/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:21:54,318 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:21:54,381 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-12-09 15:21:54,403 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:21:54,404 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:21:54,404 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:21:54,405 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:21:54,405 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:21:54,405 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:21:54,408 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:21:54,409 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:21:54,409 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:21:54,409 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:21:54,410 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:21:54,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:21:54,410 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:21:54,410 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:21:54,411 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:21:54,411 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:21:54,411 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:21:54,411 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:21:54,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:21:54,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:21:54,412 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:21:54,412 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:21:54,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:21:54,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:21:54,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:21:54,413 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:21:54,413 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:21:54,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:21:54,414 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:21:54,414 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:21:54,414 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:21:54,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:21:54,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:21:54,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:21:54,609 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:21:54,609 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:21:54,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.wvr.c [2023-12-09 15:21:55,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:21:55,782 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:21:55,782 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.wvr.c [2023-12-09 15:21:55,790 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d61b5fade/4817abe73f2b4c689b849e6c5ab985df/FLAG220ccce7f [2023-12-09 15:21:55,807 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d61b5fade/4817abe73f2b4c689b849e6c5ab985df [2023-12-09 15:21:55,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:21:55,811 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:21:55,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:21:55,813 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:21:55,816 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:21:55,817 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:21:55" (1/1) ... [2023-12-09 15:21:55,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5435c2d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:55, skipping insertion in model container [2023-12-09 15:21:55,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:21:55" (1/1) ... [2023-12-09 15:21:55,848 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:21:55,982 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.wvr.c[4124,4137] [2023-12-09 15:21:55,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:21:55,995 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:21:56,014 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.wvr.c[4124,4137] [2023-12-09 15:21:56,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:21:56,024 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:21:56,024 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:21:56,029 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:21:56,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:56 WrapperNode [2023-12-09 15:21:56,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:21:56,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:21:56,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:21:56,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:21:56,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:56" (1/1) ... [2023-12-09 15:21:56,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:56" (1/1) ... [2023-12-09 15:21:56,063 INFO L138 Inliner]: procedures = 25, calls = 63, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 333 [2023-12-09 15:21:56,063 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:21:56,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:21:56,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:21:56,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:21:56,071 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:56" (1/1) ... [2023-12-09 15:21:56,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:56" (1/1) ... [2023-12-09 15:21:56,074 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:56" (1/1) ... [2023-12-09 15:21:56,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:56" (1/1) ... [2023-12-09 15:21:56,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:56" (1/1) ... [2023-12-09 15:21:56,090 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:56" (1/1) ... [2023-12-09 15:21:56,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:56" (1/1) ... [2023-12-09 15:21:56,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:56" (1/1) ... [2023-12-09 15:21:56,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:21:56,100 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:21:56,100 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:21:56,101 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:21:56,101 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:56" (1/1) ... [2023-12-09 15:21:56,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:21:56,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:21:56,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-09 15:21:56,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-09 15:21:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:21:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:21:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:21:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:21:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:21:56,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:21:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:21:56,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:21:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:21:56,155 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:21:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:21:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 15:21:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 15:21:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-09 15:21:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:21:56,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:21:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:21:56,156 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:21:56,245 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:21:56,247 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:21:56,626 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:21:56,737 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:21:56,738 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-09 15:21:56,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:21:56 BoogieIcfgContainer [2023-12-09 15:21:56,739 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:21:56,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:21:56,741 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:21:56,743 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:21:56,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:21:55" (1/3) ... [2023-12-09 15:21:56,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a99d6d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:21:56, skipping insertion in model container [2023-12-09 15:21:56,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:56" (2/3) ... [2023-12-09 15:21:56,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a99d6d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:21:56, skipping insertion in model container [2023-12-09 15:21:56,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:21:56" (3/3) ... [2023-12-09 15:21:56,744 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-ring-nondet.wvr.c [2023-12-09 15:21:56,758 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:21:56,759 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:21:56,759 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:21:56,838 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-12-09 15:21:56,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 277 places, 292 transitions, 605 flow [2023-12-09 15:21:56,953 INFO L124 PetriNetUnfolderBase]: 25/289 cut-off events. [2023-12-09 15:21:56,954 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:21:56,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 289 events. 25/289 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 231 event pairs, 0 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 248. Up to 3 conditions per place. [2023-12-09 15:21:56,960 INFO L82 GeneralOperation]: Start removeDead. Operand has 277 places, 292 transitions, 605 flow [2023-12-09 15:21:56,964 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 278 transitions, 574 flow [2023-12-09 15:21:56,970 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:21:56,974 INFO L362 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@37ee0a8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:21:56,975 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-09 15:21:57,021 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:21:57,022 INFO L124 PetriNetUnfolderBase]: 25/277 cut-off events. [2023-12-09 15:21:57,022 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:21:57,022 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:21:57,023 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:21:57,023 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:21:57,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:21:57,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1602609321, now seen corresponding path program 1 times [2023-12-09 15:21:57,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:21:57,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825313884] [2023-12-09 15:21:57,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:21:57,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:21:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:21:57,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:21:57,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:21:57,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825313884] [2023-12-09 15:21:57,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825313884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:21:57,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:21:57,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-09 15:21:57,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037756376] [2023-12-09 15:21:57,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:21:57,320 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-09 15:21:57,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:21:57,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-09 15:21:57,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-09 15:21:57,347 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 292 [2023-12-09 15:21:57,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 278 transitions, 574 flow. Second operand has 2 states, 2 states have (on average 265.5) internal successors, (531), 2 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:57,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:21:57,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 292 [2023-12-09 15:21:57,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:21:57,464 INFO L124 PetriNetUnfolderBase]: 102/551 cut-off events. [2023-12-09 15:21:57,465 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2023-12-09 15:21:57,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 551 events. 102/551 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2000 event pairs, 56 based on Foata normal form. 84/580 useless extension candidates. Maximal degree in co-relation 417. Up to 146 conditions per place. [2023-12-09 15:21:57,472 INFO L140 encePairwiseOnDemand]: 275/292 looper letters, 13 selfloop transitions, 0 changer transitions 8/261 dead transitions. [2023-12-09 15:21:57,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 261 transitions, 566 flow [2023-12-09 15:21:57,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-09 15:21:57,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-12-09 15:21:57,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 552 transitions. [2023-12-09 15:21:57,486 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.9452054794520548 [2023-12-09 15:21:57,487 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 552 transitions. [2023-12-09 15:21:57,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 552 transitions. [2023-12-09 15:21:57,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:21:57,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 552 transitions. [2023-12-09 15:21:57,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 276.0) internal successors, (552), 2 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:57,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:57,498 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:57,501 INFO L308 CegarLoopForPetriNet]: 263 programPoint places, 1 predicate places. [2023-12-09 15:21:57,501 INFO L500 AbstractCegarLoop]: Abstraction has has 264 places, 261 transitions, 566 flow [2023-12-09 15:21:57,501 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 265.5) internal successors, (531), 2 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:57,501 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:21:57,502 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:21:57,502 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:21:57,502 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:21:57,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:21:57,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1383835553, now seen corresponding path program 1 times [2023-12-09 15:21:57,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:21:57,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883617299] [2023-12-09 15:21:57,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:21:57,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:21:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:21:57,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:21:57,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:21:57,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883617299] [2023-12-09 15:21:57,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883617299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:21:57,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:21:57,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 15:21:57,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374325365] [2023-12-09 15:21:57,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:21:57,841 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:21:57,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:21:57,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:21:57,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 15:21:57,843 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 292 [2023-12-09 15:21:57,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 261 transitions, 566 flow. Second operand has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:57,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:21:57,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 292 [2023-12-09 15:21:57,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:21:57,952 INFO L124 PetriNetUnfolderBase]: 121/596 cut-off events. [2023-12-09 15:21:57,953 INFO L125 PetriNetUnfolderBase]: For 125/197 co-relation queries the response was YES. [2023-12-09 15:21:57,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 974 conditions, 596 events. 121/596 cut-off events. For 125/197 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2086 event pairs, 28 based on Foata normal form. 8/539 useless extension candidates. Maximal degree in co-relation 667. Up to 163 conditions per place. [2023-12-09 15:21:57,958 INFO L140 encePairwiseOnDemand]: 289/292 looper letters, 22 selfloop transitions, 2 changer transitions 8/268 dead transitions. [2023-12-09 15:21:57,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 268 transitions, 648 flow [2023-12-09 15:21:57,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:21:57,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:21:57,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 796 transitions. [2023-12-09 15:21:57,961 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.908675799086758 [2023-12-09 15:21:57,961 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 796 transitions. [2023-12-09 15:21:57,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 796 transitions. [2023-12-09 15:21:57,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:21:57,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 796 transitions. [2023-12-09 15:21:57,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:57,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 292.0) internal successors, (1168), 4 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:57,966 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 292.0) internal successors, (1168), 4 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:57,967 INFO L308 CegarLoopForPetriNet]: 263 programPoint places, 3 predicate places. [2023-12-09 15:21:57,967 INFO L500 AbstractCegarLoop]: Abstraction has has 266 places, 268 transitions, 648 flow [2023-12-09 15:21:57,968 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:57,968 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:21:57,968 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:21:57,968 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:21:57,968 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:21:57,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:21:57,969 INFO L85 PathProgramCache]: Analyzing trace with hash 778828119, now seen corresponding path program 2 times [2023-12-09 15:21:57,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:21:57,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089611557] [2023-12-09 15:21:57,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:21:57,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:21:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:21:58,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:21:58,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:21:58,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089611557] [2023-12-09 15:21:58,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089611557] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:21:58,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:21:58,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:21:58,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972511942] [2023-12-09 15:21:58,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:21:58,270 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:21:58,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:21:58,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:21:58,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:21:58,274 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 292 [2023-12-09 15:21:58,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 268 transitions, 648 flow. Second operand has 6 states, 6 states have (on average 220.66666666666666) internal successors, (1324), 6 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:58,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:21:58,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 292 [2023-12-09 15:21:58,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:21:58,570 INFO L124 PetriNetUnfolderBase]: 157/822 cut-off events. [2023-12-09 15:21:58,570 INFO L125 PetriNetUnfolderBase]: For 319/387 co-relation queries the response was YES. [2023-12-09 15:21:58,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1576 conditions, 822 events. 157/822 cut-off events. For 319/387 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3053 event pairs, 41 based on Foata normal form. 11/759 useless extension candidates. Maximal degree in co-relation 915. Up to 231 conditions per place. [2023-12-09 15:21:58,577 INFO L140 encePairwiseOnDemand]: 280/292 looper letters, 64 selfloop transitions, 8 changer transitions 48/312 dead transitions. [2023-12-09 15:21:58,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 312 transitions, 989 flow [2023-12-09 15:21:58,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:21:58,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:21:58,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2024 transitions. [2023-12-09 15:21:58,581 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7701674277016742 [2023-12-09 15:21:58,581 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2024 transitions. [2023-12-09 15:21:58,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2024 transitions. [2023-12-09 15:21:58,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:21:58,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2024 transitions. [2023-12-09 15:21:58,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 224.88888888888889) internal successors, (2024), 9 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:58,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 292.0) internal successors, (2920), 10 states have internal predecessors, (2920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:58,591 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 292.0) internal successors, (2920), 10 states have internal predecessors, (2920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:58,592 INFO L308 CegarLoopForPetriNet]: 263 programPoint places, 11 predicate places. [2023-12-09 15:21:58,592 INFO L500 AbstractCegarLoop]: Abstraction has has 274 places, 312 transitions, 989 flow [2023-12-09 15:21:58,594 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 220.66666666666666) internal successors, (1324), 6 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:58,594 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:21:58,594 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:21:58,594 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:21:58,594 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:21:58,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:21:58,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1783613858, now seen corresponding path program 1 times [2023-12-09 15:21:58,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:21:58,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103883093] [2023-12-09 15:21:58,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:21:58,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:21:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:21:58,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:21:58,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:21:58,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103883093] [2023-12-09 15:21:58,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103883093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:21:58,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:21:58,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:21:58,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395880557] [2023-12-09 15:21:58,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:21:58,812 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:21:58,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:21:58,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:21:58,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:21:58,815 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 292 [2023-12-09 15:21:58,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 312 transitions, 989 flow. Second operand has 6 states, 6 states have (on average 222.33333333333334) internal successors, (1334), 6 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:58,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:21:58,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 292 [2023-12-09 15:21:58,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:21:59,124 INFO L124 PetriNetUnfolderBase]: 176/1180 cut-off events. [2023-12-09 15:21:59,124 INFO L125 PetriNetUnfolderBase]: For 785/845 co-relation queries the response was YES. [2023-12-09 15:21:59,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2520 conditions, 1180 events. 176/1180 cut-off events. For 785/845 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 5712 event pairs, 62 based on Foata normal form. 9/1094 useless extension candidates. Maximal degree in co-relation 1413. Up to 282 conditions per place. [2023-12-09 15:21:59,131 INFO L140 encePairwiseOnDemand]: 281/292 looper letters, 67 selfloop transitions, 8 changer transitions 103/371 dead transitions. [2023-12-09 15:21:59,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 371 transitions, 1636 flow [2023-12-09 15:21:59,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:21:59,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:21:59,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2018 transitions. [2023-12-09 15:21:59,136 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7678843226788432 [2023-12-09 15:21:59,136 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2018 transitions. [2023-12-09 15:21:59,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2018 transitions. [2023-12-09 15:21:59,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:21:59,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2018 transitions. [2023-12-09 15:21:59,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 224.22222222222223) internal successors, (2018), 9 states have internal predecessors, (2018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:59,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 292.0) internal successors, (2920), 10 states have internal predecessors, (2920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:59,145 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 292.0) internal successors, (2920), 10 states have internal predecessors, (2920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:59,147 INFO L308 CegarLoopForPetriNet]: 263 programPoint places, 19 predicate places. [2023-12-09 15:21:59,147 INFO L500 AbstractCegarLoop]: Abstraction has has 282 places, 371 transitions, 1636 flow [2023-12-09 15:21:59,148 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 222.33333333333334) internal successors, (1334), 6 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:59,148 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:21:59,148 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:21:59,148 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:21:59,149 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:21:59,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:21:59,150 INFO L85 PathProgramCache]: Analyzing trace with hash 187390691, now seen corresponding path program 1 times [2023-12-09 15:21:59,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:21:59,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632649394] [2023-12-09 15:21:59,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:21:59,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:21:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:21:59,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:21:59,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:21:59,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632649394] [2023-12-09 15:21:59,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632649394] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:21:59,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:21:59,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:21:59,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502122474] [2023-12-09 15:21:59,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:21:59,425 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:21:59,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:21:59,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:21:59,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:21:59,426 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 292 [2023-12-09 15:21:59,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 371 transitions, 1636 flow. Second operand has 6 states, 6 states have (on average 223.0) internal successors, (1338), 6 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:59,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:21:59,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 292 [2023-12-09 15:21:59,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:21:59,742 INFO L124 PetriNetUnfolderBase]: 323/1931 cut-off events. [2023-12-09 15:21:59,742 INFO L125 PetriNetUnfolderBase]: For 2133/2321 co-relation queries the response was YES. [2023-12-09 15:21:59,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4756 conditions, 1931 events. 323/1931 cut-off events. For 2133/2321 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 12108 event pairs, 103 based on Foata normal form. 30/1816 useless extension candidates. Maximal degree in co-relation 2516. Up to 502 conditions per place. [2023-12-09 15:21:59,753 INFO L140 encePairwiseOnDemand]: 280/292 looper letters, 71 selfloop transitions, 8 changer transitions 162/434 dead transitions. [2023-12-09 15:21:59,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 434 transitions, 2653 flow [2023-12-09 15:21:59,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:21:59,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:21:59,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2006 transitions. [2023-12-09 15:21:59,757 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7633181126331812 [2023-12-09 15:21:59,757 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2006 transitions. [2023-12-09 15:21:59,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2006 transitions. [2023-12-09 15:21:59,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:21:59,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2006 transitions. [2023-12-09 15:21:59,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 222.88888888888889) internal successors, (2006), 9 states have internal predecessors, (2006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:59,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 292.0) internal successors, (2920), 10 states have internal predecessors, (2920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:59,794 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 292.0) internal successors, (2920), 10 states have internal predecessors, (2920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:59,795 INFO L308 CegarLoopForPetriNet]: 263 programPoint places, 27 predicate places. [2023-12-09 15:21:59,795 INFO L500 AbstractCegarLoop]: Abstraction has has 290 places, 434 transitions, 2653 flow [2023-12-09 15:21:59,795 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 223.0) internal successors, (1338), 6 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:21:59,795 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:21:59,796 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:21:59,796 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:21:59,796 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:21:59,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:21:59,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1843840450, now seen corresponding path program 1 times [2023-12-09 15:21:59,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:21:59,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217472410] [2023-12-09 15:21:59,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:21:59,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:21:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:22:00,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-09 15:22:00,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:22:00,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217472410] [2023-12-09 15:22:00,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217472410] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:22:00,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:22:00,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:22:00,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646754090] [2023-12-09 15:22:00,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:22:00,004 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:22:00,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:22:00,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:22:00,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:22:00,005 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 292 [2023-12-09 15:22:00,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 434 transitions, 2653 flow. Second operand has 5 states, 5 states have (on average 215.2) internal successors, (1076), 5 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:00,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:22:00,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 292 [2023-12-09 15:22:00,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:22:00,477 INFO L124 PetriNetUnfolderBase]: 523/2802 cut-off events. [2023-12-09 15:22:00,477 INFO L125 PetriNetUnfolderBase]: For 6190/6680 co-relation queries the response was YES. [2023-12-09 15:22:00,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7665 conditions, 2802 events. 523/2802 cut-off events. For 6190/6680 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 19541 event pairs, 135 based on Foata normal form. 0/2480 useless extension candidates. Maximal degree in co-relation 3631. Up to 700 conditions per place. [2023-12-09 15:22:00,495 INFO L140 encePairwiseOnDemand]: 279/292 looper letters, 80 selfloop transitions, 3 changer transitions 187/472 dead transitions. [2023-12-09 15:22:00,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 472 transitions, 3457 flow [2023-12-09 15:22:00,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:22:00,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 15:22:00,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1509 transitions. [2023-12-09 15:22:00,499 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7382583170254403 [2023-12-09 15:22:00,499 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1509 transitions. [2023-12-09 15:22:00,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1509 transitions. [2023-12-09 15:22:00,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:22:00,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1509 transitions. [2023-12-09 15:22:00,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 215.57142857142858) internal successors, (1509), 7 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:00,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 292.0) internal successors, (2336), 8 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:00,505 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 292.0) internal successors, (2336), 8 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:00,506 INFO L308 CegarLoopForPetriNet]: 263 programPoint places, 33 predicate places. [2023-12-09 15:22:00,506 INFO L500 AbstractCegarLoop]: Abstraction has has 296 places, 472 transitions, 3457 flow [2023-12-09 15:22:00,506 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 215.2) internal successors, (1076), 5 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:00,506 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:22:00,507 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:22:00,507 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:22:00,507 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:22:00,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:22:00,507 INFO L85 PathProgramCache]: Analyzing trace with hash 456476817, now seen corresponding path program 1 times [2023-12-09 15:22:00,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:22:00,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680790025] [2023-12-09 15:22:00,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:22:00,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:22:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:22:00,597 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-09 15:22:00,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:22:00,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680790025] [2023-12-09 15:22:00,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680790025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:22:00,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:22:00,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 15:22:00,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006210460] [2023-12-09 15:22:00,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:22:00,599 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:22:00,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:22:00,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:22:00,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 15:22:00,600 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 292 [2023-12-09 15:22:00,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 472 transitions, 3457 flow. Second operand has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:00,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:22:00,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 292 [2023-12-09 15:22:00,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:22:01,175 INFO L124 PetriNetUnfolderBase]: 659/3346 cut-off events. [2023-12-09 15:22:01,175 INFO L125 PetriNetUnfolderBase]: For 9786/9786 co-relation queries the response was YES. [2023-12-09 15:22:01,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10316 conditions, 3346 events. 659/3346 cut-off events. For 9786/9786 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 25384 event pairs, 152 based on Foata normal form. 40/2978 useless extension candidates. Maximal degree in co-relation 5140. Up to 807 conditions per place. [2023-12-09 15:22:01,199 INFO L140 encePairwiseOnDemand]: 288/292 looper letters, 46 selfloop transitions, 4 changer transitions 229/525 dead transitions. [2023-12-09 15:22:01,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 525 transitions, 4565 flow [2023-12-09 15:22:01,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:22:01,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:22:01,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 792 transitions. [2023-12-09 15:22:01,201 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.9041095890410958 [2023-12-09 15:22:01,201 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 792 transitions. [2023-12-09 15:22:01,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 792 transitions. [2023-12-09 15:22:01,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:22:01,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 792 transitions. [2023-12-09 15:22:01,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:01,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 292.0) internal successors, (1168), 4 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:01,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 292.0) internal successors, (1168), 4 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:01,206 INFO L308 CegarLoopForPetriNet]: 263 programPoint places, 35 predicate places. [2023-12-09 15:22:01,206 INFO L500 AbstractCegarLoop]: Abstraction has has 298 places, 525 transitions, 4565 flow [2023-12-09 15:22:01,207 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:01,207 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:22:01,207 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:22:01,207 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:22:01,207 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:22:01,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:22:01,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1027601093, now seen corresponding path program 2 times [2023-12-09 15:22:01,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:22:01,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085607051] [2023-12-09 15:22:01,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:22:01,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:22:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:22:01,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-09 15:22:01,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:22:01,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085607051] [2023-12-09 15:22:01,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085607051] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:22:01,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:22:01,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 15:22:01,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407391174] [2023-12-09 15:22:01,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:22:01,276 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:22:01,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:22:01,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:22:01,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 15:22:01,277 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 292 [2023-12-09 15:22:01,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 525 transitions, 4565 flow. Second operand has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:01,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:22:01,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 292 [2023-12-09 15:22:01,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:22:01,955 INFO L124 PetriNetUnfolderBase]: 943/4142 cut-off events. [2023-12-09 15:22:01,955 INFO L125 PetriNetUnfolderBase]: For 19760/19816 co-relation queries the response was YES. [2023-12-09 15:22:01,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14593 conditions, 4142 events. 943/4142 cut-off events. For 19760/19816 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33303 event pairs, 147 based on Foata normal form. 0/3626 useless extension candidates. Maximal degree in co-relation 6731. Up to 1039 conditions per place. [2023-12-09 15:22:01,976 INFO L140 encePairwiseOnDemand]: 289/292 looper letters, 61 selfloop transitions, 7 changer transitions 271/587 dead transitions. [2023-12-09 15:22:01,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 587 transitions, 6114 flow [2023-12-09 15:22:01,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:22:01,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:22:01,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 792 transitions. [2023-12-09 15:22:01,978 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.9041095890410958 [2023-12-09 15:22:01,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 792 transitions. [2023-12-09 15:22:01,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 792 transitions. [2023-12-09 15:22:01,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:22:01,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 792 transitions. [2023-12-09 15:22:01,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:01,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 292.0) internal successors, (1168), 4 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:01,982 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 292.0) internal successors, (1168), 4 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:01,982 INFO L308 CegarLoopForPetriNet]: 263 programPoint places, 37 predicate places. [2023-12-09 15:22:01,982 INFO L500 AbstractCegarLoop]: Abstraction has has 300 places, 587 transitions, 6114 flow [2023-12-09 15:22:01,983 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:01,983 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:22:01,983 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:22:01,983 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 15:22:01,983 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:22:01,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:22:01,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1707504401, now seen corresponding path program 1 times [2023-12-09 15:22:01,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:22:01,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716036693] [2023-12-09 15:22:01,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:22:01,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:22:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:22:02,078 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-09 15:22:02,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:22:02,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716036693] [2023-12-09 15:22:02,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716036693] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:22:02,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501955243] [2023-12-09 15:22:02,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:22:02,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:22:02,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:22:02,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:22:02,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-09 15:22:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:22:02,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-09 15:22:02,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:22:02,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 8 [2023-12-09 15:22:02,403 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-09 15:22:02,403 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:22:02,450 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-09 15:22:02,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501955243] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:22:02,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:22:02,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2023-12-09 15:22:02,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440497365] [2023-12-09 15:22:02,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:22:02,452 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:22:02,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:22:02,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:22:02,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:22:02,453 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 292 [2023-12-09 15:22:02,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 587 transitions, 6114 flow. Second operand has 6 states, 6 states have (on average 246.33333333333334) internal successors, (1478), 6 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:02,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:22:02,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 292 [2023-12-09 15:22:02,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:22:05,295 INFO L124 PetriNetUnfolderBase]: 5513/16361 cut-off events. [2023-12-09 15:22:05,295 INFO L125 PetriNetUnfolderBase]: For 113555/114001 co-relation queries the response was YES. [2023-12-09 15:22:05,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62413 conditions, 16361 events. 5513/16361 cut-off events. For 113555/114001 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 163317 event pairs, 642 based on Foata normal form. 0/14829 useless extension candidates. Maximal degree in co-relation 25782. Up to 4128 conditions per place. [2023-12-09 15:22:05,422 INFO L140 encePairwiseOnDemand]: 285/292 looper letters, 174 selfloop transitions, 17 changer transitions 558/978 dead transitions. [2023-12-09 15:22:05,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 978 transitions, 14779 flow [2023-12-09 15:22:05,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:22:05,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 15:22:05,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1769 transitions. [2023-12-09 15:22:05,426 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8654598825831703 [2023-12-09 15:22:05,426 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1769 transitions. [2023-12-09 15:22:05,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1769 transitions. [2023-12-09 15:22:05,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:22:05,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1769 transitions. [2023-12-09 15:22:05,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 252.71428571428572) internal successors, (1769), 7 states have internal predecessors, (1769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:05,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 292.0) internal successors, (2336), 8 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:05,433 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 292.0) internal successors, (2336), 8 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:05,433 INFO L308 CegarLoopForPetriNet]: 263 programPoint places, 43 predicate places. [2023-12-09 15:22:05,433 INFO L500 AbstractCegarLoop]: Abstraction has has 306 places, 978 transitions, 14779 flow [2023-12-09 15:22:05,434 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 246.33333333333334) internal successors, (1478), 6 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:05,434 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:22:05,434 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:22:05,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-09 15:22:05,639 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:22:05,640 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:22:05,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:22:05,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1898368577, now seen corresponding path program 2 times [2023-12-09 15:22:05,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:22:05,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275157714] [2023-12-09 15:22:05,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:22:05,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:22:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:22:06,038 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-09 15:22:06,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:22:06,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275157714] [2023-12-09 15:22:06,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275157714] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:22:06,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133752015] [2023-12-09 15:22:06,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:22:06,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:22:06,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:22:06,043 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:22:06,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-09 15:22:06,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:22:06,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:22:06,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-09 15:22:06,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:22:06,462 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-09 15:22:06,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:22:06,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2023-12-09 15:22:06,822 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-09 15:22:06,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133752015] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:22:06,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:22:06,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 24 [2023-12-09 15:22:06,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593765325] [2023-12-09 15:22:06,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:22:06,823 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-09 15:22:06,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:22:06,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-09 15:22:06,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2023-12-09 15:22:06,826 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 292 [2023-12-09 15:22:06,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 978 transitions, 14779 flow. Second operand has 24 states, 24 states have (on average 173.70833333333334) internal successors, (4169), 24 states have internal predecessors, (4169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:06,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:22:06,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 292 [2023-12-09 15:22:06,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:22:15,560 INFO L124 PetriNetUnfolderBase]: 12669/35551 cut-off events. [2023-12-09 15:22:15,560 INFO L125 PetriNetUnfolderBase]: For 230359/233580 co-relation queries the response was YES. [2023-12-09 15:22:15,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160919 conditions, 35551 events. 12669/35551 cut-off events. For 230359/233580 co-relation queries the response was YES. Maximal size of possible extension queue 825. Compared 400089 event pairs, 1716 based on Foata normal form. 296/32761 useless extension candidates. Maximal degree in co-relation 53272. Up to 9800 conditions per place. [2023-12-09 15:22:15,824 INFO L140 encePairwiseOnDemand]: 246/292 looper letters, 307 selfloop transitions, 94 changer transitions 1547/2098 dead transitions. [2023-12-09 15:22:15,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 2098 transitions, 39198 flow [2023-12-09 15:22:15,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-12-09 15:22:15,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2023-12-09 15:22:15,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 11261 transitions. [2023-12-09 15:22:15,841 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5843192195931922 [2023-12-09 15:22:15,841 INFO L72 ComplementDD]: Start complementDD. Operand 66 states and 11261 transitions. [2023-12-09 15:22:15,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 11261 transitions. [2023-12-09 15:22:15,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:22:15,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 66 states and 11261 transitions. [2023-12-09 15:22:15,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 67 states, 66 states have (on average 170.62121212121212) internal successors, (11261), 66 states have internal predecessors, (11261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:15,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 67 states, 67 states have (on average 292.0) internal successors, (19564), 67 states have internal predecessors, (19564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:15,891 INFO L81 ComplementDD]: Finished complementDD. Result has 67 states, 67 states have (on average 292.0) internal successors, (19564), 67 states have internal predecessors, (19564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:15,893 INFO L308 CegarLoopForPetriNet]: 263 programPoint places, 108 predicate places. [2023-12-09 15:22:15,893 INFO L500 AbstractCegarLoop]: Abstraction has has 371 places, 2098 transitions, 39198 flow [2023-12-09 15:22:15,895 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 173.70833333333334) internal successors, (4169), 24 states have internal predecessors, (4169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:15,895 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:22:15,896 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:22:15,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-09 15:22:16,103 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-09 15:22:16,104 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:22:16,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:22:16,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1963487587, now seen corresponding path program 3 times [2023-12-09 15:22:16,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:22:16,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519927623] [2023-12-09 15:22:16,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:22:16,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:22:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:22:16,450 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-09 15:22:16,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:22:16,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519927623] [2023-12-09 15:22:16,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519927623] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:22:16,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170348193] [2023-12-09 15:22:16,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-09 15:22:16,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:22:16,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:22:16,452 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:22:16,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-09 15:22:16,617 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-09 15:22:16,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:22:16,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-09 15:22:16,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:22:16,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2023-12-09 15:22:16,979 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-09 15:22:16,979 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:22:17,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2023-12-09 15:22:17,645 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-09 15:22:17,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170348193] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:22:17,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:22:17,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2023-12-09 15:22:17,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373598545] [2023-12-09 15:22:17,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:22:17,647 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-09 15:22:17,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:22:17,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-09 15:22:17,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2023-12-09 15:22:17,651 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 292 [2023-12-09 15:22:17,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 2098 transitions, 39198 flow. Second operand has 25 states, 25 states have (on average 209.44) internal successors, (5236), 25 states have internal predecessors, (5236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:17,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:22:17,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 292 [2023-12-09 15:22:17,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:22:27,397 INFO L124 PetriNetUnfolderBase]: 11803/35760 cut-off events. [2023-12-09 15:22:27,397 INFO L125 PetriNetUnfolderBase]: For 324346/328688 co-relation queries the response was YES. [2023-12-09 15:22:27,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163241 conditions, 35760 events. 11803/35760 cut-off events. For 324346/328688 co-relation queries the response was YES. Maximal size of possible extension queue 819. Compared 418082 event pairs, 1309 based on Foata normal form. 1194/33726 useless extension candidates. Maximal degree in co-relation 56562. Up to 9079 conditions per place. [2023-12-09 15:22:27,630 INFO L140 encePairwiseOnDemand]: 270/292 looper letters, 162 selfloop transitions, 21 changer transitions 1860/2244 dead transitions. [2023-12-09 15:22:27,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 2244 transitions, 46441 flow [2023-12-09 15:22:27,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-09 15:22:27,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-12-09 15:22:27,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 5320 transitions. [2023-12-09 15:22:27,634 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7287671232876712 [2023-12-09 15:22:27,634 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 5320 transitions. [2023-12-09 15:22:27,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 5320 transitions. [2023-12-09 15:22:27,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:22:27,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 5320 transitions. [2023-12-09 15:22:27,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 212.8) internal successors, (5320), 25 states have internal predecessors, (5320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:27,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 292.0) internal successors, (7592), 26 states have internal predecessors, (7592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:27,646 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 292.0) internal successors, (7592), 26 states have internal predecessors, (7592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:27,647 INFO L308 CegarLoopForPetriNet]: 263 programPoint places, 132 predicate places. [2023-12-09 15:22:27,647 INFO L500 AbstractCegarLoop]: Abstraction has has 395 places, 2244 transitions, 46441 flow [2023-12-09 15:22:27,648 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 209.44) internal successors, (5236), 25 states have internal predecessors, (5236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:27,648 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:22:27,648 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:22:27,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-09 15:22:27,854 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:22:27,855 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:22:27,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:22:27,855 INFO L85 PathProgramCache]: Analyzing trace with hash 2146109286, now seen corresponding path program 4 times [2023-12-09 15:22:27,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:22:27,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637319662] [2023-12-09 15:22:27,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:22:27,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:22:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:22:28,283 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-09 15:22:28,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:22:28,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637319662] [2023-12-09 15:22:28,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637319662] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:22:28,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840792819] [2023-12-09 15:22:28,285 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-09 15:22:28,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:22:28,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:22:28,286 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:22:28,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-09 15:22:28,428 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-09 15:22:28,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:22:28,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-09 15:22:28,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:22:28,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-09 15:22:28,461 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-09 15:22:28,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-12-09 15:22:28,862 INFO L349 Elim1Store]: treesize reduction 29, result has 44.2 percent of original size [2023-12-09 15:22:28,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2023-12-09 15:22:28,974 INFO L349 Elim1Store]: treesize reduction 29, result has 44.2 percent of original size [2023-12-09 15:22:28,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2023-12-09 15:22:29,060 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-09 15:22:29,060 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:22:29,470 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-09 15:22:29,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 463 treesize of output 423 [2023-12-09 15:22:29,718 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-09 15:22:29,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840792819] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:22:29,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:22:29,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 10] total 31 [2023-12-09 15:22:29,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509017773] [2023-12-09 15:22:29,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:22:29,719 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-09 15:22:29,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:22:29,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-09 15:22:29,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=809, Unknown=0, NotChecked=0, Total=930 [2023-12-09 15:22:29,723 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 292 [2023-12-09 15:22:29,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 2244 transitions, 46441 flow. Second operand has 31 states, 31 states have (on average 201.1290322580645) internal successors, (6235), 31 states have internal predecessors, (6235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:29,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:22:29,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 292 [2023-12-09 15:22:29,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:22:47,286 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([962] L105-->L109: Formula: (and (= (+ v_~q2_front~0_31 1) v_~q2_front~0_30) (not (= (ite (and (< v_~q2_front~0_31 v_~n2~0_20) (< v_~q2_front~0_31 v_~q2_back~0_38) (<= 0 v_~q2_front~0_31)) 1 0) 0)) (= (select (select |v_#memory_int_101| v_~q2~0.base_29) (+ (* 4 v_~q2_front~0_31) v_~q2~0.offset_29)) |v_thread3Thread1of1ForFork2_~k~0#1_3|)) InVars {~n2~0=v_~n2~0_20, ~q2~0.offset=v_~q2~0.offset_29, #memory_int=|v_#memory_int_101|, ~q2_front~0=v_~q2_front~0_31, ~q2~0.base=v_~q2~0.base_29, ~q2_back~0=v_~q2_back~0_38} OutVars{thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1=|v_thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1_1|, ~n2~0=v_~n2~0_20, thread3Thread1of1ForFork2_#t~post15#1=|v_thread3Thread1of1ForFork2_#t~post15#1_1|, ~q2~0.offset=v_~q2~0.offset_29, thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1=|v_thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1_1|, #memory_int=|v_#memory_int_101|, ~q2_front~0=v_~q2_front~0_30, ~q2~0.base=v_~q2~0.base_29, thread3Thread1of1ForFork2_#t~mem14#1=|v_thread3Thread1of1ForFork2_#t~mem14#1_1|, ~q2_back~0=v_~q2_back~0_38, thread3Thread1of1ForFork2_~k~0#1=|v_thread3Thread1of1ForFork2_~k~0#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1, thread3Thread1of1ForFork2_#t~post15#1, thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1, ~q2_front~0, thread3Thread1of1ForFork2_#t~mem14#1, thread3Thread1of1ForFork2_~k~0#1][2625], [350#true, 6909#(and (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_main_~#t2~0#1.base|) (= (select |#valid| |ULTIMATE.start_main_~#t2~0#1.base|) 1) (not (= |ULTIMATE.start_create_fresh_int_array_#res#1.base| |ULTIMATE.start_main_~#t3~0#1.base|)) (not (= |ULTIMATE.start_main_~#t3~0#1.base| |ULTIMATE.start_main_~#t2~0#1.base|)) (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_main_~#t3~0#1.base|) (not (= ~q1~0.base |ULTIMATE.start_main_~#t3~0#1.base|)) (not (= ~q1~0.base |ULTIMATE.start_main_~#t2~0#1.base|)) (not (= |ULTIMATE.start_create_fresh_int_array_#res#1.base| |ULTIMATE.start_main_~#t2~0#1.base|)) (<= 1 |thread2Thread1of1ForFork1_~j~0#1|)), 283#true, 304#true, 134#L109true, 321#true, 119#L150-4true, thread2Thread1of1ForFork1InUse, thread1Thread1of1ForFork0InUse, thread3Thread1of1ForFork2InUse, 207#L82-2true, 280#true, 356#(< |thread1Thread1of1ForFork0_~i~0#1| ~N~0), 340#(= ~r~0 0), 222#L53true, 3615#true, 358#true, 287#true, 3559#(and (not (= |ULTIMATE.start_create_fresh_int_array_#res#1.base| |ULTIMATE.start_main_~#t3~0#1.base|)) (not (= ~q1~0.base |ULTIMATE.start_main_~#t3~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#t3~0#1.base|) 1))]) [2023-12-09 15:22:47,286 INFO L294 olderBase$Statistics]: this new event has 235 ancestors and is cut-off event [2023-12-09 15:22:47,286 INFO L297 olderBase$Statistics]: existing Event has 230 ancestors and is cut-off event [2023-12-09 15:22:47,286 INFO L297 olderBase$Statistics]: existing Event has 230 ancestors and is cut-off event [2023-12-09 15:22:47,286 INFO L297 olderBase$Statistics]: existing Event has 235 ancestors and is cut-off event [2023-12-09 15:22:48,225 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([962] L105-->L109: Formula: (and (= (+ v_~q2_front~0_31 1) v_~q2_front~0_30) (not (= (ite (and (< v_~q2_front~0_31 v_~n2~0_20) (< v_~q2_front~0_31 v_~q2_back~0_38) (<= 0 v_~q2_front~0_31)) 1 0) 0)) (= (select (select |v_#memory_int_101| v_~q2~0.base_29) (+ (* 4 v_~q2_front~0_31) v_~q2~0.offset_29)) |v_thread3Thread1of1ForFork2_~k~0#1_3|)) InVars {~n2~0=v_~n2~0_20, ~q2~0.offset=v_~q2~0.offset_29, #memory_int=|v_#memory_int_101|, ~q2_front~0=v_~q2_front~0_31, ~q2~0.base=v_~q2~0.base_29, ~q2_back~0=v_~q2_back~0_38} OutVars{thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1=|v_thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1_1|, ~n2~0=v_~n2~0_20, thread3Thread1of1ForFork2_#t~post15#1=|v_thread3Thread1of1ForFork2_#t~post15#1_1|, ~q2~0.offset=v_~q2~0.offset_29, thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1=|v_thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1_1|, #memory_int=|v_#memory_int_101|, ~q2_front~0=v_~q2_front~0_30, ~q2~0.base=v_~q2~0.base_29, thread3Thread1of1ForFork2_#t~mem14#1=|v_thread3Thread1of1ForFork2_#t~mem14#1_1|, ~q2_back~0=v_~q2_back~0_38, thread3Thread1of1ForFork2_~k~0#1=|v_thread3Thread1of1ForFork2_~k~0#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1, thread3Thread1of1ForFork2_#t~post15#1, thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1, ~q2_front~0, thread3Thread1of1ForFork2_#t~mem14#1, thread3Thread1of1ForFork2_~k~0#1][2625], [350#true, 6909#(and (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_main_~#t2~0#1.base|) (= (select |#valid| |ULTIMATE.start_main_~#t2~0#1.base|) 1) (not (= |ULTIMATE.start_create_fresh_int_array_#res#1.base| |ULTIMATE.start_main_~#t3~0#1.base|)) (not (= |ULTIMATE.start_main_~#t3~0#1.base| |ULTIMATE.start_main_~#t2~0#1.base|)) (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_main_~#t3~0#1.base|) (not (= ~q1~0.base |ULTIMATE.start_main_~#t3~0#1.base|)) (not (= ~q1~0.base |ULTIMATE.start_main_~#t2~0#1.base|)) (not (= |ULTIMATE.start_create_fresh_int_array_#res#1.base| |ULTIMATE.start_main_~#t2~0#1.base|)) (<= 1 |thread2Thread1of1ForFork1_~j~0#1|)), 283#true, 304#true, 134#L109true, 321#true, 177#L151-1true, thread2Thread1of1ForFork1InUse, thread1Thread1of1ForFork0InUse, thread3Thread1of1ForFork2InUse, 207#L82-2true, 356#(< |thread1Thread1of1ForFork0_~i~0#1| ~N~0), 280#true, 340#(= ~r~0 0), 3615#true, 222#L53true, 3559#(and (not (= |ULTIMATE.start_create_fresh_int_array_#res#1.base| |ULTIMATE.start_main_~#t3~0#1.base|)) (not (= ~q1~0.base |ULTIMATE.start_main_~#t3~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#t3~0#1.base|) 1)), 287#true, 358#true]) [2023-12-09 15:22:48,226 INFO L294 olderBase$Statistics]: this new event has 238 ancestors and is cut-off event [2023-12-09 15:22:48,226 INFO L297 olderBase$Statistics]: existing Event has 238 ancestors and is cut-off event [2023-12-09 15:22:48,226 INFO L297 olderBase$Statistics]: existing Event has 233 ancestors and is cut-off event [2023-12-09 15:22:48,226 INFO L297 olderBase$Statistics]: existing Event has 233 ancestors and is cut-off event [2023-12-09 15:22:52,409 INFO L124 PetriNetUnfolderBase]: 30272/72638 cut-off events. [2023-12-09 15:22:52,409 INFO L125 PetriNetUnfolderBase]: For 666288/692162 co-relation queries the response was YES. [2023-12-09 15:22:52,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357878 conditions, 72638 events. 30272/72638 cut-off events. For 666288/692162 co-relation queries the response was YES. Maximal size of possible extension queue 1459. Compared 847440 event pairs, 3095 based on Foata normal form. 979/67825 useless extension candidates. Maximal degree in co-relation 109493. Up to 17590 conditions per place. [2023-12-09 15:22:53,045 INFO L140 encePairwiseOnDemand]: 259/292 looper letters, 0 selfloop transitions, 0 changer transitions 3354/3354 dead transitions. [2023-12-09 15:22:53,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 3354 transitions, 74279 flow [2023-12-09 15:22:53,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-09 15:22:53,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2023-12-09 15:22:53,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 7902 transitions. [2023-12-09 15:22:53,051 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6938883034773445 [2023-12-09 15:22:53,051 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 7902 transitions. [2023-12-09 15:22:53,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 7902 transitions. [2023-12-09 15:22:53,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:22:53,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 7902 transitions. [2023-12-09 15:22:53,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 202.6153846153846) internal successors, (7902), 39 states have internal predecessors, (7902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:53,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 292.0) internal successors, (11680), 40 states have internal predecessors, (11680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:53,067 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 292.0) internal successors, (11680), 40 states have internal predecessors, (11680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:53,067 INFO L308 CegarLoopForPetriNet]: 263 programPoint places, 165 predicate places. [2023-12-09 15:22:53,067 INFO L500 AbstractCegarLoop]: Abstraction has has 428 places, 3354 transitions, 74279 flow [2023-12-09 15:22:53,069 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 201.1290322580645) internal successors, (6235), 31 states have internal predecessors, (6235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:22:53,076 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/popl20-bad-ring-nondet.wvr.c_BEv2_AllErrorsAtOnce [2023-12-09 15:22:53,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-09 15:22:53,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-12-09 15:22:53,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-12-09 15:22:53,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-12-09 15:22:53,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-09 15:22:53,420 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:22:53,422 INFO L457 BasicCegarLoop]: Path program histogram: [4, 2, 2, 1, 1, 1, 1] [2023-12-09 15:22:53,424 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:22:53,425 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:22:53,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:22:53 BasicIcfg [2023-12-09 15:22:53,431 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:22:53,432 INFO L158 Benchmark]: Toolchain (without parser) took 57620.97ms. Allocated memory was 207.6MB in the beginning and 4.2GB in the end (delta: 4.0GB). Free memory was 155.3MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2023-12-09 15:22:53,432 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 207.6MB. Free memory is still 159.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:22:53,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.47ms. Allocated memory is still 207.6MB. Free memory was 155.3MB in the beginning and 142.4MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-09 15:22:53,432 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.21ms. Allocated memory is still 207.6MB. Free memory was 142.0MB in the beginning and 139.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:22:53,433 INFO L158 Benchmark]: Boogie Preprocessor took 33.83ms. Allocated memory is still 207.6MB. Free memory was 139.5MB in the beginning and 137.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:22:53,433 INFO L158 Benchmark]: RCFGBuilder took 638.82ms. Allocated memory was 207.6MB in the beginning and 249.6MB in the end (delta: 41.9MB). Free memory was 137.2MB in the beginning and 196.3MB in the end (delta: -59.1MB). Peak memory consumption was 30.0MB. Max. memory is 8.0GB. [2023-12-09 15:22:53,433 INFO L158 Benchmark]: TraceAbstraction took 56690.51ms. Allocated memory was 249.6MB in the beginning and 4.2GB in the end (delta: 3.9GB). Free memory was 195.8MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2023-12-09 15:22:53,435 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 207.6MB. Free memory is still 159.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 216.47ms. Allocated memory is still 207.6MB. Free memory was 155.3MB in the beginning and 142.4MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.21ms. Allocated memory is still 207.6MB. Free memory was 142.0MB in the beginning and 139.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.83ms. Allocated memory is still 207.6MB. Free memory was 139.5MB in the beginning and 137.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 638.82ms. Allocated memory was 207.6MB in the beginning and 249.6MB in the end (delta: 41.9MB). Free memory was 137.2MB in the beginning and 196.3MB in the end (delta: -59.1MB). Peak memory consumption was 30.0MB. Max. memory is 8.0GB. * TraceAbstraction took 56690.51ms. Allocated memory was 249.6MB in the beginning and 4.2GB in the end (delta: 3.9GB). Free memory was 195.8MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 156]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 318 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 56.6s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 48.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1921 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1921 mSDsluCounter, 2408 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2049 mSDsCounter, 159 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5062 IncrementalHoareTripleChecker+Invalid, 5221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 159 mSolverCounterUnsat, 359 mSDtfsCounter, 5062 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2296 GetRequests, 2061 SyntacticMatches, 2 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3457 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74279occurred in iteration=12, InterpolantAutomatonStates: 182, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 3868 NumberOfCodeBlocks, 3820 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4892 ConstructedInterpolants, 13 QuantifiedInterpolants, 15340 SizeOfPredicates, 47 NumberOfNonLiveVariables, 2157 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 20 InterpolantComputations, 8 PerfectInterpolantSequences, 187/233 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! [2023-12-09 15:22:53,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...