256660] [2021-03-25 08:04:08,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:08,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:08,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:08,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:08,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:08,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:08,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:08,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:08,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:04:08,599 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:08,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:08,620 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:08,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:08,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:08,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812256660] [2021-03-25 08:04:08,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:08,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:08,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298333407] [2021-03-25 08:04:08,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:08,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:08,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:08,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:08,634 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:08,635 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 137 transitions, 4608 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,635 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:08,635 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:08,635 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:08,720 INFO L129 PetriNetUnfolder]: 1/398 cut-off events. [2021-03-25 08:04:08,720 INFO L130 PetriNetUnfolder]: For 12217/12229 co-relation queries the response was YES. [2021-03-25 08:04:08,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3088 conditions, 398 events. 1/398 cut-off events. For 12217/12229 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3909 event pairs, 0 based on Foata normal form. 2/400 useless extension candidates. Maximal degree in co-relation 3015. Up to 82 conditions per place. [2021-03-25 08:04:08,722 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 74 selfloop transitions, 55 changer transitions 2/141 dead transitions. [2021-03-25 08:04:08,722 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 141 transitions, 4896 flow [2021-03-25 08:04:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:08,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:08,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:08,722 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:08,722 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:08,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:08,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:08,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:08,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,723 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,723 INFO L185 Difference]: Start difference. First operand has 246 places, 137 transitions, 4608 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:08,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 141 transitions, 4896 flow [2021-03-25 08:04:08,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 141 transitions, 4767 flow, removed 18 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:08,764 INFO L241 Difference]: Finished difference. Result has 248 places, 135 transitions, 4504 flow [2021-03-25 08:04:08,765 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4485, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4504, PETRI_PLACES=248, PETRI_TRANSITIONS=135} [2021-03-25 08:04:08,765 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 216 predicate places. [2021-03-25 08:04:08,765 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:08,765 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 248 places, 135 transitions, 4504 flow [2021-03-25 08:04:08,765 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 248 places, 135 transitions, 4504 flow [2021-03-25 08:04:08,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 246 places, 135 transitions, 4504 flow [2021-03-25 08:04:08,797 INFO L129 PetriNetUnfolder]: 0/390 cut-off events. [2021-03-25 08:04:08,798 INFO L130 PetriNetUnfolder]: For 11512/11532 co-relation queries the response was YES. [2021-03-25 08:04:08,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2847 conditions, 390 events. 0/390 cut-off events. For 11512/11532 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3828 event pairs, 0 based on Foata normal form. 1/389 useless extension candidates. Maximal degree in co-relation 0. Up to 46 conditions per place. [2021-03-25 08:04:08,800 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-25 08:04:08,804 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:08,805 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:08,805 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-03-25 08:04:08,805 INFO L480 AbstractCegarLoop]: Abstraction has has 246 places, 135 transitions, 4504 flow [2021-03-25 08:04:08,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,805 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:08,805 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:08,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-03-25 08:04:08,805 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:08,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:08,805 INFO L82 PathProgramCache]: Analyzing trace with hash 2105077668, now seen corresponding path program 70 times [2021-03-25 08:04:08,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:08,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894483215] [2021-03-25 08:04:08,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:08,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:08,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:08,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:08,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:08,819 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:08,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:08,831 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:08,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:08,841 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:08,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:08,855 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:08,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:08,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:08,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894483215] [2021-03-25 08:04:08,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:08,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:08,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892704539] [2021-03-25 08:04:08,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:08,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:08,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:08,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:08,869 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:08,869 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 135 transitions, 4504 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,869 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:08,869 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:08,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:08,945 INFO L129 PetriNetUnfolder]: 1/391 cut-off events. [2021-03-25 08:04:08,945 INFO L130 PetriNetUnfolder]: For 11734/11770 co-relation queries the response was YES. [2021-03-25 08:04:08,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3041 conditions, 391 events. 1/391 cut-off events. For 11734/11770 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3799 event pairs, 0 based on Foata normal form. 7/398 useless extension candidates. Maximal degree in co-relation 2970. Up to 105 conditions per place. [2021-03-25 08:04:08,947 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 86 selfloop transitions, 41 changer transitions 3/140 dead transitions. [2021-03-25 08:04:08,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 140 transitions, 4821 flow [2021-03-25 08:04:08,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:08,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:08,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:08,947 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:08,947 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:08,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:08,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:08,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:08,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,948 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:08,948 INFO L185 Difference]: Start difference. First operand has 246 places, 135 transitions, 4504 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:08,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 140 transitions, 4821 flow [2021-03-25 08:04:08,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 140 transitions, 4690 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:08,987 INFO L241 Difference]: Finished difference. Result has 249 places, 133 transitions, 4404 flow [2021-03-25 08:04:08,988 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4379, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4404, PETRI_PLACES=249, PETRI_TRANSITIONS=133} [2021-03-25 08:04:08,988 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 217 predicate places. [2021-03-25 08:04:08,988 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:08,988 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 249 places, 133 transitions, 4404 flow [2021-03-25 08:04:08,988 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 249 places, 133 transitions, 4404 flow [2021-03-25 08:04:08,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 248 places, 133 transitions, 4404 flow [2021-03-25 08:04:09,020 INFO L129 PetriNetUnfolder]: 0/381 cut-off events. [2021-03-25 08:04:09,020 INFO L130 PetriNetUnfolder]: For 11177/11197 co-relation queries the response was YES. [2021-03-25 08:04:09,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2770 conditions, 381 events. 0/381 cut-off events. For 11177/11197 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3744 event pairs, 0 based on Foata normal form. 1/380 useless extension candidates. Maximal degree in co-relation 0. Up to 45 conditions per place. [2021-03-25 08:04:09,022 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-25 08:04:09,027 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:09,027 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:09,027 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-25 08:04:09,027 INFO L480 AbstractCegarLoop]: Abstraction has has 248 places, 133 transitions, 4404 flow [2021-03-25 08:04:09,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,027 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:09,027 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:09,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-03-25 08:04:09,028 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:09,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:09,028 INFO L82 PathProgramCache]: Analyzing trace with hash -704982500, now seen corresponding path program 71 times [2021-03-25 08:04:09,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:09,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922265402] [2021-03-25 08:04:09,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:09,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:09,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:09,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:09,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:09,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:09,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:09,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:09,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:04:09,054 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:09,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:09,067 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:09,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:09,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:09,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922265402] [2021-03-25 08:04:09,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:09,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:09,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035139815] [2021-03-25 08:04:09,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:09,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:09,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:09,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:09,081 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:09,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 133 transitions, 4404 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:09,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:09,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:09,167 INFO L129 PetriNetUnfolder]: 1/382 cut-off events. [2021-03-25 08:04:09,167 INFO L130 PetriNetUnfolder]: For 11407/11443 co-relation queries the response was YES. [2021-03-25 08:04:09,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2960 conditions, 382 events. 1/382 cut-off events. For 11407/11443 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3708 event pairs, 0 based on Foata normal form. 11/393 useless extension candidates. Maximal degree in co-relation 2888. Up to 80 conditions per place. [2021-03-25 08:04:09,168 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 70 selfloop transitions, 53 changer transitions 4/137 dead transitions. [2021-03-25 08:04:09,168 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 137 transitions, 4684 flow [2021-03-25 08:04:09,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:09,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:09,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:04:09,169 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:04:09,169 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:04:09,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:04:09,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:09,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:04:09,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,170 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,170 INFO L185 Difference]: Start difference. First operand has 248 places, 133 transitions, 4404 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:04:09,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 137 transitions, 4684 flow [2021-03-25 08:04:09,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 137 transitions, 4598 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-25 08:04:09,208 INFO L241 Difference]: Finished difference. Result has 251 places, 129 transitions, 4296 flow [2021-03-25 08:04:09,208 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4324, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4296, PETRI_PLACES=251, PETRI_TRANSITIONS=129} [2021-03-25 08:04:09,208 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 219 predicate places. [2021-03-25 08:04:09,208 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:09,208 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 129 transitions, 4296 flow [2021-03-25 08:04:09,209 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 129 transitions, 4296 flow [2021-03-25 08:04:09,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 246 places, 129 transitions, 4296 flow [2021-03-25 08:04:09,240 INFO L129 PetriNetUnfolder]: 0/371 cut-off events. [2021-03-25 08:04:09,240 INFO L130 PetriNetUnfolder]: For 10852/10864 co-relation queries the response was YES. [2021-03-25 08:04:09,240 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2704 conditions, 371 events. 0/371 cut-off events. For 10852/10864 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3600 event pairs, 0 based on Foata normal form. 0/368 useless extension candidates. Maximal degree in co-relation 0. Up to 44 conditions per place. [2021-03-25 08:04:09,242 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-25 08:04:09,246 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:09,246 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:09,246 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-03-25 08:04:09,247 INFO L480 AbstractCegarLoop]: Abstraction has has 246 places, 129 transitions, 4296 flow [2021-03-25 08:04:09,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,247 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:09,247 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:09,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-03-25 08:04:09,247 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:09,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:09,247 INFO L82 PathProgramCache]: Analyzing trace with hash -936633184, now seen corresponding path program 72 times [2021-03-25 08:04:09,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:09,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9588383] [2021-03-25 08:04:09,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:09,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:09,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:09,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:09,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:09,256 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:09,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:09,268 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:09,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:09,284 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:09,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:09,297 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:09,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:09,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:09,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9588383] [2021-03-25 08:04:09,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:09,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:09,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127678155] [2021-03-25 08:04:09,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:09,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:09,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:09,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:09,311 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:09,311 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 129 transitions, 4296 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,311 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:09,311 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:09,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:09,391 INFO L129 PetriNetUnfolder]: 1/372 cut-off events. [2021-03-25 08:04:09,392 INFO L130 PetriNetUnfolder]: For 10954/10966 co-relation queries the response was YES. [2021-03-25 08:04:09,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2889 conditions, 372 events. 1/372 cut-off events. For 10954/10966 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3561 event pairs, 0 based on Foata normal form. 2/374 useless extension candidates. Maximal degree in co-relation 2817. Up to 102 conditions per place. [2021-03-25 08:04:09,393 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 78 selfloop transitions, 41 changer transitions 3/132 dead transitions. [2021-03-25 08:04:09,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 132 transitions, 4562 flow [2021-03-25 08:04:09,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:09,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:09,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:04:09,394 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:04:09,394 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:04:09,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:04:09,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:09,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:04:09,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,395 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,395 INFO L185 Difference]: Start difference. First operand has 246 places, 129 transitions, 4296 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:04:09,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 132 transitions, 4562 flow [2021-03-25 08:04:09,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 132 transitions, 4434 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:09,433 INFO L241 Difference]: Finished difference. Result has 248 places, 126 transitions, 4144 flow [2021-03-25 08:04:09,433 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4172, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4144, PETRI_PLACES=248, PETRI_TRANSITIONS=126} [2021-03-25 08:04:09,434 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 216 predicate places. [2021-03-25 08:04:09,434 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:09,434 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 248 places, 126 transitions, 4144 flow [2021-03-25 08:04:09,434 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 248 places, 126 transitions, 4144 flow [2021-03-25 08:04:09,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 245 places, 126 transitions, 4144 flow [2021-03-25 08:04:09,464 INFO L129 PetriNetUnfolder]: 0/362 cut-off events. [2021-03-25 08:04:09,464 INFO L130 PetriNetUnfolder]: For 10300/10312 co-relation queries the response was YES. [2021-03-25 08:04:09,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2623 conditions, 362 events. 0/362 cut-off events. For 10300/10312 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3458 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 0. Up to 43 conditions per place. [2021-03-25 08:04:09,466 INFO L142 LiptonReduction]: Number of co-enabled transitions 228 [2021-03-25 08:04:09,470 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:09,470 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:09,470 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-03-25 08:04:09,470 INFO L480 AbstractCegarLoop]: Abstraction has has 245 places, 126 transitions, 4144 flow [2021-03-25 08:04:09,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,471 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:09,471 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:09,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-03-25 08:04:09,471 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:09,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:09,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1161405578, now seen corresponding path program 73 times [2021-03-25 08:04:09,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:09,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228943001] [2021-03-25 08:04:09,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:09,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:09,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:09,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:09,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:09,480 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:09,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:09,492 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:09,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:09,506 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:09,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:09,520 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:09,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:09,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228943001] [2021-03-25 08:04:09,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:09,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:09,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689537798] [2021-03-25 08:04:09,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:09,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:09,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:09,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:09,534 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:09,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 126 transitions, 4144 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:09,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:09,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:09,604 INFO L129 PetriNetUnfolder]: 1/363 cut-off events. [2021-03-25 08:04:09,604 INFO L130 PetriNetUnfolder]: For 10386/10398 co-relation queries the response was YES. [2021-03-25 08:04:09,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2804 conditions, 363 events. 1/363 cut-off events. For 10386/10398 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3458 event pairs, 0 based on Foata normal form. 2/365 useless extension candidates. Maximal degree in co-relation 2733. Up to 102 conditions per place. [2021-03-25 08:04:09,606 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 75 selfloop transitions, 40 changer transitions 4/129 dead transitions. [2021-03-25 08:04:09,606 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 129 transitions, 4404 flow [2021-03-25 08:04:09,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:09,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:09,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 305 transitions. [2021-03-25 08:04:09,607 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8221024258760108 [2021-03-25 08:04:09,607 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 305 transitions. [2021-03-25 08:04:09,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 305 transitions. [2021-03-25 08:04:09,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:09,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 305 transitions. [2021-03-25 08:04:09,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.57142857142857) internal successors, (305), 7 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,608 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,608 INFO L185 Difference]: Start difference. First operand has 245 places, 126 transitions, 4144 flow. Second operand 7 states and 305 transitions. [2021-03-25 08:04:09,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 129 transitions, 4404 flow [2021-03-25 08:04:09,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 129 transitions, 4315 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:09,660 INFO L241 Difference]: Finished difference. Result has 247 places, 122 transitions, 4008 flow [2021-03-25 08:04:09,660 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4059, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4008, PETRI_PLACES=247, PETRI_TRANSITIONS=122} [2021-03-25 08:04:09,661 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 215 predicate places. [2021-03-25 08:04:09,661 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:09,661 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 247 places, 122 transitions, 4008 flow [2021-03-25 08:04:09,661 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 247 places, 122 transitions, 4008 flow [2021-03-25 08:04:09,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 242 places, 122 transitions, 4008 flow [2021-03-25 08:04:09,689 INFO L129 PetriNetUnfolder]: 0/352 cut-off events. [2021-03-25 08:04:09,690 INFO L130 PetriNetUnfolder]: For 9938/9949 co-relation queries the response was YES. [2021-03-25 08:04:09,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2544 conditions, 352 events. 0/352 cut-off events. For 9938/9949 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3342 event pairs, 0 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 0. Up to 42 conditions per place. [2021-03-25 08:04:09,692 INFO L142 LiptonReduction]: Number of co-enabled transitions 224 [2021-03-25 08:04:09,696 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:09,696 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:09,696 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-25 08:04:09,696 INFO L480 AbstractCegarLoop]: Abstraction has has 242 places, 122 transitions, 4008 flow [2021-03-25 08:04:09,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,696 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:09,696 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:09,696 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-03-25 08:04:09,696 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:09,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:09,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1599964466, now seen corresponding path program 74 times [2021-03-25 08:04:09,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:09,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412718023] [2021-03-25 08:04:09,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:09,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:09,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:09,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:09,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:09,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:09,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:09,711 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:09,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:09,726 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:09,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:09,739 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:09,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:09,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:09,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412718023] [2021-03-25 08:04:09,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:09,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:09,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705264039] [2021-03-25 08:04:09,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:09,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:09,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:09,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:09,753 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:09,753 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 122 transitions, 4008 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,753 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:09,753 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:09,753 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:09,843 INFO L129 PetriNetUnfolder]: 0/403 cut-off events. [2021-03-25 08:04:09,843 INFO L130 PetriNetUnfolder]: For 11628/11643 co-relation queries the response was YES. [2021-03-25 08:04:09,843 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3097 conditions, 403 events. 0/403 cut-off events. For 11628/11643 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3960 event pairs, 0 based on Foata normal form. 1/403 useless extension candidates. Maximal degree in co-relation 0. Up to 72 conditions per place. [2021-03-25 08:04:09,844 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 75 selfloop transitions, 57 changer transitions 2/144 dead transitions. [2021-03-25 08:04:09,844 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 144 transitions, 4995 flow [2021-03-25 08:04:09,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:09,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:09,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:09,845 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:09,845 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:09,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:09,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:09,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:09,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,846 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,846 INFO L185 Difference]: Start difference. First operand has 242 places, 122 transitions, 4008 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:09,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 144 transitions, 4995 flow [2021-03-25 08:04:09,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 144 transitions, 4870 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:09,884 INFO L241 Difference]: Finished difference. Result has 248 places, 133 transitions, 4554 flow [2021-03-25 08:04:09,885 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3913, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4554, PETRI_PLACES=248, PETRI_TRANSITIONS=133} [2021-03-25 08:04:09,885 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 216 predicate places. [2021-03-25 08:04:09,885 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:09,885 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 248 places, 133 transitions, 4554 flow [2021-03-25 08:04:09,885 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 248 places, 133 transitions, 4554 flow [2021-03-25 08:04:09,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 247 places, 133 transitions, 4554 flow [2021-03-25 08:04:09,919 INFO L129 PetriNetUnfolder]: 0/396 cut-off events. [2021-03-25 08:04:09,919 INFO L130 PetriNetUnfolder]: For 11959/11968 co-relation queries the response was YES. [2021-03-25 08:04:09,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2938 conditions, 396 events. 0/396 cut-off events. For 11959/11968 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3899 event pairs, 0 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 0. Up to 47 conditions per place. [2021-03-25 08:04:09,922 INFO L142 LiptonReduction]: Number of co-enabled transitions 230 [2021-03-25 08:04:09,927 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:09,927 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:09,927 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-03-25 08:04:09,927 INFO L480 AbstractCegarLoop]: Abstraction has has 247 places, 133 transitions, 4554 flow [2021-03-25 08:04:09,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,927 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:09,927 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:09,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-03-25 08:04:09,928 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:09,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:09,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1594237344, now seen corresponding path program 75 times [2021-03-25 08:04:09,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:09,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835858682] [2021-03-25 08:04:09,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:09,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:09,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:09,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:09,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:09,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:09,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:09,942 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:09,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:09,957 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:09,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:09,970 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:09,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:09,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:09,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835858682] [2021-03-25 08:04:09,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:09,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:09,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293090063] [2021-03-25 08:04:09,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:09,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:09,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:09,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:09,985 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:09,985 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 133 transitions, 4554 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:09,985 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:09,985 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:09,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:10,063 INFO L129 PetriNetUnfolder]: 0/395 cut-off events. [2021-03-25 08:04:10,063 INFO L130 PetriNetUnfolder]: For 12049/12067 co-relation queries the response was YES. [2021-03-25 08:04:10,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3113 conditions, 395 events. 0/395 cut-off events. For 12049/12067 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3865 event pairs, 0 based on Foata normal form. 2/397 useless extension candidates. Maximal degree in co-relation 0. Up to 100 conditions per place. [2021-03-25 08:04:10,064 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 81 selfloop transitions, 50 changer transitions 2/143 dead transitions. [2021-03-25 08:04:10,064 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 143 transitions, 5050 flow [2021-03-25 08:04:10,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:10,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:10,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:10,065 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:10,065 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:10,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:10,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:10,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:10,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,066 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,066 INFO L185 Difference]: Start difference. First operand has 247 places, 133 transitions, 4554 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:10,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 143 transitions, 5050 flow [2021-03-25 08:04:10,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 143 transitions, 5012 flow, removed 9 selfloop flow, removed 3 redundant places. [2021-03-25 08:04:10,107 INFO L241 Difference]: Finished difference. Result has 253 places, 134 transitions, 4693 flow [2021-03-25 08:04:10,107 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4523, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4693, PETRI_PLACES=253, PETRI_TRANSITIONS=134} [2021-03-25 08:04:10,107 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 221 predicate places. [2021-03-25 08:04:10,107 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:10,107 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 253 places, 134 transitions, 4693 flow [2021-03-25 08:04:10,108 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 253 places, 134 transitions, 4693 flow [2021-03-25 08:04:10,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 252 places, 134 transitions, 4693 flow [2021-03-25 08:04:10,141 INFO L129 PetriNetUnfolder]: 0/388 cut-off events. [2021-03-25 08:04:10,141 INFO L130 PetriNetUnfolder]: For 12577/12585 co-relation queries the response was YES. [2021-03-25 08:04:10,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2945 conditions, 388 events. 0/388 cut-off events. For 12577/12585 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3786 event pairs, 0 based on Foata normal form. 0/386 useless extension candidates. Maximal degree in co-relation 0. Up to 46 conditions per place. [2021-03-25 08:04:10,144 INFO L142 LiptonReduction]: Number of co-enabled transitions 236 [2021-03-25 08:04:10,148 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:10,148 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:10,148 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-25 08:04:10,149 INFO L480 AbstractCegarLoop]: Abstraction has has 252 places, 134 transitions, 4693 flow [2021-03-25 08:04:10,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,149 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:10,149 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:10,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-03-25 08:04:10,149 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:10,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:10,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1788249828, now seen corresponding path program 76 times [2021-03-25 08:04:10,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:10,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565025563] [2021-03-25 08:04:10,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:10,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:10,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:10,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:10,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:10,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:10,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:10,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:10,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:04:10,173 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:10,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:10,186 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:10,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:10,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:10,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565025563] [2021-03-25 08:04:10,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:10,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:10,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12532946] [2021-03-25 08:04:10,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:10,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:10,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:10,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:10,200 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:10,200 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 134 transitions, 4693 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,200 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:10,200 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:10,200 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:10,285 INFO L129 PetriNetUnfolder]: 0/387 cut-off events. [2021-03-25 08:04:10,285 INFO L130 PetriNetUnfolder]: For 12721/12744 co-relation queries the response was YES. [2021-03-25 08:04:10,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3117 conditions, 387 events. 0/387 cut-off events. For 12721/12744 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3766 event pairs, 0 based on Foata normal form. 5/392 useless extension candidates. Maximal degree in co-relation 0. Up to 100 conditions per place. [2021-03-25 08:04:10,286 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 80 selfloop transitions, 49 changer transitions 2/141 dead transitions. [2021-03-25 08:04:10,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 141 transitions, 5086 flow [2021-03-25 08:04:10,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:10,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:10,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:10,286 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:10,286 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:10,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:10,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:10,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:10,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,287 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,287 INFO L185 Difference]: Start difference. First operand has 252 places, 134 transitions, 4693 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:10,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 141 transitions, 5086 flow [2021-03-25 08:04:10,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 141 transitions, 4998 flow, removed 10 selfloop flow, removed 3 redundant places. [2021-03-25 08:04:10,329 INFO L241 Difference]: Finished difference. Result has 258 places, 135 transitions, 4747 flow [2021-03-25 08:04:10,329 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4611, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4747, PETRI_PLACES=258, PETRI_TRANSITIONS=135} [2021-03-25 08:04:10,329 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 226 predicate places. [2021-03-25 08:04:10,329 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:10,329 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 258 places, 135 transitions, 4747 flow [2021-03-25 08:04:10,329 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 258 places, 135 transitions, 4747 flow [2021-03-25 08:04:10,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 257 places, 135 transitions, 4747 flow [2021-03-25 08:04:10,363 INFO L129 PetriNetUnfolder]: 0/381 cut-off events. [2021-03-25 08:04:10,363 INFO L130 PetriNetUnfolder]: For 12287/12296 co-relation queries the response was YES. [2021-03-25 08:04:10,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2934 conditions, 381 events. 0/381 cut-off events. For 12287/12296 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3703 event pairs, 0 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 0. Up to 45 conditions per place. [2021-03-25 08:04:10,366 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-25 08:04:10,371 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:10,371 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:10,371 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-03-25 08:04:10,371 INFO L480 AbstractCegarLoop]: Abstraction has has 257 places, 135 transitions, 4747 flow [2021-03-25 08:04:10,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,371 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:10,371 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:10,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-03-25 08:04:10,371 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:10,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:10,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1243990850, now seen corresponding path program 77 times [2021-03-25 08:04:10,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:10,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950521876] [2021-03-25 08:04:10,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:10,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:10,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:10,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:10,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:10,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:10,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:10,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:10,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:04:10,395 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:10,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:10,408 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:10,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:10,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950521876] [2021-03-25 08:04:10,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:10,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:10,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153276502] [2021-03-25 08:04:10,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:10,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:10,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:10,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:10,421 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:10,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 135 transitions, 4747 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:10,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:10,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:10,511 INFO L129 PetriNetUnfolder]: 0/380 cut-off events. [2021-03-25 08:04:10,511 INFO L130 PetriNetUnfolder]: For 12418/12441 co-relation queries the response was YES. [2021-03-25 08:04:10,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3103 conditions, 380 events. 0/380 cut-off events. For 12418/12441 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3660 event pairs, 0 based on Foata normal form. 5/385 useless extension candidates. Maximal degree in co-relation 0. Up to 100 conditions per place. [2021-03-25 08:04:10,512 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 79 selfloop transitions, 47 changer transitions 3/139 dead transitions. [2021-03-25 08:04:10,512 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 139 transitions, 5044 flow [2021-03-25 08:04:10,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:10,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:10,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:10,512 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:10,512 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:10,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:10,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:10,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:10,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,513 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,513 INFO L185 Difference]: Start difference. First operand has 257 places, 135 transitions, 4747 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:10,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 139 transitions, 5044 flow [2021-03-25 08:04:10,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 139 transitions, 4943 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-03-25 08:04:10,557 INFO L241 Difference]: Finished difference. Result has 260 places, 132 transitions, 4629 flow [2021-03-25 08:04:10,558 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4652, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4629, PETRI_PLACES=260, PETRI_TRANSITIONS=132} [2021-03-25 08:04:10,558 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 228 predicate places. [2021-03-25 08:04:10,558 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:10,558 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 260 places, 132 transitions, 4629 flow [2021-03-25 08:04:10,558 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 260 places, 132 transitions, 4629 flow [2021-03-25 08:04:10,559 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 259 places, 132 transitions, 4629 flow [2021-03-25 08:04:10,591 INFO L129 PetriNetUnfolder]: 0/372 cut-off events. [2021-03-25 08:04:10,591 INFO L130 PetriNetUnfolder]: For 11803/11812 co-relation queries the response was YES. [2021-03-25 08:04:10,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2871 conditions, 372 events. 0/372 cut-off events. For 11803/11812 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3598 event pairs, 0 based on Foata normal form. 0/370 useless extension candidates. Maximal degree in co-relation 0. Up to 44 conditions per place. [2021-03-25 08:04:10,594 INFO L142 LiptonReduction]: Number of co-enabled transitions 226 [2021-03-25 08:04:10,598 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:10,598 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:10,599 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-25 08:04:10,599 INFO L480 AbstractCegarLoop]: Abstraction has has 259 places, 132 transitions, 4629 flow [2021-03-25 08:04:10,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,599 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:10,599 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:10,599 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-03-25 08:04:10,599 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:10,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:10,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1093618200, now seen corresponding path program 78 times [2021-03-25 08:04:10,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:10,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953488155] [2021-03-25 08:04:10,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:10,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:10,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:10,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:10,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:10,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:10,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:10,619 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:10,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:10,634 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:10,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:10,647 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:10,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:10,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:10,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953488155] [2021-03-25 08:04:10,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:10,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:10,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146312714] [2021-03-25 08:04:10,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:10,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:10,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:10,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:10,661 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:10,661 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 132 transitions, 4629 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,661 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:10,661 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:10,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:10,748 INFO L129 PetriNetUnfolder]: 0/371 cut-off events. [2021-03-25 08:04:10,748 INFO L130 PetriNetUnfolder]: For 11933/11956 co-relation queries the response was YES. [2021-03-25 08:04:10,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3036 conditions, 371 events. 0/371 cut-off events. For 11933/11956 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3541 event pairs, 0 based on Foata normal form. 5/376 useless extension candidates. Maximal degree in co-relation 0. Up to 100 conditions per place. [2021-03-25 08:04:10,749 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 76 selfloop transitions, 47 changer transitions 3/136 dead transitions. [2021-03-25 08:04:10,749 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 136 transitions, 4920 flow [2021-03-25 08:04:10,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:10,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:10,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:04:10,749 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:04:10,750 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:04:10,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:04:10,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:10,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:04:10,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,750 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,750 INFO L185 Difference]: Start difference. First operand has 259 places, 132 transitions, 4629 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:04:10,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 136 transitions, 4920 flow [2021-03-25 08:04:10,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 136 transitions, 4826 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-25 08:04:10,792 INFO L241 Difference]: Finished difference. Result has 262 places, 129 transitions, 4516 flow [2021-03-25 08:04:10,792 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4541, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4516, PETRI_PLACES=262, PETRI_TRANSITIONS=129} [2021-03-25 08:04:10,792 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 230 predicate places. [2021-03-25 08:04:10,792 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:10,792 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 262 places, 129 transitions, 4516 flow [2021-03-25 08:04:10,792 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 262 places, 129 transitions, 4516 flow [2021-03-25 08:04:10,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 258 places, 129 transitions, 4516 flow [2021-03-25 08:04:10,824 INFO L129 PetriNetUnfolder]: 0/363 cut-off events. [2021-03-25 08:04:10,825 INFO L130 PetriNetUnfolder]: For 11460/11469 co-relation queries the response was YES. [2021-03-25 08:04:10,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2806 conditions, 363 events. 0/363 cut-off events. For 11460/11469 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3474 event pairs, 0 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 0. Up to 43 conditions per place. [2021-03-25 08:04:10,827 INFO L142 LiptonReduction]: Number of co-enabled transitions 220 [2021-03-25 08:04:10,833 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:10,833 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:10,833 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-25 08:04:10,833 INFO L480 AbstractCegarLoop]: Abstraction has has 258 places, 129 transitions, 4516 flow [2021-03-25 08:04:10,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,833 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:10,833 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:10,833 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-03-25 08:04:10,833 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:10,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:10,834 INFO L82 PathProgramCache]: Analyzing trace with hash 609892508, now seen corresponding path program 79 times [2021-03-25 08:04:10,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:10,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350622989] [2021-03-25 08:04:10,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:10,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:10,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:10,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:10,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:10,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:10,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:10,855 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:10,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:10,865 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:10,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:10,878 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:10,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:10,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:10,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350622989] [2021-03-25 08:04:10,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:10,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:10,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907482015] [2021-03-25 08:04:10,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:10,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:10,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:10,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:10,892 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:10,892 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 129 transitions, 4516 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,892 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:10,892 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:10,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:10,974 INFO L129 PetriNetUnfolder]: 0/362 cut-off events. [2021-03-25 08:04:10,974 INFO L130 PetriNetUnfolder]: For 11553/11573 co-relation queries the response was YES. [2021-03-25 08:04:10,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2967 conditions, 362 events. 0/362 cut-off events. For 11553/11573 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3442 event pairs, 0 based on Foata normal form. 4/366 useless extension candidates. Maximal degree in co-relation 0. Up to 100 conditions per place. [2021-03-25 08:04:10,975 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 78 selfloop transitions, 42 changer transitions 2/132 dead transitions. [2021-03-25 08:04:10,975 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 132 transitions, 4795 flow [2021-03-25 08:04:10,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:10,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:10,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:04:10,976 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:04:10,976 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:04:10,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:04:10,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:10,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:04:10,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,977 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:10,977 INFO L185 Difference]: Start difference. First operand has 258 places, 129 transitions, 4516 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:04:10,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 132 transitions, 4795 flow [2021-03-25 08:04:11,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 132 transitions, 4701 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:11,019 INFO L241 Difference]: Finished difference. Result has 261 places, 128 transitions, 4457 flow [2021-03-25 08:04:11,019 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4426, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4457, PETRI_PLACES=261, PETRI_TRANSITIONS=128} [2021-03-25 08:04:11,019 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 229 predicate places. [2021-03-25 08:04:11,020 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:11,020 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 261 places, 128 transitions, 4457 flow [2021-03-25 08:04:11,020 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 261 places, 128 transitions, 4457 flow [2021-03-25 08:04:11,021 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 259 places, 128 transitions, 4457 flow [2021-03-25 08:04:11,051 INFO L129 PetriNetUnfolder]: 0/355 cut-off events. [2021-03-25 08:04:11,051 INFO L130 PetriNetUnfolder]: For 11149/11158 co-relation queries the response was YES. [2021-03-25 08:04:11,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2756 conditions, 355 events. 0/355 cut-off events. For 11149/11158 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3377 event pairs, 0 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 0. Up to 42 conditions per place. [2021-03-25 08:04:11,053 INFO L142 LiptonReduction]: Number of co-enabled transitions 218 [2021-03-25 08:04:11,058 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:11,058 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:11,058 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-25 08:04:11,058 INFO L480 AbstractCegarLoop]: Abstraction has has 259 places, 128 transitions, 4457 flow [2021-03-25 08:04:11,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,058 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:11,058 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:11,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-03-25 08:04:11,059 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:11,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:11,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1548607490, now seen corresponding path program 80 times [2021-03-25 08:04:11,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:11,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911228070] [2021-03-25 08:04:11,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:11,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:11,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:11,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:11,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:11,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:11,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:11,077 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:11,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:11,086 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:11,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:11,099 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:11,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:11,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:11,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911228070] [2021-03-25 08:04:11,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:11,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:11,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980552860] [2021-03-25 08:04:11,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:11,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:11,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:11,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:11,113 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:11,113 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 128 transitions, 4457 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:11,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:11,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:11,182 INFO L129 PetriNetUnfolder]: 0/354 cut-off events. [2021-03-25 08:04:11,182 INFO L130 PetriNetUnfolder]: For 11278/11301 co-relation queries the response was YES. [2021-03-25 08:04:11,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2914 conditions, 354 events. 0/354 cut-off events. For 11278/11301 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3339 event pairs, 0 based on Foata normal form. 5/359 useless extension candidates. Maximal degree in co-relation 0. Up to 100 conditions per place. [2021-03-25 08:04:11,183 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 76 selfloop transitions, 38 changer transitions 5/129 dead transitions. [2021-03-25 08:04:11,183 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 129 transitions, 4699 flow [2021-03-25 08:04:11,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:11,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:11,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 304 transitions. [2021-03-25 08:04:11,183 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8194070080862533 [2021-03-25 08:04:11,184 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 304 transitions. [2021-03-25 08:04:11,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 304 transitions. [2021-03-25 08:04:11,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:11,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 304 transitions. [2021-03-25 08:04:11,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.42857142857143) internal successors, (304), 7 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,184 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,184 INFO L185 Difference]: Start difference. First operand has 259 places, 128 transitions, 4457 flow. Second operand 7 states and 304 transitions. [2021-03-25 08:04:11,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 129 transitions, 4699 flow [2021-03-25 08:04:11,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 129 transitions, 4597 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:11,226 INFO L241 Difference]: Finished difference. Result has 261 places, 123 transitions, 4271 flow [2021-03-25 08:04:11,226 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4357, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4271, PETRI_PLACES=261, PETRI_TRANSITIONS=123} [2021-03-25 08:04:11,226 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 229 predicate places. [2021-03-25 08:04:11,226 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:11,226 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 261 places, 123 transitions, 4271 flow [2021-03-25 08:04:11,227 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 261 places, 123 transitions, 4271 flow [2021-03-25 08:04:11,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 256 places, 123 transitions, 4271 flow [2021-03-25 08:04:11,258 INFO L129 PetriNetUnfolder]: 0/344 cut-off events. [2021-03-25 08:04:11,258 INFO L130 PetriNetUnfolder]: For 10642/10644 co-relation queries the response was YES. [2021-03-25 08:04:11,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2649 conditions, 344 events. 0/344 cut-off events. For 10642/10644 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3264 event pairs, 0 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 0. Up to 41 conditions per place. [2021-03-25 08:04:11,260 INFO L142 LiptonReduction]: Number of co-enabled transitions 214 [2021-03-25 08:04:11,264 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:11,264 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:11,265 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-25 08:04:11,265 INFO L480 AbstractCegarLoop]: Abstraction has has 256 places, 123 transitions, 4271 flow [2021-03-25 08:04:11,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,265 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:11,265 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:11,265 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-03-25 08:04:11,266 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:11,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:11,266 INFO L82 PathProgramCache]: Analyzing trace with hash -881931416, now seen corresponding path program 81 times [2021-03-25 08:04:11,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:11,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020092325] [2021-03-25 08:04:11,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:11,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:11,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:11,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:11,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:11,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:11,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:11,283 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:11,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:11,297 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:11,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:11,310 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:11,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:11,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:11,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020092325] [2021-03-25 08:04:11,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:11,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:11,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254749615] [2021-03-25 08:04:11,324 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:11,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:11,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:11,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:11,324 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:11,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 123 transitions, 4271 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:11,324 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:11,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:11,393 INFO L129 PetriNetUnfolder]: 0/343 cut-off events. [2021-03-25 08:04:11,393 INFO L130 PetriNetUnfolder]: For 10717/10723 co-relation queries the response was YES. [2021-03-25 08:04:11,393 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2801 conditions, 343 events. 0/343 cut-off events. For 10717/10723 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3222 event pairs, 0 based on Foata normal form. 3/346 useless extension candidates. Maximal degree in co-relation 0. Up to 59 conditions per place. [2021-03-25 08:04:11,394 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 64 selfloop transitions, 49 changer transitions 3/126 dead transitions. [2021-03-25 08:04:11,394 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 126 transitions, 4515 flow [2021-03-25 08:04:11,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:11,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:11,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:11,395 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:11,395 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:11,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:11,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:11,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:11,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,396 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,396 INFO L185 Difference]: Start difference. First operand has 256 places, 123 transitions, 4271 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:11,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 126 transitions, 4515 flow [2021-03-25 08:04:11,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 126 transitions, 4375 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:11,435 INFO L241 Difference]: Finished difference. Result has 257 places, 120 transitions, 4124 flow [2021-03-25 08:04:11,435 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4137, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4124, PETRI_PLACES=257, PETRI_TRANSITIONS=120} [2021-03-25 08:04:11,435 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 225 predicate places. [2021-03-25 08:04:11,435 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:11,436 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 257 places, 120 transitions, 4124 flow [2021-03-25 08:04:11,436 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 257 places, 120 transitions, 4124 flow [2021-03-25 08:04:11,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 255 places, 120 transitions, 4124 flow [2021-03-25 08:04:11,465 INFO L129 PetriNetUnfolder]: 0/335 cut-off events. [2021-03-25 08:04:11,465 INFO L130 PetriNetUnfolder]: For 10244/10246 co-relation queries the response was YES. [2021-03-25 08:04:11,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2558 conditions, 335 events. 0/335 cut-off events. For 10244/10246 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3139 event pairs, 0 based on Foata normal form. 0/333 useless extension candidates. Maximal degree in co-relation 0. Up to 40 conditions per place. [2021-03-25 08:04:11,468 INFO L142 LiptonReduction]: Number of co-enabled transitions 212 [2021-03-25 08:04:11,472 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:11,472 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:11,472 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-25 08:04:11,473 INFO L480 AbstractCegarLoop]: Abstraction has has 255 places, 120 transitions, 4124 flow [2021-03-25 08:04:11,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,473 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:11,474 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:11,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-03-25 08:04:11,474 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:11,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:11,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1877583166, now seen corresponding path program 82 times [2021-03-25 08:04:11,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:11,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910227387] [2021-03-25 08:04:11,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:11,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:11,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:11,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:11,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:11,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:11,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:11,495 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:11,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:11,505 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:11,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:11,518 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:11,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:11,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:11,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910227387] [2021-03-25 08:04:11,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:11,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:11,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10438665] [2021-03-25 08:04:11,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:11,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:11,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:11,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:11,533 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:11,533 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 120 transitions, 4124 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,533 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:11,533 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:11,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:11,600 INFO L129 PetriNetUnfolder]: 0/334 cut-off events. [2021-03-25 08:04:11,600 INFO L130 PetriNetUnfolder]: For 10260/10260 co-relation queries the response was YES. [2021-03-25 08:04:11,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2706 conditions, 334 events. 0/334 cut-off events. For 10260/10260 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3095 event pairs, 0 based on Foata normal form. 1/335 useless extension candidates. Maximal degree in co-relation 0. Up to 63 conditions per place. [2021-03-25 08:04:11,601 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 64 selfloop transitions, 47 changer transitions 2/123 dead transitions. [2021-03-25 08:04:11,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 123 transitions, 4362 flow [2021-03-25 08:04:11,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:11,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:11,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:11,603 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:11,603 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:11,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:11,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:11,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:11,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,604 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,604 INFO L185 Difference]: Start difference. First operand has 255 places, 120 transitions, 4124 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:11,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 123 transitions, 4362 flow [2021-03-25 08:04:11,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 123 transitions, 4248 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:11,643 INFO L241 Difference]: Finished difference. Result has 256 places, 118 transitions, 4031 flow [2021-03-25 08:04:11,644 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=4016, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4031, PETRI_PLACES=256, PETRI_TRANSITIONS=118} [2021-03-25 08:04:11,644 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 224 predicate places. [2021-03-25 08:04:11,644 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:11,644 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 256 places, 118 transitions, 4031 flow [2021-03-25 08:04:11,644 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 256 places, 118 transitions, 4031 flow [2021-03-25 08:04:11,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 254 places, 118 transitions, 4031 flow [2021-03-25 08:04:11,686 INFO L129 PetriNetUnfolder]: 0/327 cut-off events. [2021-03-25 08:04:11,686 INFO L130 PetriNetUnfolder]: For 9976/9976 co-relation queries the response was YES. [2021-03-25 08:04:11,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2497 conditions, 327 events. 0/327 cut-off events. For 9976/9976 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3053 event pairs, 0 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 0. Up to 39 conditions per place. [2021-03-25 08:04:11,688 INFO L142 LiptonReduction]: Number of co-enabled transitions 212 [2021-03-25 08:04:11,692 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:11,692 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:11,692 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-03-25 08:04:11,692 INFO L480 AbstractCegarLoop]: Abstraction has has 254 places, 118 transitions, 4031 flow [2021-03-25 08:04:11,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,692 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:11,692 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:11,693 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-03-25 08:04:11,693 INFO L428 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:11,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:11,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1543643450, now seen corresponding path program 83 times [2021-03-25 08:04:11,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:11,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900397567] [2021-03-25 08:04:11,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:11,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:11,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:11,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:11,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:11,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:11,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:11,709 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:11,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:11,718 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:11,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:11,731 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:11,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:11,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:11,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900397567] [2021-03-25 08:04:11,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:11,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:11,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370273422] [2021-03-25 08:04:11,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:11,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:11,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:11,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:11,744 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:11,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 118 transitions, 4031 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,745 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:11,745 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:11,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:11,819 INFO L129 PetriNetUnfolder]: 0/326 cut-off events. [2021-03-25 08:04:11,819 INFO L130 PetriNetUnfolder]: For 10091/10097 co-relation queries the response was YES. [2021-03-25 08:04:11,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2642 conditions, 326 events. 0/326 cut-off events. For 10091/10097 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2991 event pairs, 0 based on Foata normal form. 3/329 useless extension candidates. Maximal degree in co-relation 0. Up to 63 conditions per place. [2021-03-25 08:04:11,820 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 64 selfloop transitions, 44 changer transitions 3/121 dead transitions. [2021-03-25 08:04:11,820 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 121 transitions, 4265 flow [2021-03-25 08:04:11,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:11,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:11,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:11,820 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:11,820 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:11,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:11,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:11,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:11,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,821 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,821 INFO L185 Difference]: Start difference. First operand has 254 places, 118 transitions, 4031 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:11,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 121 transitions, 4265 flow [2021-03-25 08:04:11,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 121 transitions, 4143 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-03-25 08:04:11,857 INFO L241 Difference]: Finished difference. Result has 254 places, 115 transitions, 3902 flow [2021-03-25 08:04:11,857 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3915, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3902, PETRI_PLACES=254, PETRI_TRANSITIONS=115} [2021-03-25 08:04:11,857 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 222 predicate places. [2021-03-25 08:04:11,857 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:11,857 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 115 transitions, 3902 flow [2021-03-25 08:04:11,858 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 115 transitions, 3902 flow [2021-03-25 08:04:11,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 252 places, 115 transitions, 3902 flow [2021-03-25 08:04:11,885 INFO L129 PetriNetUnfolder]: 0/318 cut-off events. [2021-03-25 08:04:11,885 INFO L130 PetriNetUnfolder]: For 9688/9690 co-relation queries the response was YES. [2021-03-25 08:04:11,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2418 conditions, 318 events. 0/318 cut-off events. For 9688/9690 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2931 event pairs, 0 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 0. Up to 38 conditions per place. [2021-03-25 08:04:11,888 INFO L142 LiptonReduction]: Number of co-enabled transitions 208 [2021-03-25 08:04:11,891 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:11,891 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:11,892 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-25 08:04:11,892 INFO L480 AbstractCegarLoop]: Abstraction has has 252 places, 115 transitions, 3902 flow [2021-03-25 08:04:11,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,892 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:11,892 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:11,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-03-25 08:04:11,892 INFO L428 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:11,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:11,892 INFO L82 PathProgramCache]: Analyzing trace with hash 354399346, now seen corresponding path program 84 times [2021-03-25 08:04:11,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:11,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541618553] [2021-03-25 08:04:11,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:11,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:11,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:11,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:11,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:11,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:11,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:11,912 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:11,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:11,922 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:11,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:11,937 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:11,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:11,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:11,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541618553] [2021-03-25 08:04:11,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:11,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:11,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978297147] [2021-03-25 08:04:11,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:11,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:11,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:11,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:11,950 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:11,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 115 transitions, 3902 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:11,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:11,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:11,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:12,027 INFO L129 PetriNetUnfolder]: 0/317 cut-off events. [2021-03-25 08:04:12,028 INFO L130 PetriNetUnfolder]: For 9702/9702 co-relation queries the response was YES. [2021-03-25 08:04:12,028 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2559 conditions, 317 events. 0/317 cut-off events. For 9702/9702 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2885 event pairs, 0 based on Foata normal form. 1/318 useless extension candidates. Maximal degree in co-relation 0. Up to 50 conditions per place. [2021-03-25 08:04:12,028 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 57 selfloop transitions, 49 changer transitions 2/118 dead transitions. [2021-03-25 08:04:12,029 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 118 transitions, 4130 flow [2021-03-25 08:04:12,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:12,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:12,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:12,029 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:12,029 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:12,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:12,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:12,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:12,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,030 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,030 INFO L185 Difference]: Start difference. First operand has 252 places, 115 transitions, 3902 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:12,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 118 transitions, 4130 flow [2021-03-25 08:04:12,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 118 transitions, 4046 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:12,066 INFO L241 Difference]: Finished difference. Result has 253 places, 113 transitions, 3842 flow [2021-03-25 08:04:12,066 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3824, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3842, PETRI_PLACES=253, PETRI_TRANSITIONS=113} [2021-03-25 08:04:12,066 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 221 predicate places. [2021-03-25 08:04:12,066 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:12,066 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 253 places, 113 transitions, 3842 flow [2021-03-25 08:04:12,066 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 253 places, 113 transitions, 3842 flow [2021-03-25 08:04:12,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 251 places, 113 transitions, 3842 flow [2021-03-25 08:04:12,095 INFO L129 PetriNetUnfolder]: 0/312 cut-off events. [2021-03-25 08:04:12,096 INFO L130 PetriNetUnfolder]: For 9602/9604 co-relation queries the response was YES. [2021-03-25 08:04:12,096 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2377 conditions, 312 events. 0/312 cut-off events. For 9602/9604 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2857 event pairs, 0 based on Foata normal form. 0/310 useless extension candidates. Maximal degree in co-relation 0. Up to 37 conditions per place. [2021-03-25 08:04:12,098 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-25 08:04:12,101 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:12,101 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:12,102 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-03-25 08:04:12,102 INFO L480 AbstractCegarLoop]: Abstraction has has 251 places, 113 transitions, 3842 flow [2021-03-25 08:04:12,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,102 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:12,102 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:12,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-03-25 08:04:12,102 INFO L428 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:12,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:12,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1429379130, now seen corresponding path program 85 times [2021-03-25 08:04:12,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:12,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982579441] [2021-03-25 08:04:12,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:12,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:12,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:12,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:12,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:12,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:12,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:12,118 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:12,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:12,127 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:12,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:12,140 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:12,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:12,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:12,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982579441] [2021-03-25 08:04:12,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:12,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:12,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314737905] [2021-03-25 08:04:12,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:12,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:12,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:12,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:12,154 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:12,154 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 113 transitions, 3842 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,154 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:12,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:12,155 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:12,229 INFO L129 PetriNetUnfolder]: 0/311 cut-off events. [2021-03-25 08:04:12,230 INFO L130 PetriNetUnfolder]: For 9615/9615 co-relation queries the response was YES. [2021-03-25 08:04:12,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2515 conditions, 311 events. 0/311 cut-off events. For 9615/9615 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2806 event pairs, 0 based on Foata normal form. 1/312 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2021-03-25 08:04:12,230 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 56 selfloop transitions, 47 changer transitions 3/116 dead transitions. [2021-03-25 08:04:12,230 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 116 transitions, 4066 flow [2021-03-25 08:04:12,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:12,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:12,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:12,231 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:12,231 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:12,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:12,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:12,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:12,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,232 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,232 INFO L185 Difference]: Start difference. First operand has 251 places, 113 transitions, 3842 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:12,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 116 transitions, 4066 flow [2021-03-25 08:04:12,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 116 transitions, 3967 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:12,266 INFO L241 Difference]: Finished difference. Result has 252 places, 110 transitions, 3729 flow [2021-03-25 08:04:12,266 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3749, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3729, PETRI_PLACES=252, PETRI_TRANSITIONS=110} [2021-03-25 08:04:12,266 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 220 predicate places. [2021-03-25 08:04:12,266 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:12,266 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 252 places, 110 transitions, 3729 flow [2021-03-25 08:04:12,266 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 252 places, 110 transitions, 3729 flow [2021-03-25 08:04:12,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 247 places, 110 transitions, 3729 flow [2021-03-25 08:04:12,292 INFO L129 PetriNetUnfolder]: 0/304 cut-off events. [2021-03-25 08:04:12,292 INFO L130 PetriNetUnfolder]: For 9110/9112 co-relation queries the response was YES. [2021-03-25 08:04:12,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2315 conditions, 304 events. 0/304 cut-off events. For 9110/9112 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2748 event pairs, 0 based on Foata normal form. 0/304 useless extension candidates. Maximal degree in co-relation 0. Up to 36 conditions per place. [2021-03-25 08:04:12,294 INFO L142 LiptonReduction]: Number of co-enabled transitions 188 [2021-03-25 08:04:12,303 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:12,303 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:12,303 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-25 08:04:12,303 INFO L480 AbstractCegarLoop]: Abstraction has has 247 places, 110 transitions, 3729 flow [2021-03-25 08:04:12,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,303 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:12,303 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:12,303 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-03-25 08:04:12,303 INFO L428 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:12,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:12,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1306557062, now seen corresponding path program 86 times [2021-03-25 08:04:12,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:12,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936902195] [2021-03-25 08:04:12,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:12,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:12,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:12,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:12,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:12,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:12,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:12,334 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:12,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:12,343 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:12,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:12,369 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:12,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:12,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:12,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936902195] [2021-03-25 08:04:12,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:12,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:12,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723660446] [2021-03-25 08:04:12,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:12,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:12,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:12,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:12,383 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:12,383 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 110 transitions, 3729 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,383 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:12,383 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:12,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:12,457 INFO L129 PetriNetUnfolder]: 0/303 cut-off events. [2021-03-25 08:04:12,457 INFO L130 PetriNetUnfolder]: For 9181/9187 co-relation queries the response was YES. [2021-03-25 08:04:12,458 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2449 conditions, 303 events. 0/303 cut-off events. For 9181/9187 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2719 event pairs, 0 based on Foata normal form. 3/306 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2021-03-25 08:04:12,458 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 53 selfloop transitions, 46 changer transitions 4/113 dead transitions. [2021-03-25 08:04:12,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 113 transitions, 3947 flow [2021-03-25 08:04:12,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:12,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:12,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:12,459 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:12,459 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:12,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:12,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:12,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:12,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,460 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,460 INFO L185 Difference]: Start difference. First operand has 247 places, 110 transitions, 3729 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:12,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 113 transitions, 3947 flow [2021-03-25 08:04:12,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 113 transitions, 3817 flow, removed 5 selfloop flow, removed 8 redundant places. [2021-03-25 08:04:12,493 INFO L241 Difference]: Finished difference. Result has 246 places, 106 transitions, 3562 flow [2021-03-25 08:04:12,493 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3605, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3562, PETRI_PLACES=246, PETRI_TRANSITIONS=106} [2021-03-25 08:04:12,493 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 214 predicate places. [2021-03-25 08:04:12,493 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:12,493 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 246 places, 106 transitions, 3562 flow [2021-03-25 08:04:12,494 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 246 places, 106 transitions, 3562 flow [2021-03-25 08:04:12,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 241 places, 106 transitions, 3562 flow [2021-03-25 08:04:12,518 INFO L129 PetriNetUnfolder]: 0/294 cut-off events. [2021-03-25 08:04:12,518 INFO L130 PetriNetUnfolder]: For 8506/8508 co-relation queries the response was YES. [2021-03-25 08:04:12,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2224 conditions, 294 events. 0/294 cut-off events. For 8506/8508 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2627 event pairs, 0 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 0. Up to 35 conditions per place. [2021-03-25 08:04:12,520 INFO L142 LiptonReduction]: Number of co-enabled transitions 170 [2021-03-25 08:04:12,523 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:12,523 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:12,524 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-25 08:04:12,524 INFO L480 AbstractCegarLoop]: Abstraction has has 241 places, 106 transitions, 3562 flow [2021-03-25 08:04:12,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,525 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:12,525 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:12,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-03-25 08:04:12,525 INFO L428 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:12,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:12,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1317060166, now seen corresponding path program 87 times [2021-03-25 08:04:12,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:12,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816959940] [2021-03-25 08:04:12,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:12,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:12,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:12,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:12,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:12,535 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:12,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:12,546 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:12,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:12,563 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:12,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:12,576 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:12,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:12,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:12,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816959940] [2021-03-25 08:04:12,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:12,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:12,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630111636] [2021-03-25 08:04:12,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:12,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:12,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:12,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:12,590 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:12,590 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 106 transitions, 3562 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,590 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:12,590 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:12,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:12,647 INFO L129 PetriNetUnfolder]: 0/293 cut-off events. [2021-03-25 08:04:12,647 INFO L130 PetriNetUnfolder]: For 8576/8582 co-relation queries the response was YES. [2021-03-25 08:04:12,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2353 conditions, 293 events. 0/293 cut-off events. For 8576/8582 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2596 event pairs, 0 based on Foata normal form. 3/296 useless extension candidates. Maximal degree in co-relation 0. Up to 47 conditions per place. [2021-03-25 08:04:12,648 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 52 selfloop transitions, 45 changer transitions 2/109 dead transitions. [2021-03-25 08:04:12,648 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 109 transitions, 3772 flow [2021-03-25 08:04:12,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:12,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:12,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:12,649 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:12,649 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:12,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:12,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:12,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:12,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,649 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,649 INFO L185 Difference]: Start difference. First operand has 241 places, 106 transitions, 3562 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:12,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 109 transitions, 3772 flow [2021-03-25 08:04:12,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 109 transitions, 3591 flow, removed 7 selfloop flow, removed 8 redundant places. [2021-03-25 08:04:12,677 INFO L241 Difference]: Finished difference. Result has 240 places, 104 transitions, 3394 flow [2021-03-25 08:04:12,677 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3387, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3394, PETRI_PLACES=240, PETRI_TRANSITIONS=104} [2021-03-25 08:04:12,677 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 208 predicate places. [2021-03-25 08:04:12,677 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:12,678 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 104 transitions, 3394 flow [2021-03-25 08:04:12,678 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 104 transitions, 3394 flow [2021-03-25 08:04:12,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 238 places, 104 transitions, 3394 flow [2021-03-25 08:04:12,700 INFO L129 PetriNetUnfolder]: 0/287 cut-off events. [2021-03-25 08:04:12,700 INFO L130 PetriNetUnfolder]: For 7562/7562 co-relation queries the response was YES. [2021-03-25 08:04:12,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2134 conditions, 287 events. 0/287 cut-off events. For 7562/7562 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2529 event pairs, 0 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 0. Up to 34 conditions per place. [2021-03-25 08:04:12,701 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-25 08:04:12,705 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:12,705 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:12,705 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-03-25 08:04:12,705 INFO L480 AbstractCegarLoop]: Abstraction has has 238 places, 104 transitions, 3394 flow [2021-03-25 08:04:12,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,705 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:12,705 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:12,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-03-25 08:04:12,706 INFO L428 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:12,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:12,706 INFO L82 PathProgramCache]: Analyzing trace with hash 282788324, now seen corresponding path program 88 times [2021-03-25 08:04:12,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:12,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244994211] [2021-03-25 08:04:12,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:12,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:12,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:12,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:12,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:12,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:12,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:12,729 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:12,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:12,738 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:12,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:12,751 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:12,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:12,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:12,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244994211] [2021-03-25 08:04:12,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:12,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:12,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414137983] [2021-03-25 08:04:12,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:12,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:12,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:12,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:12,765 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:12,765 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 104 transitions, 3394 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,765 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:12,765 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:12,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:12,834 INFO L129 PetriNetUnfolder]: 0/286 cut-off events. [2021-03-25 08:04:12,835 INFO L130 PetriNetUnfolder]: For 7613/7613 co-relation queries the response was YES. [2021-03-25 08:04:12,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2260 conditions, 286 events. 0/286 cut-off events. For 7613/7613 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2500 event pairs, 0 based on Foata normal form. 1/287 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2021-03-25 08:04:12,835 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 54 selfloop transitions, 41 changer transitions 2/107 dead transitions. [2021-03-25 08:04:12,835 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 107 transitions, 3600 flow [2021-03-25 08:04:12,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:12,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:12,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:12,836 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:12,836 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:12,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:12,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:12,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:12,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,837 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,837 INFO L185 Difference]: Start difference. First operand has 238 places, 104 transitions, 3394 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:12,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 107 transitions, 3600 flow [2021-03-25 08:04:12,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 107 transitions, 3521 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:12,863 INFO L241 Difference]: Finished difference. Result has 240 places, 102 transitions, 3322 flow [2021-03-25 08:04:12,863 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3321, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3322, PETRI_PLACES=240, PETRI_TRANSITIONS=102} [2021-03-25 08:04:12,863 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 208 predicate places. [2021-03-25 08:04:12,863 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:12,863 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 102 transitions, 3322 flow [2021-03-25 08:04:12,863 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 102 transitions, 3322 flow [2021-03-25 08:04:12,864 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 238 places, 102 transitions, 3322 flow [2021-03-25 08:04:12,884 INFO L129 PetriNetUnfolder]: 0/280 cut-off events. [2021-03-25 08:04:12,885 INFO L130 PetriNetUnfolder]: For 7236/7236 co-relation queries the response was YES. [2021-03-25 08:04:12,885 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2097 conditions, 280 events. 0/280 cut-off events. For 7236/7236 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2435 event pairs, 0 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 0. Up to 33 conditions per place. [2021-03-25 08:04:12,886 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-25 08:04:12,889 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:12,889 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:12,889 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-03-25 08:04:12,890 INFO L480 AbstractCegarLoop]: Abstraction has has 238 places, 102 transitions, 3322 flow [2021-03-25 08:04:12,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,890 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:12,890 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:12,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-03-25 08:04:12,890 INFO L428 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:12,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:12,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1341013694, now seen corresponding path program 89 times [2021-03-25 08:04:12,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:12,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399261247] [2021-03-25 08:04:12,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:12,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:12,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:12,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:12,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:12,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:12,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:12,905 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:12,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:12,914 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:12,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:12,927 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:12,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:12,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:12,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399261247] [2021-03-25 08:04:12,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:12,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:12,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930059825] [2021-03-25 08:04:12,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:12,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:12,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:12,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:12,941 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:12,941 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 102 transitions, 3322 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:12,941 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:12,941 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:12,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:13,008 INFO L129 PetriNetUnfolder]: 0/279 cut-off events. [2021-03-25 08:04:13,008 INFO L130 PetriNetUnfolder]: For 7345/7351 co-relation queries the response was YES. [2021-03-25 08:04:13,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2220 conditions, 279 events. 0/279 cut-off events. For 7345/7351 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2413 event pairs, 0 based on Foata normal form. 3/282 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2021-03-25 08:04:13,009 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 54 selfloop transitions, 37 changer transitions 3/104 dead transitions. [2021-03-25 08:04:13,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 104 transitions, 3518 flow [2021-03-25 08:04:13,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:13,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:13,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:04:13,010 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:04:13,010 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:04:13,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:04:13,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:13,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:04:13,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,011 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,011 INFO L185 Difference]: Start difference. First operand has 238 places, 102 transitions, 3322 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:04:13,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 104 transitions, 3518 flow [2021-03-25 08:04:13,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 104 transitions, 3454 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:13,036 INFO L241 Difference]: Finished difference. Result has 240 places, 99 transitions, 3227 flow [2021-03-25 08:04:13,036 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3262, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3227, PETRI_PLACES=240, PETRI_TRANSITIONS=99} [2021-03-25 08:04:13,036 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 208 predicate places. [2021-03-25 08:04:13,036 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:13,036 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 99 transitions, 3227 flow [2021-03-25 08:04:13,036 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 99 transitions, 3227 flow [2021-03-25 08:04:13,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 235 places, 99 transitions, 3227 flow [2021-03-25 08:04:13,057 INFO L129 PetriNetUnfolder]: 0/272 cut-off events. [2021-03-25 08:04:13,057 INFO L130 PetriNetUnfolder]: For 7251/7253 co-relation queries the response was YES. [2021-03-25 08:04:13,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2034 conditions, 272 events. 0/272 cut-off events. For 7251/7253 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2349 event pairs, 0 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 0. Up to 32 conditions per place. [2021-03-25 08:04:13,059 INFO L142 LiptonReduction]: Number of co-enabled transitions 146 [2021-03-25 08:04:13,061 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:13,062 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:13,062 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-03-25 08:04:13,062 INFO L480 AbstractCegarLoop]: Abstraction has has 235 places, 99 transitions, 3227 flow [2021-03-25 08:04:13,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,062 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:13,062 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:13,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-03-25 08:04:13,062 INFO L428 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:13,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:13,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1662178528, now seen corresponding path program 90 times [2021-03-25 08:04:13,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:13,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578999201] [2021-03-25 08:04:13,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:13,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:13,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:13,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:13,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:13,072 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:13,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:13,084 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:13,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:13,093 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:13,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:13,107 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:13,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:13,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:13,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578999201] [2021-03-25 08:04:13,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:13,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:13,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164791679] [2021-03-25 08:04:13,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:13,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:13,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:13,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:13,121 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:13,122 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 99 transitions, 3227 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:13,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:13,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:13,175 INFO L129 PetriNetUnfolder]: 0/271 cut-off events. [2021-03-25 08:04:13,175 INFO L130 PetriNetUnfolder]: For 7318/7324 co-relation queries the response was YES. [2021-03-25 08:04:13,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2153 conditions, 271 events. 0/271 cut-off events. For 7318/7324 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2309 event pairs, 0 based on Foata normal form. 3/274 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2021-03-25 08:04:13,176 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 51 selfloop transitions, 38 changer transitions 3/102 dead transitions. [2021-03-25 08:04:13,176 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 102 transitions, 3423 flow [2021-03-25 08:04:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:13,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:13,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:13,176 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:13,177 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:13,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:13,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:13,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:13,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,177 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,177 INFO L185 Difference]: Start difference. First operand has 235 places, 99 transitions, 3227 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:13,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 102 transitions, 3423 flow [2021-03-25 08:04:13,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 102 transitions, 3281 flow, removed 10 selfloop flow, removed 7 redundant places. [2021-03-25 08:04:13,201 INFO L241 Difference]: Finished difference. Result has 235 places, 96 transitions, 3070 flow [2021-03-25 08:04:13,201 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3091, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3070, PETRI_PLACES=235, PETRI_TRANSITIONS=96} [2021-03-25 08:04:13,201 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 203 predicate places. [2021-03-25 08:04:13,201 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:13,201 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 235 places, 96 transitions, 3070 flow [2021-03-25 08:04:13,201 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 235 places, 96 transitions, 3070 flow [2021-03-25 08:04:13,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 233 places, 96 transitions, 3070 flow [2021-03-25 08:04:13,221 INFO L129 PetriNetUnfolder]: 0/263 cut-off events. [2021-03-25 08:04:13,221 INFO L130 PetriNetUnfolder]: For 6533/6535 co-relation queries the response was YES. [2021-03-25 08:04:13,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1952 conditions, 263 events. 0/263 cut-off events. For 6533/6535 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2247 event pairs, 0 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 0. Up to 31 conditions per place. [2021-03-25 08:04:13,222 INFO L142 LiptonReduction]: Number of co-enabled transitions 146 [2021-03-25 08:04:13,225 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:13,225 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:13,225 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-25 08:04:13,225 INFO L480 AbstractCegarLoop]: Abstraction has has 233 places, 96 transitions, 3070 flow [2021-03-25 08:04:13,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,226 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:13,226 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:13,226 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-03-25 08:04:13,226 INFO L428 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:13,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:13,226 INFO L82 PathProgramCache]: Analyzing trace with hash 871123010, now seen corresponding path program 91 times [2021-03-25 08:04:13,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:13,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232076160] [2021-03-25 08:04:13,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:13,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:13,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:13,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:13,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:13,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:13,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:13,241 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:13,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:13,257 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:13,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:13,271 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:13,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:13,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:13,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232076160] [2021-03-25 08:04:13,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:13,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:13,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361847372] [2021-03-25 08:04:13,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:13,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:13,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:13,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:13,285 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:13,285 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 96 transitions, 3070 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,285 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:13,285 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:13,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:13,337 INFO L129 PetriNetUnfolder]: 0/262 cut-off events. [2021-03-25 08:04:13,337 INFO L130 PetriNetUnfolder]: For 6540/6540 co-relation queries the response was YES. [2021-03-25 08:04:13,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2067 conditions, 262 events. 0/262 cut-off events. For 6540/6540 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2210 event pairs, 0 based on Foata normal form. 1/263 useless extension candidates. Maximal degree in co-relation 0. Up to 46 conditions per place. [2021-03-25 08:04:13,338 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 45 selfloop transitions, 42 changer transitions 2/99 dead transitions. [2021-03-25 08:04:13,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 99 transitions, 3260 flow [2021-03-25 08:04:13,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:13,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:13,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:13,339 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:13,339 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:13,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:13,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:13,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:13,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,340 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,340 INFO L185 Difference]: Start difference. First operand has 233 places, 96 transitions, 3070 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:13,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 99 transitions, 3260 flow [2021-03-25 08:04:13,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 99 transitions, 3171 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:13,362 INFO L241 Difference]: Finished difference. Result has 234 places, 94 transitions, 2992 flow [2021-03-25 08:04:13,362 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2987, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2992, PETRI_PLACES=234, PETRI_TRANSITIONS=94} [2021-03-25 08:04:13,362 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 202 predicate places. [2021-03-25 08:04:13,362 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:13,362 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 234 places, 94 transitions, 2992 flow [2021-03-25 08:04:13,362 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 234 places, 94 transitions, 2992 flow [2021-03-25 08:04:13,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 229 places, 94 transitions, 2992 flow [2021-03-25 08:04:13,381 INFO L129 PetriNetUnfolder]: 0/256 cut-off events. [2021-03-25 08:04:13,381 INFO L130 PetriNetUnfolder]: For 6364/6364 co-relation queries the response was YES. [2021-03-25 08:04:13,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1901 conditions, 256 events. 0/256 cut-off events. For 6364/6364 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2160 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 0. Up to 30 conditions per place. [2021-03-25 08:04:13,384 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-25 08:04:13,386 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:13,386 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:13,386 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-25 08:04:13,388 INFO L480 AbstractCegarLoop]: Abstraction has has 229 places, 94 transitions, 2992 flow [2021-03-25 08:04:13,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,388 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:13,388 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:13,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-03-25 08:04:13,388 INFO L428 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:13,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:13,389 INFO L82 PathProgramCache]: Analyzing trace with hash 719846108, now seen corresponding path program 92 times [2021-03-25 08:04:13,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:13,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602561164] [2021-03-25 08:04:13,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:13,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:13,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:13,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:13,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:13,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:13,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:13,409 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:13,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:13,426 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:13,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:13,440 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:13,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:13,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602561164] [2021-03-25 08:04:13,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:13,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:13,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826711470] [2021-03-25 08:04:13,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:13,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:13,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:13,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:13,454 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:13,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 94 transitions, 2992 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:13,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:13,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:13,519 INFO L129 PetriNetUnfolder]: 0/255 cut-off events. [2021-03-25 08:04:13,519 INFO L130 PetriNetUnfolder]: For 6470/6476 co-relation queries the response was YES. [2021-03-25 08:04:13,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2013 conditions, 255 events. 0/255 cut-off events. For 6470/6476 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2132 event pairs, 0 based on Foata normal form. 3/258 useless extension candidates. Maximal degree in co-relation 0. Up to 46 conditions per place. [2021-03-25 08:04:13,520 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 45 selfloop transitions, 37 changer transitions 4/96 dead transitions. [2021-03-25 08:04:13,520 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 96 transitions, 3172 flow [2021-03-25 08:04:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:13,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:13,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:04:13,521 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:04:13,521 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:04:13,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:04:13,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:13,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:04:13,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,522 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,522 INFO L185 Difference]: Start difference. First operand has 229 places, 94 transitions, 2992 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:04:13,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 96 transitions, 3172 flow [2021-03-25 08:04:13,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 96 transitions, 3094 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:13,543 INFO L241 Difference]: Finished difference. Result has 231 places, 90 transitions, 2864 flow [2021-03-25 08:04:13,544 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2918, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2864, PETRI_PLACES=231, PETRI_TRANSITIONS=90} [2021-03-25 08:04:13,544 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 199 predicate places. [2021-03-25 08:04:13,545 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:13,545 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 231 places, 90 transitions, 2864 flow [2021-03-25 08:04:13,545 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 231 places, 90 transitions, 2864 flow [2021-03-25 08:04:13,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 226 places, 90 transitions, 2864 flow [2021-03-25 08:04:13,563 INFO L129 PetriNetUnfolder]: 0/246 cut-off events. [2021-03-25 08:04:13,563 INFO L130 PetriNetUnfolder]: For 5867/5869 co-relation queries the response was YES. [2021-03-25 08:04:13,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1837 conditions, 246 events. 0/246 cut-off events. For 5867/5869 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2044 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 0. Up to 29 conditions per place. [2021-03-25 08:04:13,565 INFO L142 LiptonReduction]: Number of co-enabled transitions 124 [2021-03-25 08:04:13,567 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:13,567 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:13,567 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-25 08:04:13,568 INFO L480 AbstractCegarLoop]: Abstraction has has 226 places, 90 transitions, 2864 flow [2021-03-25 08:04:13,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,568 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:13,568 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:13,568 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-03-25 08:04:13,568 INFO L428 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:13,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:13,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1761422176, now seen corresponding path program 93 times [2021-03-25 08:04:13,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:13,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063410092] [2021-03-25 08:04:13,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:13,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:13,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:13,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:13,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:13,580 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:13,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:13,592 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:13,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:13,608 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:13,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:13,622 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:13,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:13,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:13,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063410092] [2021-03-25 08:04:13,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:13,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:13,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457875636] [2021-03-25 08:04:13,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:13,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:13,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:13,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:13,636 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:13,636 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 90 transitions, 2864 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,636 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:13,636 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:13,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:13,696 INFO L129 PetriNetUnfolder]: 0/245 cut-off events. [2021-03-25 08:04:13,696 INFO L130 PetriNetUnfolder]: For 5931/5937 co-relation queries the response was YES. [2021-03-25 08:04:13,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1944 conditions, 245 events. 0/245 cut-off events. For 5931/5937 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2023 event pairs, 0 based on Foata normal form. 3/248 useless extension candidates. Maximal degree in co-relation 0. Up to 40 conditions per place. [2021-03-25 08:04:13,697 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 41 selfloop transitions, 39 changer transitions 3/93 dead transitions. [2021-03-25 08:04:13,697 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 93 transitions, 3042 flow [2021-03-25 08:04:13,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:13,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:13,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2021-03-25 08:04:13,698 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274932614555256 [2021-03-25 08:04:13,698 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2021-03-25 08:04:13,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2021-03-25 08:04:13,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:13,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2021-03-25 08:04:13,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,699 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,699 INFO L185 Difference]: Start difference. First operand has 226 places, 90 transitions, 2864 flow. Second operand 7 states and 307 transitions. [2021-03-25 08:04:13,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 93 transitions, 3042 flow [2021-03-25 08:04:13,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 93 transitions, 2935 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-25 08:04:13,720 INFO L241 Difference]: Finished difference. Result has 228 places, 87 transitions, 2739 flow [2021-03-25 08:04:13,720 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2763, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2739, PETRI_PLACES=228, PETRI_TRANSITIONS=87} [2021-03-25 08:04:13,720 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 196 predicate places. [2021-03-25 08:04:13,720 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:13,720 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 87 transitions, 2739 flow [2021-03-25 08:04:13,720 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 87 transitions, 2739 flow [2021-03-25 08:04:13,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 220 places, 87 transitions, 2739 flow [2021-03-25 08:04:13,738 INFO L129 PetriNetUnfolder]: 0/237 cut-off events. [2021-03-25 08:04:13,738 INFO L130 PetriNetUnfolder]: For 5435/5435 co-relation queries the response was YES. [2021-03-25 08:04:13,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1763 conditions, 237 events. 0/237 cut-off events. For 5435/5435 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1938 event pairs, 0 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 0. Up to 28 conditions per place. [2021-03-25 08:04:13,739 INFO L142 LiptonReduction]: Number of co-enabled transitions 118 [2021-03-25 08:04:13,742 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:13,742 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:13,742 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-25 08:04:13,742 INFO L480 AbstractCegarLoop]: Abstraction has has 220 places, 87 transitions, 2739 flow [2021-03-25 08:04:13,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,742 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:13,742 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:13,742 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-03-25 08:04:13,742 INFO L428 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:13,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:13,742 INFO L82 PathProgramCache]: Analyzing trace with hash 172773532, now seen corresponding path program 94 times [2021-03-25 08:04:13,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:13,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709838304] [2021-03-25 08:04:13,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:13,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:13,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:13,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:13,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:13,772 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:13,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:13,784 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:13,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:13,809 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:13,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:13,823 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:13,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:13,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:13,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709838304] [2021-03-25 08:04:13,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:13,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:13,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534134511] [2021-03-25 08:04:13,838 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:13,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:13,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:13,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:13,838 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:13,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 87 transitions, 2739 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:13,839 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:13,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:13,898 INFO L129 PetriNetUnfolder]: 0/236 cut-off events. [2021-03-25 08:04:13,899 INFO L130 PetriNetUnfolder]: For 5480/5480 co-relation queries the response was YES. [2021-03-25 08:04:13,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1866 conditions, 236 events. 0/236 cut-off events. For 5480/5480 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1909 event pairs, 0 based on Foata normal form. 1/237 useless extension candidates. Maximal degree in co-relation 0. Up to 40 conditions per place. [2021-03-25 08:04:13,899 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 41 selfloop transitions, 37 changer transitions 2/90 dead transitions. [2021-03-25 08:04:13,899 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 90 transitions, 2911 flow [2021-03-25 08:04:13,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:13,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:13,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:04:13,900 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:04:13,900 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:04:13,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:04:13,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:13,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:04:13,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,901 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,901 INFO L185 Difference]: Start difference. First operand has 220 places, 87 transitions, 2739 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:04:13,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 90 transitions, 2911 flow [2021-03-25 08:04:13,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 90 transitions, 2774 flow, removed 4 selfloop flow, removed 8 redundant places. [2021-03-25 08:04:13,927 INFO L241 Difference]: Finished difference. Result has 219 places, 85 transitions, 2609 flow [2021-03-25 08:04:13,927 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2608, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2609, PETRI_PLACES=219, PETRI_TRANSITIONS=85} [2021-03-25 08:04:13,927 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 187 predicate places. [2021-03-25 08:04:13,927 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:13,927 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 219 places, 85 transitions, 2609 flow [2021-03-25 08:04:13,928 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 219 places, 85 transitions, 2609 flow [2021-03-25 08:04:13,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 211 places, 85 transitions, 2609 flow [2021-03-25 08:04:13,947 INFO L129 PetriNetUnfolder]: 0/229 cut-off events. [2021-03-25 08:04:13,948 INFO L130 PetriNetUnfolder]: For 5077/5077 co-relation queries the response was YES. [2021-03-25 08:04:13,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1676 conditions, 229 events. 0/229 cut-off events. For 5077/5077 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1852 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 0. Up to 27 conditions per place. [2021-03-25 08:04:13,949 INFO L142 LiptonReduction]: Number of co-enabled transitions 118 [2021-03-25 08:04:13,952 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:13,952 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:13,952 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-25 08:04:13,952 INFO L480 AbstractCegarLoop]: Abstraction has has 211 places, 85 transitions, 2609 flow [2021-03-25 08:04:13,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:13,952 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:13,952 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:13,952 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-03-25 08:04:13,952 INFO L428 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:13,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:13,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1854915744, now seen corresponding path program 95 times [2021-03-25 08:04:13,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:13,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094627602] [2021-03-25 08:04:13,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:13,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:13,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:13,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:13,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:13,967 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:13,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:13,979 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:13,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:13,994 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:13,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:14,008 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:14,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:14,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:14,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094627602] [2021-03-25 08:04:14,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:14,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:14,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624086823] [2021-03-25 08:04:14,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:14,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:14,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:14,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:14,023 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:14,023 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 85 transitions, 2609 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,023 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:14,023 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:14,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:14,072 INFO L129 PetriNetUnfolder]: 0/228 cut-off events. [2021-03-25 08:04:14,072 INFO L130 PetriNetUnfolder]: For 5180/5186 co-relation queries the response was YES. [2021-03-25 08:04:14,072 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1776 conditions, 228 events. 0/228 cut-off events. For 5180/5186 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1833 event pairs, 0 based on Foata normal form. 3/231 useless extension candidates. Maximal degree in co-relation 0. Up to 40 conditions per place. [2021-03-25 08:04:14,072 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 38 selfloop transitions, 36 changer transitions 4/88 dead transitions. [2021-03-25 08:04:14,073 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 88 transitions, 2777 flow [2021-03-25 08:04:14,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:14,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:14,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 305 transitions. [2021-03-25 08:04:14,073 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8221024258760108 [2021-03-25 08:04:14,073 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 305 transitions. [2021-03-25 08:04:14,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 305 transitions. [2021-03-25 08:04:14,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:14,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 305 transitions. [2021-03-25 08:04:14,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.57142857142857) internal successors, (305), 7 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,074 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,074 INFO L185 Difference]: Start difference. First operand has 211 places, 85 transitions, 2609 flow. Second operand 7 states and 305 transitions. [2021-03-25 08:04:14,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 88 transitions, 2777 flow [2021-03-25 08:04:14,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 88 transitions, 2623 flow, removed 9 selfloop flow, removed 10 redundant places. [2021-03-25 08:04:14,093 INFO L241 Difference]: Finished difference. Result has 208 places, 81 transitions, 2411 flow [2021-03-25 08:04:14,093 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2461, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2411, PETRI_PLACES=208, PETRI_TRANSITIONS=81} [2021-03-25 08:04:14,094 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 176 predicate places. [2021-03-25 08:04:14,094 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:14,094 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 208 places, 81 transitions, 2411 flow [2021-03-25 08:04:14,094 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 208 places, 81 transitions, 2411 flow [2021-03-25 08:04:14,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 192 places, 81 transitions, 2411 flow [2021-03-25 08:04:14,110 INFO L129 PetriNetUnfolder]: 0/219 cut-off events. [2021-03-25 08:04:14,110 INFO L130 PetriNetUnfolder]: For 4629/4629 co-relation queries the response was YES. [2021-03-25 08:04:14,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1543 conditions, 219 events. 0/219 cut-off events. For 4629/4629 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1744 event pairs, 0 based on Foata normal form. 0/218 useless extension candidates. Maximal degree in co-relation 0. Up to 26 conditions per place. [2021-03-25 08:04:14,111 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-25 08:04:14,113 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:14,113 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:14,113 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-25 08:04:14,114 INFO L480 AbstractCegarLoop]: Abstraction has has 192 places, 81 transitions, 2411 flow [2021-03-25 08:04:14,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,114 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:14,114 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:14,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-03-25 08:04:14,114 INFO L428 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:14,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:14,114 INFO L82 PathProgramCache]: Analyzing trace with hash 732707168, now seen corresponding path program 96 times [2021-03-25 08:04:14,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:14,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449141126] [2021-03-25 08:04:14,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:14,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:14,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:14,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:14,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:14,125 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:04:14,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:04:14,132 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:14,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:14,142 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:14,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:14,156 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:14,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:14,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:14,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449141126] [2021-03-25 08:04:14,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:14,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:14,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540767] [2021-03-25 08:04:14,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:14,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:14,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:14,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:14,170 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:14,177 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 81 transitions, 2411 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:14,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:14,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:14,234 INFO L129 PetriNetUnfolder]: 0/218 cut-off events. [2021-03-25 08:04:14,234 INFO L130 PetriNetUnfolder]: For 4731/4737 co-relation queries the response was YES. [2021-03-25 08:04:14,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1638 conditions, 218 events. 0/218 cut-off events. For 4731/4737 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1726 event pairs, 0 based on Foata normal form. 3/221 useless extension candidates. Maximal degree in co-relation 0. Up to 64 conditions per place. [2021-03-25 08:04:14,234 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 52 selfloop transitions, 21 changer transitions 2/85 dead transitions. [2021-03-25 08:04:14,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 85 transitions, 2621 flow [2021-03-25 08:04:14,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:14,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:14,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:04:14,236 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:04:14,236 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:04:14,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:04:14,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:14,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:04:14,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,237 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,237 INFO L185 Difference]: Start difference. First operand has 192 places, 81 transitions, 2411 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:04:14,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 85 transitions, 2621 flow [2021-03-25 08:04:14,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 85 transitions, 2304 flow, removed 11 selfloop flow, removed 18 redundant places. [2021-03-25 08:04:14,255 INFO L241 Difference]: Finished difference. Result has 182 places, 81 transitions, 2138 flow [2021-03-25 08:04:14,255 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2107, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2138, PETRI_PLACES=182, PETRI_TRANSITIONS=81} [2021-03-25 08:04:14,255 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 150 predicate places. [2021-03-25 08:04:14,255 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:14,255 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 182 places, 81 transitions, 2138 flow [2021-03-25 08:04:14,255 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 182 places, 81 transitions, 2138 flow [2021-03-25 08:04:14,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 181 places, 81 transitions, 2138 flow [2021-03-25 08:04:14,269 INFO L129 PetriNetUnfolder]: 0/211 cut-off events. [2021-03-25 08:04:14,269 INFO L130 PetriNetUnfolder]: For 3173/3175 co-relation queries the response was YES. [2021-03-25 08:04:14,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1394 conditions, 211 events. 0/211 cut-off events. For 3173/3175 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1660 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 0. Up to 25 conditions per place. [2021-03-25 08:04:14,270 INFO L142 LiptonReduction]: Number of co-enabled transitions 100 [2021-03-25 08:04:14,272 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:14,272 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:14,272 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-25 08:04:14,272 INFO L480 AbstractCegarLoop]: Abstraction has has 181 places, 81 transitions, 2138 flow [2021-03-25 08:04:14,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,273 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:14,273 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:14,273 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-03-25 08:04:14,273 INFO L428 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:14,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:14,273 INFO L82 PathProgramCache]: Analyzing trace with hash 861745350, now seen corresponding path program 97 times [2021-03-25 08:04:14,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:14,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592798069] [2021-03-25 08:04:14,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:14,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:14,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:14,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:14,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:14,283 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:04:14,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:04:14,291 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:14,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:14,301 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:14,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:14,314 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:14,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:14,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:14,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592798069] [2021-03-25 08:04:14,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:14,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:14,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767621923] [2021-03-25 08:04:14,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:14,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:14,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:14,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:14,327 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:14,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 81 transitions, 2138 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,327 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:14,328 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:14,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:14,371 INFO L129 PetriNetUnfolder]: 0/210 cut-off events. [2021-03-25 08:04:14,371 INFO L130 PetriNetUnfolder]: For 3201/3201 co-relation queries the response was YES. [2021-03-25 08:04:14,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1486 conditions, 210 events. 0/210 cut-off events. For 3201/3201 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1642 event pairs, 0 based on Foata normal form. 1/211 useless extension candidates. Maximal degree in co-relation 0. Up to 64 conditions per place. [2021-03-25 08:04:14,372 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 51 selfloop transitions, 19 changer transitions 3/83 dead transitions. [2021-03-25 08:04:14,372 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 83 transitions, 2292 flow [2021-03-25 08:04:14,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:14,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:14,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:04:14,373 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:04:14,373 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:04:14,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:04:14,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:14,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:04:14,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,374 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,374 INFO L185 Difference]: Start difference. First operand has 181 places, 81 transitions, 2138 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:04:14,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 83 transitions, 2292 flow [2021-03-25 08:04:14,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 83 transitions, 2234 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-03-25 08:04:14,387 INFO L241 Difference]: Finished difference. Result has 184 places, 78 transitions, 2037 flow [2021-03-25 08:04:14,387 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2084, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2037, PETRI_PLACES=184, PETRI_TRANSITIONS=78} [2021-03-25 08:04:14,387 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 152 predicate places. [2021-03-25 08:04:14,387 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:14,387 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 78 transitions, 2037 flow [2021-03-25 08:04:14,387 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 78 transitions, 2037 flow [2021-03-25 08:04:14,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 183 places, 78 transitions, 2037 flow [2021-03-25 08:04:14,400 INFO L129 PetriNetUnfolder]: 0/202 cut-off events. [2021-03-25 08:04:14,400 INFO L130 PetriNetUnfolder]: For 2954/2956 co-relation queries the response was YES. [2021-03-25 08:04:14,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1333 conditions, 202 events. 0/202 cut-off events. For 2954/2956 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1571 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 0. Up to 24 conditions per place. [2021-03-25 08:04:14,402 INFO L142 LiptonReduction]: Number of co-enabled transitions 100 [2021-03-25 08:04:14,404 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:14,404 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:14,404 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-25 08:04:14,404 INFO L480 AbstractCegarLoop]: Abstraction has has 183 places, 78 transitions, 2037 flow [2021-03-25 08:04:14,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,404 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:14,404 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:14,404 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-03-25 08:04:14,404 INFO L428 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:14,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:14,404 INFO L82 PathProgramCache]: Analyzing trace with hash 2111508008, now seen corresponding path program 98 times [2021-03-25 08:04:14,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:14,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81725802] [2021-03-25 08:04:14,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:14,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:14,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:14,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:14,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:14,414 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:04:14,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:04:14,422 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:14,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:14,431 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:14,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:14,445 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:14,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:14,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:14,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81725802] [2021-03-25 08:04:14,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:14,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:14,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679556138] [2021-03-25 08:04:14,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:14,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:14,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:14,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:14,461 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:14,461 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 78 transitions, 2037 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,461 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:14,461 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:14,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:14,512 INFO L129 PetriNetUnfolder]: 0/201 cut-off events. [2021-03-25 08:04:14,513 INFO L130 PetriNetUnfolder]: For 2981/2981 co-relation queries the response was YES. [2021-03-25 08:04:14,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1421 conditions, 201 events. 0/201 cut-off events. For 2981/2981 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1540 event pairs, 0 based on Foata normal form. 1/202 useless extension candidates. Maximal degree in co-relation 0. Up to 64 conditions per place. [2021-03-25 08:04:14,513 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 50 selfloop transitions, 18 changer transitions 2/80 dead transitions. [2021-03-25 08:04:14,513 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 80 transitions, 2185 flow [2021-03-25 08:04:14,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:14,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:14,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2021-03-25 08:04:14,514 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247978436657682 [2021-03-25 08:04:14,514 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 306 transitions. [2021-03-25 08:04:14,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 306 transitions. [2021-03-25 08:04:14,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:14,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 306 transitions. [2021-03-25 08:04:14,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,514 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,515 INFO L185 Difference]: Start difference. First operand has 183 places, 78 transitions, 2037 flow. Second operand 7 states and 306 transitions. [2021-03-25 08:04:14,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 80 transitions, 2185 flow [2021-03-25 08:04:14,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 80 transitions, 2146 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-25 08:04:14,527 INFO L241 Difference]: Finished difference. Result has 186 places, 76 transitions, 1968 flow [2021-03-25 08:04:14,527 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2002, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1968, PETRI_PLACES=186, PETRI_TRANSITIONS=76} [2021-03-25 08:04:14,528 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 154 predicate places. [2021-03-25 08:04:14,528 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:14,528 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 186 places, 76 transitions, 1968 flow [2021-03-25 08:04:14,528 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 186 places, 76 transitions, 1968 flow [2021-03-25 08:04:14,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 184 places, 76 transitions, 1968 flow [2021-03-25 08:04:14,540 INFO L129 PetriNetUnfolder]: 0/195 cut-off events. [2021-03-25 08:04:14,540 INFO L130 PetriNetUnfolder]: For 2846/2848 co-relation queries the response was YES. [2021-03-25 08:04:14,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1289 conditions, 195 events. 0/195 cut-off events. For 2846/2848 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1484 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 0. Up to 23 conditions per place. [2021-03-25 08:04:14,541 INFO L142 LiptonReduction]: Number of co-enabled transitions 96 [2021-03-25 08:04:14,543 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:14,543 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:14,543 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-25 08:04:14,543 INFO L480 AbstractCegarLoop]: Abstraction has has 184 places, 76 transitions, 1968 flow [2021-03-25 08:04:14,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,544 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:14,544 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:14,544 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-03-25 08:04:14,544 INFO L428 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:14,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:14,544 INFO L82 PathProgramCache]: Analyzing trace with hash -50720424, now seen corresponding path program 99 times [2021-03-25 08:04:14,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:14,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319768624] [2021-03-25 08:04:14,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:14,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:14,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:14,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:14,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:14,574 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:04:14,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:04:14,581 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:14,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:14,590 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:14,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:14,605 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:14,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:14,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:14,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319768624] [2021-03-25 08:04:14,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:14,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:14,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479123357] [2021-03-25 08:04:14,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:14,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:14,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:14,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:14,618 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:14,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 76 transitions, 1968 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:14,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:14,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:14,671 INFO L129 PetriNetUnfolder]: 0/194 cut-off events. [2021-03-25 08:04:14,671 INFO L130 PetriNetUnfolder]: For 2888/2894 co-relation queries the response was YES. [2021-03-25 08:04:14,672 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1374 conditions, 194 events. 0/194 cut-off events. For 2888/2894 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1463 event pairs, 0 based on Foata normal form. 3/197 useless extension candidates. Maximal degree in co-relation 0. Up to 64 conditions per place. [2021-03-25 08:04:14,672 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 48 selfloop transitions, 16 changer transitions 3/77 dead transitions. [2021-03-25 08:04:14,672 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 77 transitions, 2106 flow [2021-03-25 08:04:14,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:14,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:14,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 304 transitions. [2021-03-25 08:04:14,673 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8194070080862533 [2021-03-25 08:04:14,673 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 304 transitions. [2021-03-25 08:04:14,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 304 transitions. [2021-03-25 08:04:14,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:14,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 304 transitions. [2021-03-25 08:04:14,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.42857142857143) internal successors, (304), 7 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,673 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,673 INFO L185 Difference]: Start difference. First operand has 184 places, 76 transitions, 1968 flow. Second operand 7 states and 304 transitions. [2021-03-25 08:04:14,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 77 transitions, 2106 flow [2021-03-25 08:04:14,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 77 transitions, 2011 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:14,686 INFO L241 Difference]: Finished difference. Result has 185 places, 73 transitions, 1823 flow [2021-03-25 08:04:14,686 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1875, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1823, PETRI_PLACES=185, PETRI_TRANSITIONS=73} [2021-03-25 08:04:14,686 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 153 predicate places. [2021-03-25 08:04:14,686 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:14,686 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 185 places, 73 transitions, 1823 flow [2021-03-25 08:04:14,686 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 185 places, 73 transitions, 1823 flow [2021-03-25 08:04:14,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 181 places, 73 transitions, 1823 flow [2021-03-25 08:04:14,697 INFO L129 PetriNetUnfolder]: 0/186 cut-off events. [2021-03-25 08:04:14,698 INFO L130 PetriNetUnfolder]: For 2491/2493 co-relation queries the response was YES. [2021-03-25 08:04:14,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1201 conditions, 186 events. 0/186 cut-off events. For 2491/2493 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1401 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 0. Up to 22 conditions per place. [2021-03-25 08:04:14,698 INFO L142 LiptonReduction]: Number of co-enabled transitions 90 [2021-03-25 08:04:14,700 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:14,700 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:14,700 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-25 08:04:14,701 INFO L480 AbstractCegarLoop]: Abstraction has has 181 places, 73 transitions, 1823 flow [2021-03-25 08:04:14,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,701 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:14,701 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:14,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-03-25 08:04:14,701 INFO L428 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:14,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:14,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1606447848, now seen corresponding path program 100 times [2021-03-25 08:04:14,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:14,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579900767] [2021-03-25 08:04:14,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:14,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:14,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:14,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:14,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:14,725 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:04:14,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:04:14,732 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:14,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:14,742 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:14,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:14,755 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:14,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:14,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:14,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579900767] [2021-03-25 08:04:14,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:14,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:14,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198832709] [2021-03-25 08:04:14,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:14,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:14,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:14,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:14,769 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:14,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 73 transitions, 1823 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:14,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:14,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:14,807 INFO L129 PetriNetUnfolder]: 0/185 cut-off events. [2021-03-25 08:04:14,807 INFO L130 PetriNetUnfolder]: For 2530/2535 co-relation queries the response was YES. [2021-03-25 08:04:14,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1282 conditions, 185 events. 0/185 cut-off events. For 2530/2535 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1370 event pairs, 0 based on Foata normal form. 3/188 useless extension candidates. Maximal degree in co-relation 0. Up to 64 conditions per place. [2021-03-25 08:04:14,807 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 45 selfloop transitions, 13 changer transitions 5/73 dead transitions. [2021-03-25 08:04:14,807 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 73 transitions, 1949 flow [2021-03-25 08:04:14,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:14,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:14,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 301 transitions. [2021-03-25 08:04:14,808 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8113207547169812 [2021-03-25 08:04:14,808 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 301 transitions. [2021-03-25 08:04:14,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 301 transitions. [2021-03-25 08:04:14,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:14,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 301 transitions. [2021-03-25 08:04:14,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.0) internal successors, (301), 7 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,809 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,809 INFO L185 Difference]: Start difference. First operand has 181 places, 73 transitions, 1823 flow. Second operand 7 states and 301 transitions. [2021-03-25 08:04:14,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 73 transitions, 1949 flow [2021-03-25 08:04:14,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 73 transitions, 1887 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-03-25 08:04:14,820 INFO L241 Difference]: Finished difference. Result has 181 places, 68 transitions, 1681 flow [2021-03-25 08:04:14,820 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1761, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1681, PETRI_PLACES=181, PETRI_TRANSITIONS=68} [2021-03-25 08:04:14,820 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 149 predicate places. [2021-03-25 08:04:14,820 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:14,820 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 68 transitions, 1681 flow [2021-03-25 08:04:14,820 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 68 transitions, 1681 flow [2021-03-25 08:04:14,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 169 places, 68 transitions, 1681 flow [2021-03-25 08:04:14,831 INFO L129 PetriNetUnfolder]: 0/175 cut-off events. [2021-03-25 08:04:14,831 INFO L130 PetriNetUnfolder]: For 2269/2269 co-relation queries the response was YES. [2021-03-25 08:04:14,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1112 conditions, 175 events. 0/175 cut-off events. For 2269/2269 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1303 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 0. Up to 21 conditions per place. [2021-03-25 08:04:14,832 INFO L142 LiptonReduction]: Number of co-enabled transitions 88 [2021-03-25 08:04:14,833 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:14,833 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:14,833 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-25 08:04:14,834 INFO L480 AbstractCegarLoop]: Abstraction has has 169 places, 68 transitions, 1681 flow [2021-03-25 08:04:14,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,834 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:14,834 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:14,834 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-03-25 08:04:14,834 INFO L428 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:14,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:14,835 INFO L82 PathProgramCache]: Analyzing trace with hash 510966206, now seen corresponding path program 101 times [2021-03-25 08:04:14,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:14,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223917005] [2021-03-25 08:04:14,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:14,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:14,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:14,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:14,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:14,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:14,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:14,850 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:14,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:14,859 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:14,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:14,872 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:14,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:14,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:14,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223917005] [2021-03-25 08:04:14,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:14,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:14,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411430616] [2021-03-25 08:04:14,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:14,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:14,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:14,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:14,885 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:14,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 68 transitions, 1681 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:14,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:14,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:14,931 INFO L129 PetriNetUnfolder]: 0/174 cut-off events. [2021-03-25 08:04:14,931 INFO L130 PetriNetUnfolder]: For 2291/2291 co-relation queries the response was YES. [2021-03-25 08:04:14,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1187 conditions, 174 events. 0/174 cut-off events. For 2291/2291 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1271 event pairs, 0 based on Foata normal form. 1/175 useless extension candidates. Maximal degree in co-relation 0. Up to 38 conditions per place. [2021-03-25 08:04:14,932 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 33 selfloop transitions, 25 changer transitions 2/70 dead transitions. [2021-03-25 08:04:14,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 70 transitions, 1809 flow [2021-03-25 08:04:14,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:14,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:14,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 302 transitions. [2021-03-25 08:04:14,932 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8140161725067385 [2021-03-25 08:04:14,932 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 302 transitions. [2021-03-25 08:04:14,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 302 transitions. [2021-03-25 08:04:14,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:14,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 302 transitions. [2021-03-25 08:04:14,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,933 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,933 INFO L185 Difference]: Start difference. First operand has 169 places, 68 transitions, 1681 flow. Second operand 7 states and 302 transitions. [2021-03-25 08:04:14,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 70 transitions, 1809 flow [2021-03-25 08:04:14,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 70 transitions, 1728 flow, removed 7 selfloop flow, removed 8 redundant places. [2021-03-25 08:04:14,945 INFO L241 Difference]: Finished difference. Result has 168 places, 66 transitions, 1598 flow [2021-03-25 08:04:14,945 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1604, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1598, PETRI_PLACES=168, PETRI_TRANSITIONS=66} [2021-03-25 08:04:14,945 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 136 predicate places. [2021-03-25 08:04:14,945 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:14,945 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 168 places, 66 transitions, 1598 flow [2021-03-25 08:04:14,945 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 168 places, 66 transitions, 1598 flow [2021-03-25 08:04:14,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 166 places, 66 transitions, 1598 flow [2021-03-25 08:04:14,955 INFO L129 PetriNetUnfolder]: 0/167 cut-off events. [2021-03-25 08:04:14,955 INFO L130 PetriNetUnfolder]: For 1966/1966 co-relation queries the response was YES. [2021-03-25 08:04:14,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 167 events. 0/167 cut-off events. For 1966/1966 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1210 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2021-03-25 08:04:14,956 INFO L142 LiptonReduction]: Number of co-enabled transitions 86 [2021-03-25 08:04:14,958 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:14,958 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:14,958 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-25 08:04:14,958 INFO L480 AbstractCegarLoop]: Abstraction has has 166 places, 66 transitions, 1598 flow [2021-03-25 08:04:14,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:14,958 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:14,958 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:14,958 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-03-25 08:04:14,958 INFO L428 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:14,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:14,958 INFO L82 PathProgramCache]: Analyzing trace with hash 786354720, now seen corresponding path program 102 times [2021-03-25 08:04:14,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:14,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465299365] [2021-03-25 08:04:14,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:14,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:14,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:14,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:14,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:14,971 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:04:14,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:04:14,977 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:14,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:14,987 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:14,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:15,002 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:15,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:15,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:15,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465299365] [2021-03-25 08:04:15,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:15,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:15,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118466080] [2021-03-25 08:04:15,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:15,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:15,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:15,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:15,020 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:15,020 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 66 transitions, 1598 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,020 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:15,020 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:15,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:15,067 INFO L129 PetriNetUnfolder]: 0/166 cut-off events. [2021-03-25 08:04:15,067 INFO L130 PetriNetUnfolder]: For 1986/1986 co-relation queries the response was YES. [2021-03-25 08:04:15,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1137 conditions, 166 events. 0/166 cut-off events. For 1986/1986 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1187 event pairs, 0 based on Foata normal form. 1/167 useless extension candidates. Maximal degree in co-relation 0. Up to 37 conditions per place. [2021-03-25 08:04:15,067 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 31 selfloop transitions, 24 changer transitions 3/68 dead transitions. [2021-03-25 08:04:15,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 68 transitions, 1722 flow [2021-03-25 08:04:15,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:15,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:15,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 302 transitions. [2021-03-25 08:04:15,068 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8140161725067385 [2021-03-25 08:04:15,068 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:15,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,069 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,069 INFO L185 Difference]: Start difference. First operand has 166 places, 66 transitions, 1598 flow. Second operand 7 states and 302 transitions. [2021-03-25 08:04:15,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 68 transitions, 1722 flow [2021-03-25 08:04:15,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 68 transitions, 1658 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:15,078 INFO L241 Difference]: Finished difference. Result has 167 places, 63 transitions, 1506 flow [2021-03-25 08:04:15,078 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1538, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1506, PETRI_PLACES=167, PETRI_TRANSITIONS=63} [2021-03-25 08:04:15,078 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 135 predicate places. [2021-03-25 08:04:15,078 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:15,078 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 63 transitions, 1506 flow [2021-03-25 08:04:15,078 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 63 transitions, 1506 flow [2021-03-25 08:04:15,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 165 places, 63 transitions, 1506 flow [2021-03-25 08:04:15,088 INFO L129 PetriNetUnfolder]: 0/158 cut-off events. [2021-03-25 08:04:15,088 INFO L130 PetriNetUnfolder]: For 1853/1853 co-relation queries the response was YES. [2021-03-25 08:04:15,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1005 conditions, 158 events. 0/158 cut-off events. For 1853/1853 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1125 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2021-03-25 08:04:15,089 INFO L142 LiptonReduction]: Number of co-enabled transitions 82 [2021-03-25 08:04:15,091 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:15,091 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:15,091 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-25 08:04:15,091 INFO L480 AbstractCegarLoop]: Abstraction has has 165 places, 63 transitions, 1506 flow [2021-03-25 08:04:15,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,091 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:15,091 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:15,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-03-25 08:04:15,091 INFO L428 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:15,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:15,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1166928160, now seen corresponding path program 103 times [2021-03-25 08:04:15,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:15,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266745631] [2021-03-25 08:04:15,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:15,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:15,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:15,101 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:04:15,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:04:15,118 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:15,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:15,128 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:15,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:15,142 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:15,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:15,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:15,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266745631] [2021-03-25 08:04:15,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:15,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:15,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504865031] [2021-03-25 08:04:15,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:15,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:15,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:15,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:15,156 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:15,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 63 transitions, 1506 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:15,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:15,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:15,194 INFO L129 PetriNetUnfolder]: 0/157 cut-off events. [2021-03-25 08:04:15,194 INFO L130 PetriNetUnfolder]: For 1872/1872 co-relation queries the response was YES. [2021-03-25 08:04:15,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1073 conditions, 157 events. 0/157 cut-off events. For 1872/1872 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1096 event pairs, 0 based on Foata normal form. 1/158 useless extension candidates. Maximal degree in co-relation 0. Up to 30 conditions per place. [2021-03-25 08:04:15,195 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 28 selfloop transitions, 25 changer transitions 2/65 dead transitions. [2021-03-25 08:04:15,195 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 65 transitions, 1624 flow [2021-03-25 08:04:15,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:15,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:15,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 302 transitions. [2021-03-25 08:04:15,195 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8140161725067385 [2021-03-25 08:04:15,195 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:15,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,197 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,197 INFO L185 Difference]: Start difference. First operand has 165 places, 63 transitions, 1506 flow. Second operand 7 states and 302 transitions. [2021-03-25 08:04:15,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 65 transitions, 1624 flow [2021-03-25 08:04:15,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 65 transitions, 1562 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:15,205 INFO L241 Difference]: Finished difference. Result has 166 places, 61 transitions, 1443 flow [2021-03-25 08:04:15,206 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1448, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1443, PETRI_PLACES=166, PETRI_TRANSITIONS=61} [2021-03-25 08:04:15,206 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 134 predicate places. [2021-03-25 08:04:15,206 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:15,206 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 61 transitions, 1443 flow [2021-03-25 08:04:15,206 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 61 transitions, 1443 flow [2021-03-25 08:04:15,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 164 places, 61 transitions, 1443 flow [2021-03-25 08:04:15,215 INFO L129 PetriNetUnfolder]: 0/150 cut-off events. [2021-03-25 08:04:15,215 INFO L130 PetriNetUnfolder]: For 1778/1778 co-relation queries the response was YES. [2021-03-25 08:04:15,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 961 conditions, 150 events. 0/150 cut-off events. For 1778/1778 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1027 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2021-03-25 08:04:15,216 INFO L142 LiptonReduction]: Number of co-enabled transitions 82 [2021-03-25 08:04:15,217 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:15,217 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:15,217 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 08:04:15,217 INFO L480 AbstractCegarLoop]: Abstraction has has 164 places, 61 transitions, 1443 flow [2021-03-25 08:04:15,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,218 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:15,218 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:15,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-03-25 08:04:15,218 INFO L428 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:15,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:15,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1037889978, now seen corresponding path program 104 times [2021-03-25 08:04:15,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:15,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390466032] [2021-03-25 08:04:15,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:15,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:15,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:15,236 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:04:15,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:04:15,242 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:15,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:15,252 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:15,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:15,265 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:15,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:15,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:15,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390466032] [2021-03-25 08:04:15,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:15,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:15,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999513157] [2021-03-25 08:04:15,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:15,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:15,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:15,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:15,279 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:15,279 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 61 transitions, 1443 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,279 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:15,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:15,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:15,326 INFO L129 PetriNetUnfolder]: 0/149 cut-off events. [2021-03-25 08:04:15,327 INFO L130 PetriNetUnfolder]: For 1796/1796 co-relation queries the response was YES. [2021-03-25 08:04:15,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1026 conditions, 149 events. 0/149 cut-off events. For 1796/1796 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1006 event pairs, 0 based on Foata normal form. 1/150 useless extension candidates. Maximal degree in co-relation 0. Up to 32 conditions per place. [2021-03-25 08:04:15,327 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 28 selfloop transitions, 23 changer transitions 2/63 dead transitions. [2021-03-25 08:04:15,327 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 63 transitions, 1557 flow [2021-03-25 08:04:15,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:15,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:15,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 302 transitions. [2021-03-25 08:04:15,328 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8140161725067385 [2021-03-25 08:04:15,328 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:15,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,329 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,329 INFO L185 Difference]: Start difference. First operand has 164 places, 61 transitions, 1443 flow. Second operand 7 states and 302 transitions. [2021-03-25 08:04:15,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 63 transitions, 1557 flow [2021-03-25 08:04:15,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 63 transitions, 1492 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:15,336 INFO L241 Difference]: Finished difference. Result has 165 places, 59 transitions, 1373 flow [2021-03-25 08:04:15,337 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1382, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1373, PETRI_PLACES=165, PETRI_TRANSITIONS=59} [2021-03-25 08:04:15,337 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 133 predicate places. [2021-03-25 08:04:15,337 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:15,337 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 165 places, 59 transitions, 1373 flow [2021-03-25 08:04:15,337 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 165 places, 59 transitions, 1373 flow [2021-03-25 08:04:15,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 163 places, 59 transitions, 1373 flow [2021-03-25 08:04:15,345 INFO L129 PetriNetUnfolder]: 0/142 cut-off events. [2021-03-25 08:04:15,345 INFO L130 PetriNetUnfolder]: For 1690/1690 co-relation queries the response was YES. [2021-03-25 08:04:15,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 142 events. 0/142 cut-off events. For 1690/1690 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 950 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2021-03-25 08:04:15,346 INFO L142 LiptonReduction]: Number of co-enabled transitions 78 [2021-03-25 08:04:15,347 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:15,348 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:15,348 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 08:04:15,348 INFO L480 AbstractCegarLoop]: Abstraction has has 163 places, 59 transitions, 1373 flow [2021-03-25 08:04:15,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,348 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:15,348 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:15,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-03-25 08:04:15,348 INFO L428 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:15,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:15,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1495311042, now seen corresponding path program 105 times [2021-03-25 08:04:15,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:15,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071504051] [2021-03-25 08:04:15,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:15,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:15,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:15,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:15,364 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:15,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:15,379 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:15,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:15,392 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:15,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:15,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:15,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071504051] [2021-03-25 08:04:15,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:15,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:15,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986382981] [2021-03-25 08:04:15,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:15,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:15,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:15,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:15,406 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:15,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 59 transitions, 1373 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:15,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:15,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:15,444 INFO L129 PetriNetUnfolder]: 0/141 cut-off events. [2021-03-25 08:04:15,444 INFO L130 PetriNetUnfolder]: For 1707/1707 co-relation queries the response was YES. [2021-03-25 08:04:15,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 974 conditions, 141 events. 0/141 cut-off events. For 1707/1707 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 917 event pairs, 0 based on Foata normal form. 1/142 useless extension candidates. Maximal degree in co-relation 0. Up to 30 conditions per place. [2021-03-25 08:04:15,444 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 26 selfloop transitions, 22 changer transitions 3/61 dead transitions. [2021-03-25 08:04:15,444 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 61 transitions, 1483 flow [2021-03-25 08:04:15,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:15,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:15,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 302 transitions. [2021-03-25 08:04:15,445 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8140161725067385 [2021-03-25 08:04:15,445 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:15,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,446 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,446 INFO L185 Difference]: Start difference. First operand has 163 places, 59 transitions, 1373 flow. Second operand 7 states and 302 transitions. [2021-03-25 08:04:15,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 61 transitions, 1483 flow [2021-03-25 08:04:15,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 61 transitions, 1424 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:15,453 INFO L241 Difference]: Finished difference. Result has 164 places, 56 transitions, 1286 flow [2021-03-25 08:04:15,454 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1318, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1286, PETRI_PLACES=164, PETRI_TRANSITIONS=56} [2021-03-25 08:04:15,454 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 132 predicate places. [2021-03-25 08:04:15,454 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:15,454 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 56 transitions, 1286 flow [2021-03-25 08:04:15,454 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 56 transitions, 1286 flow [2021-03-25 08:04:15,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 162 places, 56 transitions, 1286 flow [2021-03-25 08:04:15,462 INFO L129 PetriNetUnfolder]: 0/133 cut-off events. [2021-03-25 08:04:15,462 INFO L130 PetriNetUnfolder]: For 1611/1611 co-relation queries the response was YES. [2021-03-25 08:04:15,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 853 conditions, 133 events. 0/133 cut-off events. For 1611/1611 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 857 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2021-03-25 08:04:15,463 INFO L142 LiptonReduction]: Number of co-enabled transitions 78 [2021-03-25 08:04:15,464 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:15,464 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:15,464 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-25 08:04:15,464 INFO L480 AbstractCegarLoop]: Abstraction has has 162 places, 56 transitions, 1286 flow [2021-03-25 08:04:15,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,464 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:15,464 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:15,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-03-25 08:04:15,465 INFO L428 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:15,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:15,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1911630658, now seen corresponding path program 106 times [2021-03-25 08:04:15,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:15,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262274565] [2021-03-25 08:04:15,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:15,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:15,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:15,474 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:04:15,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:04:15,481 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:15,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:15,490 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:15,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:15,504 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:15,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:15,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:15,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262274565] [2021-03-25 08:04:15,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:15,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:15,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184079502] [2021-03-25 08:04:15,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:15,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:15,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:15,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:15,517 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:15,518 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 56 transitions, 1286 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,518 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:15,518 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:15,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:15,553 INFO L129 PetriNetUnfolder]: 0/132 cut-off events. [2021-03-25 08:04:15,553 INFO L130 PetriNetUnfolder]: For 1627/1627 co-relation queries the response was YES. [2021-03-25 08:04:15,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 911 conditions, 132 events. 0/132 cut-off events. For 1627/1627 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 838 event pairs, 0 based on Foata normal form. 1/133 useless extension candidates. Maximal degree in co-relation 0. Up to 29 conditions per place. [2021-03-25 08:04:15,554 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 25 selfloop transitions, 20 changer transitions 3/58 dead transitions. [2021-03-25 08:04:15,554 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 58 transitions, 1390 flow [2021-03-25 08:04:15,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:15,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:15,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 302 transitions. [2021-03-25 08:04:15,554 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8140161725067385 [2021-03-25 08:04:15,554 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:15,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,555 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,555 INFO L185 Difference]: Start difference. First operand has 162 places, 56 transitions, 1286 flow. Second operand 7 states and 302 transitions. [2021-03-25 08:04:15,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 58 transitions, 1390 flow [2021-03-25 08:04:15,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 58 transitions, 1333 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:15,562 INFO L241 Difference]: Finished difference. Result has 163 places, 53 transitions, 1201 flow [2021-03-25 08:04:15,563 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1233, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1201, PETRI_PLACES=163, PETRI_TRANSITIONS=53} [2021-03-25 08:04:15,563 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 131 predicate places. [2021-03-25 08:04:15,563 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:15,563 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 53 transitions, 1201 flow [2021-03-25 08:04:15,563 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 53 transitions, 1201 flow [2021-03-25 08:04:15,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 161 places, 53 transitions, 1201 flow [2021-03-25 08:04:15,571 INFO L129 PetriNetUnfolder]: 0/124 cut-off events. [2021-03-25 08:04:15,571 INFO L130 PetriNetUnfolder]: For 1508/1508 co-relation queries the response was YES. [2021-03-25 08:04:15,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 124 events. 0/124 cut-off events. For 1508/1508 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 778 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2021-03-25 08:04:15,572 INFO L142 LiptonReduction]: Number of co-enabled transitions 78 [2021-03-25 08:04:15,573 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:15,573 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:15,573 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-25 08:04:15,573 INFO L480 AbstractCegarLoop]: Abstraction has has 161 places, 53 transitions, 1201 flow [2021-03-25 08:04:15,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,573 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:15,573 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:15,573 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-03-25 08:04:15,574 INFO L428 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:15,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:15,574 INFO L82 PathProgramCache]: Analyzing trace with hash -562119174, now seen corresponding path program 107 times [2021-03-25 08:04:15,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:15,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763655594] [2021-03-25 08:04:15,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:15,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:15,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:15,588 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:04:15,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:04:15,595 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:15,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:15,605 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:15,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:15,619 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:15,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:15,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:15,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763655594] [2021-03-25 08:04:15,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:15,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:15,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880702427] [2021-03-25 08:04:15,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:15,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:15,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:15,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:15,635 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:15,635 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 53 transitions, 1201 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,635 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:15,635 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:15,635 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:15,693 INFO L129 PetriNetUnfolder]: 0/123 cut-off events. [2021-03-25 08:04:15,694 INFO L130 PetriNetUnfolder]: For 1523/1523 co-relation queries the response was YES. [2021-03-25 08:04:15,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 852 conditions, 123 events. 0/123 cut-off events. For 1523/1523 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 763 event pairs, 0 based on Foata normal form. 1/124 useless extension candidates. Maximal degree in co-relation 0. Up to 25 conditions per place. [2021-03-25 08:04:15,696 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 22 selfloop transitions, 19 changer transitions 4/55 dead transitions. [2021-03-25 08:04:15,696 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 55 transitions, 1299 flow [2021-03-25 08:04:15,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:15,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:15,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 302 transitions. [2021-03-25 08:04:15,697 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8140161725067385 [2021-03-25 08:04:15,697 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:15,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,698 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,698 INFO L185 Difference]: Start difference. First operand has 161 places, 53 transitions, 1201 flow. Second operand 7 states and 302 transitions. [2021-03-25 08:04:15,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 55 transitions, 1299 flow [2021-03-25 08:04:15,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 55 transitions, 1229 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-03-25 08:04:15,705 INFO L241 Difference]: Finished difference. Result has 161 places, 49 transitions, 1084 flow [2021-03-25 08:04:15,705 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1135, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1084, PETRI_PLACES=161, PETRI_TRANSITIONS=49} [2021-03-25 08:04:15,706 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 129 predicate places. [2021-03-25 08:04:15,706 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:15,706 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 49 transitions, 1084 flow [2021-03-25 08:04:15,706 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 49 transitions, 1084 flow [2021-03-25 08:04:15,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 156 places, 49 transitions, 1084 flow [2021-03-25 08:04:15,712 INFO L129 PetriNetUnfolder]: 0/114 cut-off events. [2021-03-25 08:04:15,713 INFO L130 PetriNetUnfolder]: For 1380/1380 co-relation queries the response was YES. [2021-03-25 08:04:15,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 723 conditions, 114 events. 0/114 cut-off events. For 1380/1380 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 692 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2021-03-25 08:04:15,713 INFO L142 LiptonReduction]: Number of co-enabled transitions 76 [2021-03-25 08:04:15,714 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:15,714 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:15,714 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 08:04:15,715 INFO L480 AbstractCegarLoop]: Abstraction has has 156 places, 49 transitions, 1084 flow [2021-03-25 08:04:15,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,715 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:15,715 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:15,715 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-03-25 08:04:15,715 INFO L428 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:15,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:15,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1145064548, now seen corresponding path program 108 times [2021-03-25 08:04:15,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:15,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394973786] [2021-03-25 08:04:15,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:15,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:15,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:15,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:15,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:04:15,739 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:15,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:15,751 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:15,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:15,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:15,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394973786] [2021-03-25 08:04:15,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:15,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:15,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282776630] [2021-03-25 08:04:15,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:15,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:15,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:15,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:15,765 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:15,765 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 49 transitions, 1084 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,765 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:15,765 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:15,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:15,809 INFO L129 PetriNetUnfolder]: 0/113 cut-off events. [2021-03-25 08:04:15,809 INFO L130 PetriNetUnfolder]: For 1394/1394 co-relation queries the response was YES. [2021-03-25 08:04:15,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 772 conditions, 113 events. 0/113 cut-off events. For 1394/1394 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 678 event pairs, 0 based on Foata normal form. 1/114 useless extension candidates. Maximal degree in co-relation 0. Up to 26 conditions per place. [2021-03-25 08:04:15,810 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 23 selfloop transitions, 16 changer transitions 2/51 dead transitions. [2021-03-25 08:04:15,810 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 51 transitions, 1174 flow [2021-03-25 08:04:15,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:15,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:15,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 302 transitions. [2021-03-25 08:04:15,810 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8140161725067385 [2021-03-25 08:04:15,810 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:15,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 302 transitions. [2021-03-25 08:04:15,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,811 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,811 INFO L185 Difference]: Start difference. First operand has 156 places, 49 transitions, 1084 flow. Second operand 7 states and 302 transitions. [2021-03-25 08:04:15,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 51 transitions, 1174 flow [2021-03-25 08:04:15,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 51 transitions, 1084 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-03-25 08:04:15,817 INFO L241 Difference]: Finished difference. Result has 154 places, 47 transitions, 973 flow [2021-03-25 08:04:15,819 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=998, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=973, PETRI_PLACES=154, PETRI_TRANSITIONS=47} [2021-03-25 08:04:15,820 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 122 predicate places. [2021-03-25 08:04:15,820 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:15,820 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 47 transitions, 973 flow [2021-03-25 08:04:15,820 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 47 transitions, 973 flow [2021-03-25 08:04:15,820 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 152 places, 47 transitions, 973 flow [2021-03-25 08:04:15,826 INFO L129 PetriNetUnfolder]: 0/107 cut-off events. [2021-03-25 08:04:15,826 INFO L130 PetriNetUnfolder]: For 1206/1206 co-relation queries the response was YES. [2021-03-25 08:04:15,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 649 conditions, 107 events. 0/107 cut-off events. For 1206/1206 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 634 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2021-03-25 08:04:15,827 INFO L142 LiptonReduction]: Number of co-enabled transitions 68 [2021-03-25 08:04:15,827 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:15,827 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:15,828 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 08:04:15,828 INFO L480 AbstractCegarLoop]: Abstraction has has 152 places, 47 transitions, 973 flow [2021-03-25 08:04:15,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,828 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:15,828 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:15,828 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-03-25 08:04:15,828 INFO L428 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:15,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:15,828 INFO L82 PathProgramCache]: Analyzing trace with hash -2054953756, now seen corresponding path program 109 times [2021-03-25 08:04:15,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:15,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225464113] [2021-03-25 08:04:15,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:15,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:15,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:15,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:15,843 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:04:15,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:04:15,852 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:15,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:15,865 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:15,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:15,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:15,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225464113] [2021-03-25 08:04:15,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:15,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:15,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297726859] [2021-03-25 08:04:15,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:15,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:15,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:15,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:15,879 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:15,879 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 47 transitions, 973 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,879 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:15,879 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:15,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:15,908 INFO L129 PetriNetUnfolder]: 0/106 cut-off events. [2021-03-25 08:04:15,908 INFO L130 PetriNetUnfolder]: For 1219/1219 co-relation queries the response was YES. [2021-03-25 08:04:15,908 INFO L84 FinitePrefix]: Finished finitePrefix Result has 695 conditions, 106 events. 0/106 cut-off events. For 1219/1219 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 616 event pairs, 0 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 0. Up to 21 conditions per place. [2021-03-25 08:04:15,908 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 18 selfloop transitions, 18 changer transitions 3/49 dead transitions. [2021-03-25 08:04:15,908 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 49 transitions, 1059 flow [2021-03-25 08:04:15,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:15,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:15,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 301 transitions. [2021-03-25 08:04:15,911 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8113207547169812 [2021-03-25 08:04:15,911 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 301 transitions. [2021-03-25 08:04:15,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 301 transitions. [2021-03-25 08:04:15,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:15,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 301 transitions. [2021-03-25 08:04:15,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.0) internal successors, (301), 7 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,912 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,912 INFO L185 Difference]: Start difference. First operand has 152 places, 47 transitions, 973 flow. Second operand 7 states and 301 transitions. [2021-03-25 08:04:15,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 49 transitions, 1059 flow [2021-03-25 08:04:15,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 49 transitions, 1004 flow, removed 9 selfloop flow, removed 7 redundant places. [2021-03-25 08:04:15,917 INFO L241 Difference]: Finished difference. Result has 152 places, 44 transitions, 895 flow [2021-03-25 08:04:15,917 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=895, PETRI_PLACES=152, PETRI_TRANSITIONS=44} [2021-03-25 08:04:15,917 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 120 predicate places. [2021-03-25 08:04:15,917 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:15,917 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 44 transitions, 895 flow [2021-03-25 08:04:15,917 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 44 transitions, 895 flow [2021-03-25 08:04:15,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 141 places, 44 transitions, 895 flow [2021-03-25 08:04:15,923 INFO L129 PetriNetUnfolder]: 0/98 cut-off events. [2021-03-25 08:04:15,923 INFO L130 PetriNetUnfolder]: For 1111/1111 co-relation queries the response was YES. [2021-03-25 08:04:15,923 INFO L84 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 98 events. 0/98 cut-off events. For 1111/1111 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 560 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2021-03-25 08:04:15,924 INFO L142 LiptonReduction]: Number of co-enabled transitions 68 [2021-03-25 08:04:15,924 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:15,924 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:15,925 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 08:04:15,925 INFO L480 AbstractCegarLoop]: Abstraction has has 141 places, 44 transitions, 895 flow [2021-03-25 08:04:15,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,925 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:15,925 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:15,925 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-03-25 08:04:15,925 INFO L428 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:15,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:15,925 INFO L82 PathProgramCache]: Analyzing trace with hash 2000371202, now seen corresponding path program 110 times [2021-03-25 08:04:15,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:15,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443591646] [2021-03-25 08:04:15,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:15,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:15,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:15,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:15,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:15,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:04:15,970 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:15,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:15,983 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:15,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:15,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:15,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443591646] [2021-03-25 08:04:15,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:15,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:15,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858750321] [2021-03-25 08:04:15,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:15,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:15,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:15,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:15,997 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:15,998 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 44 transitions, 895 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:15,998 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:15,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:15,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:16,036 INFO L129 PetriNetUnfolder]: 0/97 cut-off events. [2021-03-25 08:04:16,036 INFO L130 PetriNetUnfolder]: For 1123/1123 co-relation queries the response was YES. [2021-03-25 08:04:16,036 INFO L84 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 97 events. 0/97 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 533 event pairs, 0 based on Foata normal form. 1/98 useless extension candidates. Maximal degree in co-relation 0. Up to 24 conditions per place. [2021-03-25 08:04:16,036 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 19 selfloop transitions, 13 changer transitions 4/46 dead transitions. [2021-03-25 08:04:16,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 46 transitions, 975 flow [2021-03-25 08:04:16,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:16,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:16,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 301 transitions. [2021-03-25 08:04:16,037 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8113207547169812 [2021-03-25 08:04:16,037 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 301 transitions. [2021-03-25 08:04:16,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 301 transitions. [2021-03-25 08:04:16,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:16,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 301 transitions. [2021-03-25 08:04:16,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.0) internal successors, (301), 7 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,038 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,039 INFO L185 Difference]: Start difference. First operand has 141 places, 44 transitions, 895 flow. Second operand 7 states and 301 transitions. [2021-03-25 08:04:16,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 46 transitions, 975 flow [2021-03-25 08:04:16,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 46 transitions, 882 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-25 08:04:16,044 INFO L241 Difference]: Finished difference. Result has 139 places, 40 transitions, 751 flow [2021-03-25 08:04:16,044 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=751, PETRI_PLACES=139, PETRI_TRANSITIONS=40} [2021-03-25 08:04:16,044 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 107 predicate places. [2021-03-25 08:04:16,044 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:16,044 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 40 transitions, 751 flow [2021-03-25 08:04:16,044 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 40 transitions, 751 flow [2021-03-25 08:04:16,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 134 places, 40 transitions, 751 flow [2021-03-25 08:04:16,049 INFO L129 PetriNetUnfolder]: 0/88 cut-off events. [2021-03-25 08:04:16,049 INFO L130 PetriNetUnfolder]: For 876/876 co-relation queries the response was YES. [2021-03-25 08:04:16,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 88 events. 0/88 cut-off events. For 876/876 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 475 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2021-03-25 08:04:16,050 INFO L142 LiptonReduction]: Number of co-enabled transitions 64 [2021-03-25 08:04:16,050 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:16,051 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:16,051 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-25 08:04:16,051 INFO L480 AbstractCegarLoop]: Abstraction has has 134 places, 40 transitions, 751 flow [2021-03-25 08:04:16,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,051 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:16,051 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:16,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-03-25 08:04:16,051 INFO L428 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:16,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:16,051 INFO L82 PathProgramCache]: Analyzing trace with hash 10976492, now seen corresponding path program 111 times [2021-03-25 08:04:16,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:16,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993296078] [2021-03-25 08:04:16,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:16,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:16,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:16,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:16,067 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:16,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:16,083 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:16,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:16,095 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:16,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:16,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:16,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993296078] [2021-03-25 08:04:16,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:16,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:16,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493455431] [2021-03-25 08:04:16,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:16,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:16,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:16,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:16,108 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:16,108 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 40 transitions, 751 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,108 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:16,108 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:16,108 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:16,149 INFO L129 PetriNetUnfolder]: 0/87 cut-off events. [2021-03-25 08:04:16,150 INFO L130 PetriNetUnfolder]: For 887/887 co-relation queries the response was YES. [2021-03-25 08:04:16,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 87 events. 0/87 cut-off events. For 887/887 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 457 event pairs, 0 based on Foata normal form. 1/88 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2021-03-25 08:04:16,150 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 15 selfloop transitions, 14 changer transitions 3/42 dead transitions. [2021-03-25 08:04:16,150 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 42 transitions, 823 flow [2021-03-25 08:04:16,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:16,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:16,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 302 transitions. [2021-03-25 08:04:16,153 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8140161725067385 [2021-03-25 08:04:16,154 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 302 transitions. [2021-03-25 08:04:16,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 302 transitions. [2021-03-25 08:04:16,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:16,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 302 transitions. [2021-03-25 08:04:16,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,154 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,154 INFO L185 Difference]: Start difference. First operand has 134 places, 40 transitions, 751 flow. Second operand 7 states and 302 transitions. [2021-03-25 08:04:16,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 42 transitions, 823 flow [2021-03-25 08:04:16,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 42 transitions, 759 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-25 08:04:16,159 INFO L241 Difference]: Finished difference. Result has 132 places, 37 transitions, 652 flow [2021-03-25 08:04:16,159 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=652, PETRI_PLACES=132, PETRI_TRANSITIONS=37} [2021-03-25 08:04:16,159 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 100 predicate places. [2021-03-25 08:04:16,160 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:16,160 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 37 transitions, 652 flow [2021-03-25 08:04:16,160 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 37 transitions, 652 flow [2021-03-25 08:04:16,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 37 transitions, 652 flow [2021-03-25 08:04:16,164 INFO L129 PetriNetUnfolder]: 0/79 cut-off events. [2021-03-25 08:04:16,164 INFO L130 PetriNetUnfolder]: For 733/733 co-relation queries the response was YES. [2021-03-25 08:04:16,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 79 events. 0/79 cut-off events. For 733/733 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 394 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2021-03-25 08:04:16,165 INFO L142 LiptonReduction]: Number of co-enabled transitions 58 [2021-03-25 08:04:16,165 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:16,165 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:16,165 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-25 08:04:16,166 INFO L480 AbstractCegarLoop]: Abstraction has has 127 places, 37 transitions, 652 flow [2021-03-25 08:04:16,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,166 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:16,166 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:16,166 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-03-25 08:04:16,166 INFO L428 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:16,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:16,166 INFO L82 PathProgramCache]: Analyzing trace with hash 916354016, now seen corresponding path program 112 times [2021-03-25 08:04:16,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:16,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637746233] [2021-03-25 08:04:16,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:16,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:16,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:16,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:16,200 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:16,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:16,210 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:16,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:16,225 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:16,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:16,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:16,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637746233] [2021-03-25 08:04:16,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:16,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:16,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153902740] [2021-03-25 08:04:16,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:16,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:16,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:16,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:16,243 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:16,243 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 37 transitions, 652 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,243 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:16,243 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:16,243 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:16,291 INFO L129 PetriNetUnfolder]: 0/78 cut-off events. [2021-03-25 08:04:16,292 INFO L130 PetriNetUnfolder]: For 743/743 co-relation queries the response was YES. [2021-03-25 08:04:16,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 78 events. 0/78 cut-off events. For 743/743 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 378 event pairs, 0 based on Foata normal form. 1/79 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2021-03-25 08:04:16,292 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 16 selfloop transitions, 11 changer transitions 2/39 dead transitions. [2021-03-25 08:04:16,292 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 39 transitions, 718 flow [2021-03-25 08:04:16,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:16,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:16,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 302 transitions. [2021-03-25 08:04:16,292 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8140161725067385 [2021-03-25 08:04:16,292 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 302 transitions. [2021-03-25 08:04:16,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 302 transitions. [2021-03-25 08:04:16,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:16,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 302 transitions. [2021-03-25 08:04:16,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,293 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,293 INFO L185 Difference]: Start difference. First operand has 127 places, 37 transitions, 652 flow. Second operand 7 states and 302 transitions. [2021-03-25 08:04:16,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 39 transitions, 718 flow [2021-03-25 08:04:16,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 39 transitions, 672 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-03-25 08:04:16,297 INFO L241 Difference]: Finished difference. Result has 127 places, 35 transitions, 578 flow [2021-03-25 08:04:16,297 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=578, PETRI_PLACES=127, PETRI_TRANSITIONS=35} [2021-03-25 08:04:16,297 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 95 predicate places. [2021-03-25 08:04:16,297 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:16,298 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 35 transitions, 578 flow [2021-03-25 08:04:16,298 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 35 transitions, 578 flow [2021-03-25 08:04:16,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 125 places, 35 transitions, 578 flow [2021-03-25 08:04:16,302 INFO L129 PetriNetUnfolder]: 0/73 cut-off events. [2021-03-25 08:04:16,302 INFO L130 PetriNetUnfolder]: For 610/610 co-relation queries the response was YES. [2021-03-25 08:04:16,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 73 events. 0/73 cut-off events. For 610/610 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 339 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-03-25 08:04:16,303 INFO L142 LiptonReduction]: Number of co-enabled transitions 50 [2021-03-25 08:04:16,303 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:16,303 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:16,304 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-25 08:04:16,304 INFO L480 AbstractCegarLoop]: Abstraction has has 125 places, 35 transitions, 578 flow [2021-03-25 08:04:16,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,304 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:16,304 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:16,304 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-03-25 08:04:16,304 INFO L428 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:16,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:16,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1305180812, now seen corresponding path program 113 times [2021-03-25 08:04:16,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:16,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184364090] [2021-03-25 08:04:16,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:16,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:16,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:16,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:16,322 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:16,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:16,331 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:16,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:16,346 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:16,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:16,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184364090] [2021-03-25 08:04:16,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:16,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:16,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862937100] [2021-03-25 08:04:16,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:16,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:16,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:16,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:16,360 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:16,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 35 transitions, 578 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:16,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:16,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:16,403 INFO L129 PetriNetUnfolder]: 0/72 cut-off events. [2021-03-25 08:04:16,403 INFO L130 PetriNetUnfolder]: For 619/619 co-relation queries the response was YES. [2021-03-25 08:04:16,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 72 events. 0/72 cut-off events. For 619/619 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 326 event pairs, 0 based on Foata normal form. 1/73 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2021-03-25 08:04:16,404 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 14 selfloop transitions, 10 changer transitions 3/37 dead transitions. [2021-03-25 08:04:16,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 37 transitions, 640 flow [2021-03-25 08:04:16,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:16,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:16,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 301 transitions. [2021-03-25 08:04:16,404 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8113207547169812 [2021-03-25 08:04:16,404 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 301 transitions. [2021-03-25 08:04:16,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 301 transitions. [2021-03-25 08:04:16,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:16,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 301 transitions. [2021-03-25 08:04:16,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.0) internal successors, (301), 7 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,405 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,405 INFO L185 Difference]: Start difference. First operand has 125 places, 35 transitions, 578 flow. Second operand 7 states and 301 transitions. [2021-03-25 08:04:16,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 37 transitions, 640 flow [2021-03-25 08:04:16,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 37 transitions, 593 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-03-25 08:04:16,409 INFO L241 Difference]: Finished difference. Result has 124 places, 32 transitions, 489 flow [2021-03-25 08:04:16,409 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=489, PETRI_PLACES=124, PETRI_TRANSITIONS=32} [2021-03-25 08:04:16,409 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 92 predicate places. [2021-03-25 08:04:16,409 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:16,409 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 32 transitions, 489 flow [2021-03-25 08:04:16,409 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 32 transitions, 489 flow [2021-03-25 08:04:16,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 32 transitions, 489 flow [2021-03-25 08:04:16,413 INFO L129 PetriNetUnfolder]: 0/64 cut-off events. [2021-03-25 08:04:16,413 INFO L130 PetriNetUnfolder]: For 463/463 co-relation queries the response was YES. [2021-03-25 08:04:16,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 64 events. 0/64 cut-off events. For 463/463 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 263 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-03-25 08:04:16,413 INFO L142 LiptonReduction]: Number of co-enabled transitions 40 [2021-03-25 08:04:16,414 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:16,414 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:16,414 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-03-25 08:04:16,414 INFO L480 AbstractCegarLoop]: Abstraction has has 116 places, 32 transitions, 489 flow [2021-03-25 08:04:16,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,414 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:16,414 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:16,414 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-03-25 08:04:16,414 INFO L428 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:16,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:16,415 INFO L82 PathProgramCache]: Analyzing trace with hash -573050980, now seen corresponding path program 114 times [2021-03-25 08:04:16,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:16,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072899927] [2021-03-25 08:04:16,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:16,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:16,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:16,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:16,433 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:16,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:16,444 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:16,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:16,457 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:16,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:16,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:16,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072899927] [2021-03-25 08:04:16,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:16,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:16,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633777153] [2021-03-25 08:04:16,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:16,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:16,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:16,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:16,471 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:16,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 32 transitions, 489 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:16,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:16,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:16,510 INFO L129 PetriNetUnfolder]: 0/63 cut-off events. [2021-03-25 08:04:16,510 INFO L130 PetriNetUnfolder]: For 471/471 co-relation queries the response was YES. [2021-03-25 08:04:16,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 63 events. 0/63 cut-off events. For 471/471 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 261 event pairs, 0 based on Foata normal form. 1/64 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2021-03-25 08:04:16,510 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 11 selfloop transitions, 11 changer transitions 2/34 dead transitions. [2021-03-25 08:04:16,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 34 transitions, 545 flow [2021-03-25 08:04:16,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:16,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:16,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 301 transitions. [2021-03-25 08:04:16,511 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8113207547169812 [2021-03-25 08:04:16,511 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 301 transitions. [2021-03-25 08:04:16,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 301 transitions. [2021-03-25 08:04:16,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:16,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 301 transitions. [2021-03-25 08:04:16,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.0) internal successors, (301), 7 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,512 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,512 INFO L185 Difference]: Start difference. First operand has 116 places, 32 transitions, 489 flow. Second operand 7 states and 301 transitions. [2021-03-25 08:04:16,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 34 transitions, 545 flow [2021-03-25 08:04:16,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 34 transitions, 477 flow, removed 8 selfloop flow, removed 11 redundant places. [2021-03-25 08:04:16,514 INFO L241 Difference]: Finished difference. Result has 112 places, 30 transitions, 409 flow [2021-03-25 08:04:16,514 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=409, PETRI_PLACES=112, PETRI_TRANSITIONS=30} [2021-03-25 08:04:16,515 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 80 predicate places. [2021-03-25 08:04:16,515 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:16,515 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 30 transitions, 409 flow [2021-03-25 08:04:16,515 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 30 transitions, 409 flow [2021-03-25 08:04:16,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 30 transitions, 409 flow [2021-03-25 08:04:16,518 INFO L129 PetriNetUnfolder]: 0/56 cut-off events. [2021-03-25 08:04:16,518 INFO L130 PetriNetUnfolder]: For 329/329 co-relation queries the response was YES. [2021-03-25 08:04:16,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 56 events. 0/56 cut-off events. For 329/329 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 215 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-03-25 08:04:16,518 INFO L142 LiptonReduction]: Number of co-enabled transitions 36 [2021-03-25 08:04:16,519 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:16,519 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:16,519 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-03-25 08:04:16,519 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 30 transitions, 409 flow [2021-03-25 08:04:16,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,519 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:16,519 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:16,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-03-25 08:04:16,520 INFO L428 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:16,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:16,520 INFO L82 PathProgramCache]: Analyzing trace with hash 716048202, now seen corresponding path program 115 times [2021-03-25 08:04:16,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:16,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304914437] [2021-03-25 08:04:16,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:16,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:16,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:16,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:16,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:04:16,547 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:16,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:16,560 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:16,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:16,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:16,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304914437] [2021-03-25 08:04:16,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:16,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:16,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272564237] [2021-03-25 08:04:16,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:16,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:16,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:16,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:16,574 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:16,574 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 30 transitions, 409 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:16,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:16,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:16,613 INFO L129 PetriNetUnfolder]: 0/55 cut-off events. [2021-03-25 08:04:16,613 INFO L130 PetriNetUnfolder]: For 336/336 co-relation queries the response was YES. [2021-03-25 08:04:16,613 INFO L84 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 55 events. 0/55 cut-off events. For 336/336 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 201 event pairs, 0 based on Foata normal form. 1/56 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-03-25 08:04:16,613 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 12 selfloop transitions, 8 changer transitions 2/32 dead transitions. [2021-03-25 08:04:16,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 32 transitions, 461 flow [2021-03-25 08:04:16,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:16,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:16,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 302 transitions. [2021-03-25 08:04:16,614 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8140161725067385 [2021-03-25 08:04:16,614 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 302 transitions. [2021-03-25 08:04:16,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 302 transitions. [2021-03-25 08:04:16,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:16,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 302 transitions. [2021-03-25 08:04:16,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,614 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,615 INFO L185 Difference]: Start difference. First operand has 104 places, 30 transitions, 409 flow. Second operand 7 states and 302 transitions. [2021-03-25 08:04:16,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 32 transitions, 461 flow [2021-03-25 08:04:16,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 32 transitions, 427 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-03-25 08:04:16,616 INFO L241 Difference]: Finished difference. Result has 104 places, 28 transitions, 351 flow [2021-03-25 08:04:16,616 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=351, PETRI_PLACES=104, PETRI_TRANSITIONS=28} [2021-03-25 08:04:16,616 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 72 predicate places. [2021-03-25 08:04:16,616 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:16,617 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 28 transitions, 351 flow [2021-03-25 08:04:16,617 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 28 transitions, 351 flow [2021-03-25 08:04:16,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 28 transitions, 351 flow [2021-03-25 08:04:16,619 INFO L129 PetriNetUnfolder]: 0/49 cut-off events. [2021-03-25 08:04:16,619 INFO L130 PetriNetUnfolder]: For 266/266 co-relation queries the response was YES. [2021-03-25 08:04:16,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 49 events. 0/49 cut-off events. For 266/266 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 160 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-25 08:04:16,620 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-25 08:04:16,620 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:16,620 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:16,620 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-03-25 08:04:16,620 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 28 transitions, 351 flow [2021-03-25 08:04:16,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,620 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:16,620 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:16,621 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-03-25 08:04:16,621 INFO L428 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:16,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:16,621 INFO L82 PathProgramCache]: Analyzing trace with hash 300689700, now seen corresponding path program 116 times [2021-03-25 08:04:16,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:16,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982519982] [2021-03-25 08:04:16,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:16,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:16,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:16,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:16,636 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:16,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:16,645 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:16,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:16,659 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:16,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:16,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:16,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982519982] [2021-03-25 08:04:16,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:16,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:16,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102722497] [2021-03-25 08:04:16,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:16,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:16,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:16,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:16,673 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:16,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 28 transitions, 351 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:16,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:16,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:16,699 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2021-03-25 08:04:16,699 INFO L130 PetriNetUnfolder]: For 272/272 co-relation queries the response was YES. [2021-03-25 08:04:16,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 48 events. 0/48 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 152 event pairs, 0 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-03-25 08:04:16,699 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 8 selfloop transitions, 8 changer transitions 4/30 dead transitions. [2021-03-25 08:04:16,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 30 transitions, 399 flow [2021-03-25 08:04:16,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:16,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:16,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 300 transitions. [2021-03-25 08:04:16,700 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8086253369272237 [2021-03-25 08:04:16,700 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 300 transitions. [2021-03-25 08:04:16,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 300 transitions. [2021-03-25 08:04:16,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:16,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 300 transitions. [2021-03-25 08:04:16,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 42.857142857142854) internal successors, (300), 7 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,700 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,700 INFO L185 Difference]: Start difference. First operand has 99 places, 28 transitions, 351 flow. Second operand 7 states and 300 transitions. [2021-03-25 08:04:16,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 30 transitions, 399 flow [2021-03-25 08:04:16,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 30 transitions, 373 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:16,702 INFO L241 Difference]: Finished difference. Result has 100 places, 24 transitions, 287 flow [2021-03-25 08:04:16,702 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=287, PETRI_PLACES=100, PETRI_TRANSITIONS=24} [2021-03-25 08:04:16,702 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 68 predicate places. [2021-03-25 08:04:16,702 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:16,702 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 24 transitions, 287 flow [2021-03-25 08:04:16,702 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 24 transitions, 287 flow [2021-03-25 08:04:16,703 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 24 transitions, 287 flow [2021-03-25 08:04:16,705 INFO L129 PetriNetUnfolder]: 0/39 cut-off events. [2021-03-25 08:04:16,705 INFO L130 PetriNetUnfolder]: For 218/218 co-relation queries the response was YES. [2021-03-25 08:04:16,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 39 events. 0/39 cut-off events. For 218/218 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 107 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-25 08:04:16,705 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-25 08:04:16,705 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:16,705 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:16,705 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-03-25 08:04:16,706 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 24 transitions, 287 flow [2021-03-25 08:04:16,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,706 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:16,706 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:16,706 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-03-25 08:04:16,706 INFO L428 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:16,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:16,706 INFO L82 PathProgramCache]: Analyzing trace with hash -2096055204, now seen corresponding path program 117 times [2021-03-25 08:04:16,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:16,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673432104] [2021-03-25 08:04:16,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:16,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:16,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:16,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:16,728 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:16,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:16,739 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:16,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:16,752 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:16,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:16,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673432104] [2021-03-25 08:04:16,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:16,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:16,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95983383] [2021-03-25 08:04:16,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:16,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:16,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:16,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:16,768 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:16,768 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 24 transitions, 287 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,768 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:16,768 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:16,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:16,802 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-03-25 08:04:16,802 INFO L130 PetriNetUnfolder]: For 223/223 co-relation queries the response was YES. [2021-03-25 08:04:16,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 38 events. 0/38 cut-off events. For 223/223 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 95 event pairs, 0 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-03-25 08:04:16,802 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 7 selfloop transitions, 6 changer transitions 2/25 dead transitions. [2021-03-25 08:04:16,802 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 25 transitions, 321 flow [2021-03-25 08:04:16,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:16,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:16,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 298 transitions. [2021-03-25 08:04:16,803 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8032345013477089 [2021-03-25 08:04:16,803 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 298 transitions. [2021-03-25 08:04:16,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 298 transitions. [2021-03-25 08:04:16,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:16,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 298 transitions. [2021-03-25 08:04:16,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 42.57142857142857) internal successors, (298), 7 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,804 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,804 INFO L185 Difference]: Start difference. First operand has 89 places, 24 transitions, 287 flow. Second operand 7 states and 298 transitions. [2021-03-25 08:04:16,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 25 transitions, 321 flow [2021-03-25 08:04:16,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 25 transitions, 228 flow, removed 5 selfloop flow, removed 20 redundant places. [2021-03-25 08:04:16,805 INFO L241 Difference]: Finished difference. Result has 76 places, 22 transitions, 180 flow [2021-03-25 08:04:16,805 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=180, PETRI_PLACES=76, PETRI_TRANSITIONS=22} [2021-03-25 08:04:16,805 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 44 predicate places. [2021-03-25 08:04:16,805 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:16,805 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 22 transitions, 180 flow [2021-03-25 08:04:16,805 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 22 transitions, 180 flow [2021-03-25 08:04:16,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 22 transitions, 180 flow [2021-03-25 08:04:16,807 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-03-25 08:04:16,807 INFO L130 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2021-03-25 08:04:16,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 32 events. 0/32 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-25 08:04:16,807 INFO L142 LiptonReduction]: Number of co-enabled transitions 26 [2021-03-25 08:04:16,808 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:16,808 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:16,808 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-03-25 08:04:16,808 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 22 transitions, 180 flow [2021-03-25 08:04:16,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,808 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:16,808 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:16,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-03-25 08:04:16,808 INFO L428 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:16,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:16,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1512027732, now seen corresponding path program 118 times [2021-03-25 08:04:16,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:16,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400645314] [2021-03-25 08:04:16,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:16,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:16,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:16,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:16,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:04:16,832 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:16,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:16,845 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:16,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:16,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:16,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400645314] [2021-03-25 08:04:16,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:16,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:16,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674382678] [2021-03-25 08:04:16,858 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:16,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:16,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:16,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:16,859 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:16,859 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 22 transitions, 180 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,859 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:16,859 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:16,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:16,905 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2021-03-25 08:04:16,905 INFO L130 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2021-03-25 08:04:16,905 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 31 events. 0/31 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 1/32 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-25 08:04:16,905 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 5 selfloop transitions, 5 changer transitions 3/23 dead transitions. [2021-03-25 08:04:16,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 23 transitions, 210 flow [2021-03-25 08:04:16,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:16,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:16,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 297 transitions. [2021-03-25 08:04:16,906 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8005390835579514 [2021-03-25 08:04:16,906 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 297 transitions. [2021-03-25 08:04:16,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 297 transitions. [2021-03-25 08:04:16,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:16,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 297 transitions. [2021-03-25 08:04:16,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 42.42857142857143) internal successors, (297), 7 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,907 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,907 INFO L185 Difference]: Start difference. First operand has 71 places, 22 transitions, 180 flow. Second operand 7 states and 297 transitions. [2021-03-25 08:04:16,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 23 transitions, 210 flow [2021-03-25 08:04:16,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 23 transitions, 191 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:16,908 INFO L241 Difference]: Finished difference. Result has 72 places, 19 transitions, 131 flow [2021-03-25 08:04:16,908 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=131, PETRI_PLACES=72, PETRI_TRANSITIONS=19} [2021-03-25 08:04:16,908 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 40 predicate places. [2021-03-25 08:04:16,908 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:16,909 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 19 transitions, 131 flow [2021-03-25 08:04:16,909 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 19 transitions, 131 flow [2021-03-25 08:04:16,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 19 transitions, 131 flow [2021-03-25 08:04:16,910 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-25 08:04:16,910 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-25 08:04:16,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 24 events. 0/24 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 08:04:16,910 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-25 08:04:16,910 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:16,910 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:16,910 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-25 08:04:16,911 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 19 transitions, 131 flow [2021-03-25 08:04:16,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,911 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:16,911 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:16,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-03-25 08:04:16,911 INFO L428 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:16,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:16,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1563325492, now seen corresponding path program 119 times [2021-03-25 08:04:16,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:16,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130512471] [2021-03-25 08:04:16,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:16,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:16,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:16,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:16,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:16,927 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:16,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:16,937 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:16,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:16,950 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:16,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:16,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:16,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130512471] [2021-03-25 08:04:16,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:16,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:16,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994768981] [2021-03-25 08:04:16,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:16,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:16,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:16,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:16,964 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:16,965 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 19 transitions, 131 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,965 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:16,965 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:16,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:16,997 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-03-25 08:04:16,998 INFO L130 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2021-03-25 08:04:16,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 23 events. 0/23 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 08:04:16,998 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 3 selfloop transitions, 3 changer transitions 3/19 dead transitions. [2021-03-25 08:04:16,998 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 19 transitions, 149 flow [2021-03-25 08:04:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:16,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:16,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 296 transitions. [2021-03-25 08:04:16,999 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7978436657681941 [2021-03-25 08:04:16,999 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 296 transitions. [2021-03-25 08:04:16,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 296 transitions. [2021-03-25 08:04:16,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:16,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 296 transitions. [2021-03-25 08:04:16,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,999 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:16,999 INFO L185 Difference]: Start difference. First operand has 63 places, 19 transitions, 131 flow. Second operand 7 states and 296 transitions. [2021-03-25 08:04:16,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 19 transitions, 149 flow [2021-03-25 08:04:17,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 19 transitions, 113 flow, removed 4 selfloop flow, removed 12 redundant places. [2021-03-25 08:04:17,000 INFO L241 Difference]: Finished difference. Result has 58 places, 16 transitions, 73 flow [2021-03-25 08:04:17,000 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=73, PETRI_PLACES=58, PETRI_TRANSITIONS=16} [2021-03-25 08:04:17,000 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 26 predicate places. [2021-03-25 08:04:17,000 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:17,000 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 16 transitions, 73 flow [2021-03-25 08:04:17,000 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 16 transitions, 73 flow [2021-03-25 08:04:17,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 16 transitions, 73 flow [2021-03-25 08:04:17,001 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-25 08:04:17,001 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 08:04:17,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 16 events. 0/16 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 08:04:17,002 INFO L142 LiptonReduction]: Number of co-enabled transitions 6 [2021-03-25 08:04:17,002 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:17,002 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:17,002 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-25 08:04:17,002 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 16 transitions, 73 flow [2021-03-25 08:04:17,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:17,002 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:17,002 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:04:17,002 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-03-25 08:04:17,002 INFO L428 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 08:04:17,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:17,002 INFO L82 PathProgramCache]: Analyzing trace with hash -2089514098, now seen corresponding path program 120 times [2021-03-25 08:04:17,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:17,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283979838] [2021-03-25 08:04:17,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:17,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:17,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:17,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:17,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:17,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:17,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:17,017 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:17,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:17,027 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:17,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:17,040 INFO L142 QuantifierPusher]: treesize reduction 36, result has 47.8 percent of original size [2021-03-25 08:04:17,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:17,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:17,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283979838] [2021-03-25 08:04:17,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:17,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:04:17,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204465911] [2021-03-25 08:04:17,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:04:17,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:17,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:04:17,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:04:17,054 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 53 [2021-03-25 08:04:17,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 16 transitions, 73 flow. Second operand has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:17,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:17,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 53 [2021-03-25 08:04:17,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:17,094 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-03-25 08:04:17,094 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 08:04:17,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 15 events. 0/15 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 08:04:17,094 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2021-03-25 08:04:17,094 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 15 transitions, 79 flow [2021-03-25 08:04:17,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:04:17,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:04:17,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 293 transitions. [2021-03-25 08:04:17,095 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7897574123989218 [2021-03-25 08:04:17,095 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 293 transitions. [2021-03-25 08:04:17,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 293 transitions. [2021-03-25 08:04:17,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:17,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 293 transitions. [2021-03-25 08:04:17,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:17,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:17,096 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:17,096 INFO L185 Difference]: Start difference. First operand has 47 places, 16 transitions, 73 flow. Second operand 7 states and 293 transitions. [2021-03-25 08:04:17,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 15 transitions, 79 flow [2021-03-25 08:04:17,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 15 transitions, 62 flow, removed 2 selfloop flow, removed 8 redundant places. [2021-03-25 08:04:17,097 INFO L241 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2021-03-25 08:04:17,097 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2021-03-25 08:04:17,097 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 12 predicate places. [2021-03-25 08:04:17,097 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:17,097 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 0 transitions, 0 flow [2021-03-25 08:04:17,097 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 0 transitions, 0 flow [2021-03-25 08:04:17,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 08:04:17,097 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 08:04:17,097 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 08:04:17,097 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. [2021-03-25 08:04:17,097 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 08:04:17,098 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:17,098 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:17,098 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 08:04:17,098 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 08:04:17,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:17,099 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-03-25 08:04:17,102 INFO L202 PluginConnector]: Adding new model example_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 08:04:17 BasicIcfg [2021-03-25 08:04:17,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 08:04:17,102 INFO L168 Benchmark]: Toolchain (without parser) took 25990.98 ms. Allocated memory was 371.2 MB in the beginning and 775.9 MB in the end (delta: 404.8 MB). Free memory was 351.2 MB in the beginning and 473.9 MB in the end (delta: -122.7 MB). Peak memory consumption was 283.4 MB. Max. memory is 16.0 GB. [2021-03-25 08:04:17,102 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 371.2 MB. Free memory is still 352.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 08:04:17,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.51 ms. Allocated memory is still 371.2 MB. Free memory was 351.1 MB in the beginning and 349.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 08:04:17,102 INFO L168 Benchmark]: Boogie Preprocessor took 11.58 ms. Allocated memory is still 371.2 MB. Free memory was 349.6 MB in the beginning and 348.7 MB in the end (delta: 849.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 08:04:17,103 INFO L168 Benchmark]: RCFGBuilder took 203.99 ms. Allocated memory is still 371.2 MB. Free memory was 348.7 MB in the beginning and 338.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-25 08:04:17,103 INFO L168 Benchmark]: TraceAbstraction took 25747.49 ms. Allocated memory was 371.2 MB in the beginning and 775.9 MB in the end (delta: 404.8 MB). Free memory was 338.2 MB in the beginning and 473.9 MB in the end (delta: -135.7 MB). Peak memory consumption was 270.8 MB. Max. memory is 16.0 GB. [2021-03-25 08:04:17,103 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 0.12 ms. Allocated memory is still 371.2 MB. Free memory is still 352.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 20.51 ms. Allocated memory is still 371.2 MB. Free memory was 351.1 MB in the beginning and 349.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.58 ms. Allocated memory is still 371.2 MB. Free memory was 349.6 MB in the beginning and 348.7 MB in the end (delta: 849.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 203.99 ms. Allocated memory is still 371.2 MB. Free memory was 348.7 MB in the beginning and 338.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 25747.49 ms. Allocated memory was 371.2 MB in the beginning and 775.9 MB in the end (delta: 404.8 MB). Free memory was 338.2 MB in the beginning and 473.9 MB in the end (delta: -135.7 MB). Peak memory consumption was 270.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.6ms, 37 PlacesBefore, 32 PlacesAfterwards, 41 TransitionsBefore, 36 TransitionsAfterwards, 440 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 130 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 130, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 120, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 120, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 130, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 120, unknown conditional: 0, unknown unconditional: 120] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.7ms, 24 PlacesBefore, 24 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 184 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.5ms, 25 PlacesBefore, 25 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 116 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8ms, 26 PlacesBefore, 26 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8ms, 27 PlacesBefore, 27 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 60 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1ms, 37 PlacesBefore, 36 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 72 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.5ms, 45 PlacesBefore, 44 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 88 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.8ms, 53 PlacesBefore, 52 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.3ms, 60 PlacesBefore, 59 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 154 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.3ms, 68 PlacesBefore, 67 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 176 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.1ms, 76 PlacesBefore, 75 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.0ms, 82 PlacesBefore, 81 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 224 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.9ms, 89 PlacesBefore, 88 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 230 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.0ms, 94 PlacesBefore, 93 PlacesAfterwards, 67 TransitionsBefore, 67 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.4ms, 98 PlacesBefore, 97 PlacesAfterwards, 76 TransitionsBefore, 76 TransitionsAfterwards, 244 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.9ms, 104 PlacesBefore, 103 PlacesAfterwards, 87 TransitionsBefore, 87 TransitionsAfterwards, 278 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.6ms, 107 PlacesBefore, 105 PlacesAfterwards, 87 TransitionsBefore, 87 TransitionsAfterwards, 274 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.6ms, 111 PlacesBefore, 110 PlacesAfterwards, 89 TransitionsBefore, 89 TransitionsAfterwards, 280 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.8ms, 114 PlacesBefore, 112 PlacesAfterwards, 89 TransitionsBefore, 89 TransitionsAfterwards, 274 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.4ms, 114 PlacesBefore, 113 PlacesAfterwards, 89 TransitionsBefore, 89 TransitionsAfterwards, 274 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.2ms, 119 PlacesBefore, 118 PlacesAfterwards, 95 TransitionsBefore, 95 TransitionsAfterwards, 310 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.6ms, 124 PlacesBefore, 123 PlacesAfterwards, 95 TransitionsBefore, 95 TransitionsAfterwards, 302 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 66.4ms, 126 PlacesBefore, 125 PlacesAfterwards, 94 TransitionsBefore, 94 TransitionsAfterwards, 298 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.5ms, 131 PlacesBefore, 130 PlacesAfterwards, 99 TransitionsBefore, 99 TransitionsAfterwards, 310 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.9ms, 135 PlacesBefore, 134 PlacesAfterwards, 99 TransitionsBefore, 99 TransitionsAfterwards, 316 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.6ms, 137 PlacesBefore, 136 PlacesAfterwards, 99 TransitionsBefore, 99 TransitionsAfterwards, 320 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.9ms, 143 PlacesBefore, 142 PlacesAfterwards, 102 TransitionsBefore, 102 TransitionsAfterwards, 332 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.0ms, 145 PlacesBefore, 144 PlacesAfterwards, 102 TransitionsBefore, 102 TransitionsAfterwards, 334 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.4ms, 147 PlacesBefore, 146 PlacesAfterwards, 100 TransitionsBefore, 100 TransitionsAfterwards, 322 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.8ms, 148 PlacesBefore, 145 PlacesAfterwards, 97 TransitionsBefore, 97 TransitionsAfterwards, 304 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.1ms, 143 PlacesBefore, 142 PlacesAfterwards, 97 TransitionsBefore, 97 TransitionsAfterwards, 308 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.4ms, 146 PlacesBefore, 145 PlacesAfterwards, 99 TransitionsBefore, 99 TransitionsAfterwards, 320 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.8ms, 148 PlacesBefore, 147 PlacesAfterwards, 96 TransitionsBefore, 96 TransitionsAfterwards, 310 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.8ms, 150 PlacesBefore, 149 PlacesAfterwards, 93 TransitionsBefore, 93 TransitionsAfterwards, 296 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.5ms, 154 PlacesBefore, 153 PlacesAfterwards, 99 TransitionsBefore, 99 TransitionsAfterwards, 310 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.2ms, 161 PlacesBefore, 160 PlacesAfterwards, 108 TransitionsBefore, 108 TransitionsAfterwards, 356 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 77.9ms, 167 PlacesBefore, 166 PlacesAfterwards, 115 TransitionsBefore, 115 TransitionsAfterwards, 386 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.9ms, 171 PlacesBefore, 169 PlacesAfterwards, 115 TransitionsBefore, 115 TransitionsAfterwards, 376 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.1ms, 173 PlacesBefore, 171 PlacesAfterwards, 115 TransitionsBefore, 115 TransitionsAfterwards, 374 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.6ms, 176 PlacesBefore, 174 PlacesAfterwards, 115 TransitionsBefore, 115 TransitionsAfterwards, 370 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.5ms, 177 PlacesBefore, 175 PlacesAfterwards, 115 TransitionsBefore, 115 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.8ms, 183 PlacesBefore, 182 PlacesAfterwards, 120 TransitionsBefore, 120 TransitionsAfterwards, 386 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 52.0ms, 186 PlacesBefore, 184 PlacesAfterwards, 117 TransitionsBefore, 117 TransitionsAfterwards, 366 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.7ms, 187 PlacesBefore, 186 PlacesAfterwards, 121 TransitionsBefore, 121 TransitionsAfterwards, 366 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.7ms, 190 PlacesBefore, 189 PlacesAfterwards, 118 TransitionsBefore, 118 TransitionsAfterwards, 346 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.7ms, 193 PlacesBefore, 191 PlacesAfterwards, 117 TransitionsBefore, 117 TransitionsAfterwards, 336 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.9ms, 197 PlacesBefore, 196 PlacesAfterwards, 128 TransitionsBefore, 128 TransitionsAfterwards, 340 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 55.4ms, 203 PlacesBefore, 202 PlacesAfterwards, 139 TransitionsBefore, 139 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 58.6ms, 208 PlacesBefore, 207 PlacesAfterwards, 140 TransitionsBefore, 140 TransitionsAfterwards, 354 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.8ms, 212 PlacesBefore, 210 PlacesAfterwards, 138 TransitionsBefore, 138 TransitionsAfterwards, 350 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.4ms, 214 PlacesBefore, 213 PlacesAfterwards, 140 TransitionsBefore, 140 TransitionsAfterwards, 358 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.2ms, 218 PlacesBefore, 216 PlacesAfterwards, 138 TransitionsBefore, 138 TransitionsAfterwards, 354 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.4ms, 218 PlacesBefore, 216 PlacesAfterwards, 135 TransitionsBefore, 135 TransitionsAfterwards, 342 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 93.5ms, 218 PlacesBefore, 216 PlacesAfterwards, 137 TransitionsBefore, 137 TransitionsAfterwards, 338 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.2ms, 217 PlacesBefore, 215 PlacesAfterwards, 133 TransitionsBefore, 133 TransitionsAfterwards, 320 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.0ms, 219 PlacesBefore, 218 PlacesAfterwards, 137 TransitionsBefore, 137 TransitionsAfterwards, 326 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 54.4ms, 222 PlacesBefore, 221 PlacesAfterwards, 134 TransitionsBefore, 134 TransitionsAfterwards, 326 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.3ms, 224 PlacesBefore, 222 PlacesAfterwards, 131 TransitionsBefore, 131 TransitionsAfterwards, 326 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.6ms, 225 PlacesBefore, 223 PlacesAfterwards, 133 TransitionsBefore, 133 TransitionsAfterwards, 318 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.8ms, 226 PlacesBefore, 224 PlacesAfterwards, 129 TransitionsBefore, 129 TransitionsAfterwards, 302 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.1ms, 227 PlacesBefore, 225 PlacesAfterwards, 129 TransitionsBefore, 129 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.1ms, 230 PlacesBefore, 228 PlacesAfterwards, 128 TransitionsBefore, 128 TransitionsAfterwards, 292 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.9ms, 234 PlacesBefore, 233 PlacesAfterwards, 136 TransitionsBefore, 136 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.8ms, 237 PlacesBefore, 235 PlacesAfterwards, 133 TransitionsBefore, 133 TransitionsAfterwards, 280 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 58.0ms, 240 PlacesBefore, 239 PlacesAfterwards, 142 TransitionsBefore, 142 TransitionsAfterwards, 298 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.8ms, 245 PlacesBefore, 244 PlacesAfterwards, 146 TransitionsBefore, 146 TransitionsAfterwards, 302 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.3ms, 247 PlacesBefore, 242 PlacesAfterwards, 143 TransitionsBefore, 143 TransitionsAfterwards, 290 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.1ms, 243 PlacesBefore, 241 PlacesAfterwards, 141 TransitionsBefore, 141 TransitionsAfterwards, 284 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 52.7ms, 245 PlacesBefore, 240 PlacesAfterwards, 137 TransitionsBefore, 137 TransitionsAfterwards, 280 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.5ms, 241 PlacesBefore, 239 PlacesAfterwards, 135 TransitionsBefore, 135 TransitionsAfterwards, 276 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.1ms, 244 PlacesBefore, 243 PlacesAfterwards, 140 TransitionsBefore, 140 TransitionsAfterwards, 278 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.0ms, 248 PlacesBefore, 247 PlacesAfterwards, 140 TransitionsBefore, 140 TransitionsAfterwards, 268 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.0ms, 251 PlacesBefore, 246 PlacesAfterwards, 137 TransitionsBefore, 137 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.7ms, 248 PlacesBefore, 246 PlacesAfterwards, 135 TransitionsBefore, 135 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.8ms, 249 PlacesBefore, 248 PlacesAfterwards, 133 TransitionsBefore, 133 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.7ms, 251 PlacesBefore, 246 PlacesAfterwards, 129 TransitionsBefore, 129 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.3ms, 248 PlacesBefore, 245 PlacesAfterwards, 126 TransitionsBefore, 126 TransitionsAfterwards, 228 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.8ms, 247 PlacesBefore, 242 PlacesAfterwards, 122 TransitionsBefore, 122 TransitionsAfterwards, 224 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.0ms, 248 PlacesBefore, 247 PlacesAfterwards, 133 TransitionsBefore, 133 TransitionsAfterwards, 230 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.8ms, 253 PlacesBefore, 252 PlacesAfterwards, 134 TransitionsBefore, 134 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.3ms, 258 PlacesBefore, 257 PlacesAfterwards, 135 TransitionsBefore, 135 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.5ms, 260 PlacesBefore, 259 PlacesAfterwards, 132 TransitionsBefore, 132 TransitionsAfterwards, 226 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.3ms, 262 PlacesBefore, 258 PlacesAfterwards, 129 TransitionsBefore, 129 TransitionsAfterwards, 220 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.3ms, 261 PlacesBefore, 259 PlacesAfterwards, 128 TransitionsBefore, 128 TransitionsAfterwards, 218 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.9ms, 261 PlacesBefore, 256 PlacesAfterwards, 123 TransitionsBefore, 123 TransitionsAfterwards, 214 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.7ms, 257 PlacesBefore, 255 PlacesAfterwards, 120 TransitionsBefore, 120 TransitionsAfterwards, 212 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.1ms, 256 PlacesBefore, 254 PlacesAfterwards, 118 TransitionsBefore, 118 TransitionsAfterwards, 212 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.9ms, 254 PlacesBefore, 252 PlacesAfterwards, 115 TransitionsBefore, 115 TransitionsAfterwards, 208 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.2ms, 253 PlacesBefore, 251 PlacesAfterwards, 113 TransitionsBefore, 113 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.3ms, 252 PlacesBefore, 247 PlacesAfterwards, 110 TransitionsBefore, 110 TransitionsAfterwards, 188 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.4ms, 246 PlacesBefore, 241 PlacesAfterwards, 106 TransitionsBefore, 106 TransitionsAfterwards, 170 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.2ms, 240 PlacesBefore, 238 PlacesAfterwards, 104 TransitionsBefore, 104 TransitionsAfterwards, 158 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.1ms, 240 PlacesBefore, 238 PlacesAfterwards, 102 TransitionsBefore, 102 TransitionsAfterwards, 152 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.2ms, 240 PlacesBefore, 235 PlacesAfterwards, 99 TransitionsBefore, 99 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.9ms, 235 PlacesBefore, 233 PlacesAfterwards, 96 TransitionsBefore, 96 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.0ms, 234 PlacesBefore, 229 PlacesAfterwards, 94 TransitionsBefore, 94 TransitionsAfterwards, 134 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.7ms, 231 PlacesBefore, 226 PlacesAfterwards, 90 TransitionsBefore, 90 TransitionsAfterwards, 124 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.6ms, 228 PlacesBefore, 220 PlacesAfterwards, 87 TransitionsBefore, 87 TransitionsAfterwards, 118 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.2ms, 219 PlacesBefore, 211 PlacesAfterwards, 85 TransitionsBefore, 85 TransitionsAfterwards, 118 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.5ms, 208 PlacesBefore, 192 PlacesAfterwards, 81 TransitionsBefore, 81 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.0ms, 182 PlacesBefore, 181 PlacesAfterwards, 81 TransitionsBefore, 81 TransitionsAfterwards, 100 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.5ms, 184 PlacesBefore, 183 PlacesAfterwards, 78 TransitionsBefore, 78 TransitionsAfterwards, 100 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.4ms, 186 PlacesBefore, 184 PlacesAfterwards, 76 TransitionsBefore, 76 TransitionsAfterwards, 96 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.2ms, 185 PlacesBefore, 181 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 90 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.2ms, 181 PlacesBefore, 169 PlacesAfterwards, 68 TransitionsBefore, 68 TransitionsAfterwards, 88 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.2ms, 168 PlacesBefore, 166 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 86 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.1ms, 167 PlacesBefore, 165 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 82 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.2ms, 166 PlacesBefore, 164 PlacesAfterwards, 61 TransitionsBefore, 61 TransitionsAfterwards, 82 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.6ms, 165 PlacesBefore, 163 PlacesAfterwards, 59 TransitionsBefore, 59 TransitionsAfterwards, 78 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.0ms, 164 PlacesBefore, 162 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 78 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.9ms, 163 PlacesBefore, 161 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 78 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.5ms, 161 PlacesBefore, 156 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 76 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6ms, 154 PlacesBefore, 152 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 68 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.1ms, 152 PlacesBefore, 141 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 68 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3ms, 139 PlacesBefore, 134 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 64 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.6ms, 132 PlacesBefore, 127 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 58 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.5ms, 127 PlacesBefore, 125 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5ms, 124 PlacesBefore, 116 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 40 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1ms, 112 PlacesBefore, 104 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4ms, 104 PlacesBefore, 99 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 32 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9ms, 100 PlacesBefore, 89 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 32 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2ms, 76 PlacesBefore, 71 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 26 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8ms, 72 PlacesBefore, 63 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4ms, 58 PlacesBefore, 47 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 6 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 44 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: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 23]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 16.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 25585.5ms, OverallIterations: 124, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 12917.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 197.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1422 SDtfs, 2055 SDslu, 1147 SDs, 0 SdLazy, 2594 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1446.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 852 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 724 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 8163.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4842occurred in iteration=65, InterpolantAutomatonStates: 852, 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: 67.0ms SsaConstructionTime, 138.6ms SatisfiabilityAnalysisTime, 7682.6ms InterpolantComputationTime, 1984 NumberOfCodeBlocks, 1984 NumberOfCodeBlocksAsserted, 124 NumberOfCheckSat, 1860 ConstructedInterpolants, 0 QuantifiedInterpolants, 34736 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 124 InterpolantComputations, 124 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...