/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/parallel-parallel-sum-1-dsl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:18:26,925 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:18:26,998 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 15:18:27,023 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:18:27,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:18:27,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:18:27,025 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:18:27,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:18:27,025 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:18:27,028 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:18:27,029 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:18:27,029 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:18:27,029 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:18:27,030 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:18:27,030 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:18:27,030 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:18:27,030 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:18:27,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:18:27,031 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:18:27,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:18:27,031 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:18:27,032 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:18:27,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:18:27,032 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:18:27,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:18:27,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:18:27,033 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:18:27,033 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:18:27,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:18:27,033 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:18:27,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:18:27,034 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:18:27,034 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:18:27,034 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:18:27,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:18:27,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:18:27,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:18:27,233 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:18:27,234 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:18:27,235 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2023-12-09 15:18:28,358 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:18:28,547 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:18:28,547 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2023-12-09 15:18:28,555 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d743cdd88/de52838b3b4146b3bba22f2376e59dc9/FLAG98633fd44 [2023-12-09 15:18:28,568 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d743cdd88/de52838b3b4146b3bba22f2376e59dc9 [2023-12-09 15:18:28,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:18:28,571 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:18:28,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:18:28,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:18:28,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:18:28,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:18:28" (1/1) ... [2023-12-09 15:18:28,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1385b6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:28, skipping insertion in model container [2023-12-09 15:18:28,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:18:28" (1/1) ... [2023-12-09 15:18:28,605 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:18:28,733 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/parallel-parallel-sum-1-dsl.wvr.c[4450,4463] [2023-12-09 15:18:28,740 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:18:28,746 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:18:28,775 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/parallel-parallel-sum-1-dsl.wvr.c[4450,4463] [2023-12-09 15:18:28,778 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:18:28,783 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:18:28,783 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:18:28,788 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:18:28,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:28 WrapperNode [2023-12-09 15:18:28,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:18:28,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:18:28,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:18:28,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:18:28,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:28" (1/1) ... [2023-12-09 15:18:28,799 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:28" (1/1) ... [2023-12-09 15:18:28,821 INFO L138 Inliner]: procedures = 29, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 307 [2023-12-09 15:18:28,822 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:18:28,822 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:18:28,822 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:18:28,822 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:18:28,830 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:28" (1/1) ... [2023-12-09 15:18:28,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:28" (1/1) ... [2023-12-09 15:18:28,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:28" (1/1) ... [2023-12-09 15:18:28,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:28" (1/1) ... [2023-12-09 15:18:28,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:28" (1/1) ... [2023-12-09 15:18:28,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:28" (1/1) ... [2023-12-09 15:18:28,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:28" (1/1) ... [2023-12-09 15:18:28,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:28" (1/1) ... [2023-12-09 15:18:28,848 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:18:28,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:18:28,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:18:28,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:18:28,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:28" (1/1) ... [2023-12-09 15:18:28,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:18:28,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:18:28,876 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 15:18:28,890 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 15:18:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:18:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:18:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:18:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:18:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:18:28,895 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:18:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:18:28,895 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:18:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:18:28,896 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:18:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-12-09 15:18:28,896 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-12-09 15:18:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:18:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-12-09 15:18:28,896 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-12-09 15:18:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-12-09 15:18:28,896 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-12-09 15:18:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 15:18:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 15:18:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-09 15:18:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:18:28,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:18:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:18:28,898 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 15:18:28,994 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:18:28,996 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:18:29,394 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:18:29,548 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:18:29,548 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-12-09 15:18:29,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:18:29 BoogieIcfgContainer [2023-12-09 15:18:29,550 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:18:29,552 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:18:29,552 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:18:29,555 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:18:29,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:18:28" (1/3) ... [2023-12-09 15:18:29,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51888aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:18:29, skipping insertion in model container [2023-12-09 15:18:29,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:28" (2/3) ... [2023-12-09 15:18:29,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51888aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:18:29, skipping insertion in model container [2023-12-09 15:18:29,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:18:29" (3/3) ... [2023-12-09 15:18:29,563 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2023-12-09 15:18:29,575 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:18:29,575 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:18:29,575 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:18:29,670 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-12-09 15:18:29,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 278 places, 277 transitions, 620 flow [2023-12-09 15:18:29,813 INFO L124 PetriNetUnfolderBase]: 18/249 cut-off events. [2023-12-09 15:18:29,813 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-12-09 15:18:29,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 249 events. 18/249 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 322 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 215. Up to 3 conditions per place. [2023-12-09 15:18:29,821 INFO L82 GeneralOperation]: Start removeDead. Operand has 278 places, 277 transitions, 620 flow [2023-12-09 15:18:29,829 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 241 places, 240 transitions, 528 flow [2023-12-09 15:18:29,841 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:18:29,847 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;@a88c9f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:18:29,847 INFO L363 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-12-09 15:18:29,897 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:18:29,897 INFO L124 PetriNetUnfolderBase]: 18/239 cut-off events. [2023-12-09 15:18:29,897 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-12-09 15:18:29,897 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:29,899 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] [2023-12-09 15:18:29,899 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-09 15:18:29,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:29,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1019565701, now seen corresponding path program 1 times [2023-12-09 15:18:29,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:29,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884396435] [2023-12-09 15:18:29,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:29,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:30,234 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 15:18:30,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:30,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884396435] [2023-12-09 15:18:30,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884396435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:30,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:30,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-09 15:18:30,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920028616] [2023-12-09 15:18:30,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:30,243 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-09 15:18:30,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:30,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-09 15:18:30,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-09 15:18:30,273 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 281 [2023-12-09 15:18:30,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 240 transitions, 528 flow. Second operand has 2 states, 2 states have (on average 244.0) internal successors, (488), 2 states have internal predecessors, (488), 0 states have call successors, (0), 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 15:18:30,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:30,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 281 [2023-12-09 15:18:30,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:31,292 INFO L124 PetriNetUnfolderBase]: 2881/6511 cut-off events. [2023-12-09 15:18:31,292 INFO L125 PetriNetUnfolderBase]: For 1212/1212 co-relation queries the response was YES. [2023-12-09 15:18:31,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11327 conditions, 6511 events. 2881/6511 cut-off events. For 1212/1212 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 51328 event pairs, 1500 based on Foata normal form. 1085/6617 useless extension candidates. Maximal degree in co-relation 10886. Up to 3645 conditions per place. [2023-12-09 15:18:31,353 INFO L140 encePairwiseOnDemand]: 272/281 looper letters, 30 selfloop transitions, 0 changer transitions 4/231 dead transitions. [2023-12-09 15:18:31,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 231 transitions, 570 flow [2023-12-09 15:18:31,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-09 15:18:31,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-12-09 15:18:31,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 505 transitions. [2023-12-09 15:18:31,366 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8985765124555161 [2023-12-09 15:18:31,367 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 505 transitions. [2023-12-09 15:18:31,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 505 transitions. [2023-12-09 15:18:31,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:31,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 505 transitions. [2023-12-09 15:18:31,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 252.5) internal successors, (505), 2 states have internal predecessors, (505), 0 states have call successors, (0), 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 15:18:31,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 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 15:18:31,379 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 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 15:18:31,381 INFO L308 CegarLoopForPetriNet]: 241 programPoint places, 1 predicate places. [2023-12-09 15:18:31,381 INFO L500 AbstractCegarLoop]: Abstraction has has 242 places, 231 transitions, 570 flow [2023-12-09 15:18:31,382 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 244.0) internal successors, (488), 2 states have internal predecessors, (488), 0 states have call successors, (0), 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 15:18:31,382 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:31,382 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] [2023-12-09 15:18:31,382 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:18:31,383 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-09 15:18:31,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:31,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1388838828, now seen corresponding path program 1 times [2023-12-09 15:18:31,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:31,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985678482] [2023-12-09 15:18:31,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:31,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:31,857 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 15:18:31,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:31,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985678482] [2023-12-09 15:18:31,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985678482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:31,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:31,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:18:31,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737842023] [2023-12-09 15:18:31,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:31,861 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:18:31,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:31,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:18:31,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:18:31,864 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 281 [2023-12-09 15:18:31,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 231 transitions, 570 flow. Second operand has 6 states, 6 states have (on average 208.66666666666666) internal successors, (1252), 6 states have internal predecessors, (1252), 0 states have call successors, (0), 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 15:18:31,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:31,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 281 [2023-12-09 15:18:31,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:33,396 INFO L124 PetriNetUnfolderBase]: 5040/10834 cut-off events. [2023-12-09 15:18:33,396 INFO L125 PetriNetUnfolderBase]: For 4808/5272 co-relation queries the response was YES. [2023-12-09 15:18:33,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26165 conditions, 10834 events. 5040/10834 cut-off events. For 4808/5272 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 91270 event pairs, 1686 based on Foata normal form. 0/9697 useless extension candidates. Maximal degree in co-relation 25563. Up to 6476 conditions per place. [2023-12-09 15:18:33,484 INFO L140 encePairwiseOnDemand]: 266/281 looper letters, 105 selfloop transitions, 10 changer transitions 10/294 dead transitions. [2023-12-09 15:18:33,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 294 transitions, 1131 flow [2023-12-09 15:18:33,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:18:33,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:18:33,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1734 transitions. [2023-12-09 15:18:33,488 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7713523131672598 [2023-12-09 15:18:33,488 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1734 transitions. [2023-12-09 15:18:33,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1734 transitions. [2023-12-09 15:18:33,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:33,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1734 transitions. [2023-12-09 15:18:33,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 216.75) internal successors, (1734), 8 states have internal predecessors, (1734), 0 states have call successors, (0), 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 15:18:33,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 281.0) internal successors, (2529), 9 states have internal predecessors, (2529), 0 states have call successors, (0), 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 15:18:33,497 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 281.0) internal successors, (2529), 9 states have internal predecessors, (2529), 0 states have call successors, (0), 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 15:18:33,498 INFO L308 CegarLoopForPetriNet]: 241 programPoint places, 8 predicate places. [2023-12-09 15:18:33,498 INFO L500 AbstractCegarLoop]: Abstraction has has 249 places, 294 transitions, 1131 flow [2023-12-09 15:18:33,498 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 208.66666666666666) internal successors, (1252), 6 states have internal predecessors, (1252), 0 states have call successors, (0), 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 15:18:33,498 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:33,499 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] [2023-12-09 15:18:33,499 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:18:33,499 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-09 15:18:33,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:33,499 INFO L85 PathProgramCache]: Analyzing trace with hash -462947686, now seen corresponding path program 2 times [2023-12-09 15:18:33,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:33,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238232773] [2023-12-09 15:18:33,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:33,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:33,681 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 15:18:33,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:33,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238232773] [2023-12-09 15:18:33,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238232773] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:33,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:33,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:18:33,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849766392] [2023-12-09 15:18:33,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:33,690 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:18:33,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:33,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:18:33,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:18:33,692 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 281 [2023-12-09 15:18:33,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 294 transitions, 1131 flow. Second operand has 6 states, 6 states have (on average 208.66666666666666) internal successors, (1252), 6 states have internal predecessors, (1252), 0 states have call successors, (0), 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 15:18:33,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:33,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 281 [2023-12-09 15:18:33,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:35,793 INFO L124 PetriNetUnfolderBase]: 7282/15355 cut-off events. [2023-12-09 15:18:35,794 INFO L125 PetriNetUnfolderBase]: For 11727/12739 co-relation queries the response was YES. [2023-12-09 15:18:35,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47129 conditions, 15355 events. 7282/15355 cut-off events. For 11727/12739 co-relation queries the response was YES. Maximal size of possible extension queue 617. Compared 135892 event pairs, 1592 based on Foata normal form. 18/13883 useless extension candidates. Maximal degree in co-relation 46066. Up to 9397 conditions per place. [2023-12-09 15:18:35,951 INFO L140 encePairwiseOnDemand]: 265/281 looper letters, 157 selfloop transitions, 14 changer transitions 16/356 dead transitions. [2023-12-09 15:18:35,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 356 transitions, 1933 flow [2023-12-09 15:18:35,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:18:35,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:18:35,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1735 transitions. [2023-12-09 15:18:35,955 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.771797153024911 [2023-12-09 15:18:35,955 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1735 transitions. [2023-12-09 15:18:35,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1735 transitions. [2023-12-09 15:18:35,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:35,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1735 transitions. [2023-12-09 15:18:35,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 216.875) internal successors, (1735), 8 states have internal predecessors, (1735), 0 states have call successors, (0), 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 15:18:35,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 281.0) internal successors, (2529), 9 states have internal predecessors, (2529), 0 states have call successors, (0), 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 15:18:35,962 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 281.0) internal successors, (2529), 9 states have internal predecessors, (2529), 0 states have call successors, (0), 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 15:18:35,963 INFO L308 CegarLoopForPetriNet]: 241 programPoint places, 15 predicate places. [2023-12-09 15:18:35,963 INFO L500 AbstractCegarLoop]: Abstraction has has 256 places, 356 transitions, 1933 flow [2023-12-09 15:18:35,964 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 208.66666666666666) internal successors, (1252), 6 states have internal predecessors, (1252), 0 states have call successors, (0), 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 15:18:35,964 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:35,964 INFO L233 CegarLoopForPetriNet]: trace histogram [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] [2023-12-09 15:18:35,964 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:18:35,965 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-09 15:18:35,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:35,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1321984953, now seen corresponding path program 1 times [2023-12-09 15:18:35,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:35,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005854639] [2023-12-09 15:18:35,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:35,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:36,038 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:36,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:36,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005854639] [2023-12-09 15:18:36,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005854639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:36,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:36,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 15:18:36,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144237287] [2023-12-09 15:18:36,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:36,040 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:18:36,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:36,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:18:36,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 15:18:36,041 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 281 [2023-12-09 15:18:36,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 356 transitions, 1933 flow. Second operand has 3 states, 3 states have (on average 235.66666666666666) internal successors, (707), 3 states have internal predecessors, (707), 0 states have call successors, (0), 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 15:18:36,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:36,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 281 [2023-12-09 15:18:36,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:37,890 INFO L124 PetriNetUnfolderBase]: 6853/14694 cut-off events. [2023-12-09 15:18:37,891 INFO L125 PetriNetUnfolderBase]: For 15792/17066 co-relation queries the response was YES. [2023-12-09 15:18:37,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54155 conditions, 14694 events. 6853/14694 cut-off events. For 15792/17066 co-relation queries the response was YES. Maximal size of possible extension queue 620. Compared 130237 event pairs, 695 based on Foata normal form. 429/13803 useless extension candidates. Maximal degree in co-relation 52988. Up to 8968 conditions per place. [2023-12-09 15:18:38,065 INFO L140 encePairwiseOnDemand]: 277/281 looper letters, 214 selfloop transitions, 10 changer transitions 16/443 dead transitions. [2023-12-09 15:18:38,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 443 transitions, 3186 flow [2023-12-09 15:18:38,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:18:38,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:18:38,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 738 transitions. [2023-12-09 15:18:38,067 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8754448398576512 [2023-12-09 15:18:38,067 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 738 transitions. [2023-12-09 15:18:38,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 738 transitions. [2023-12-09 15:18:38,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:38,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 738 transitions. [2023-12-09 15:18:38,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 0 states have call successors, (0), 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 15:18:38,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 0 states have call successors, (0), 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 15:18:38,070 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 0 states have call successors, (0), 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 15:18:38,072 INFO L308 CegarLoopForPetriNet]: 241 programPoint places, 17 predicate places. [2023-12-09 15:18:38,072 INFO L500 AbstractCegarLoop]: Abstraction has has 258 places, 443 transitions, 3186 flow [2023-12-09 15:18:38,073 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 235.66666666666666) internal successors, (707), 3 states have internal predecessors, (707), 0 states have call successors, (0), 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 15:18:38,073 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:38,073 INFO L233 CegarLoopForPetriNet]: trace histogram [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] [2023-12-09 15:18:38,074 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:18:38,074 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-09 15:18:38,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:38,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1346175383, now seen corresponding path program 1 times [2023-12-09 15:18:38,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:38,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511641587] [2023-12-09 15:18:38,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:38,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:38,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:38,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:38,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511641587] [2023-12-09 15:18:38,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511641587] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:38,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:38,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:18:38,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949483665] [2023-12-09 15:18:38,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:38,261 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:18:38,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:38,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:18:38,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:18:38,263 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 281 [2023-12-09 15:18:38,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 443 transitions, 3186 flow. Second operand has 7 states, 7 states have (on average 218.14285714285714) internal successors, (1527), 7 states have internal predecessors, (1527), 0 states have call successors, (0), 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 15:18:38,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:38,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 281 [2023-12-09 15:18:38,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:41,287 INFO L124 PetriNetUnfolderBase]: 8684/19621 cut-off events. [2023-12-09 15:18:41,287 INFO L125 PetriNetUnfolderBase]: For 30543/32649 co-relation queries the response was YES. [2023-12-09 15:18:41,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82081 conditions, 19621 events. 8684/19621 cut-off events. For 30543/32649 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 187262 event pairs, 822 based on Foata normal form. 185/18045 useless extension candidates. Maximal degree in co-relation 61899. Up to 11492 conditions per place. [2023-12-09 15:18:41,592 INFO L140 encePairwiseOnDemand]: 270/281 looper letters, 363 selfloop transitions, 12 changer transitions 28/592 dead transitions. [2023-12-09 15:18:41,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 592 transitions, 5618 flow [2023-12-09 15:18:41,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 15:18:41,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 15:18:41,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2230 transitions. [2023-12-09 15:18:41,596 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7935943060498221 [2023-12-09 15:18:41,596 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2230 transitions. [2023-12-09 15:18:41,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2230 transitions. [2023-12-09 15:18:41,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:41,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2230 transitions. [2023-12-09 15:18:41,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 223.0) internal successors, (2230), 10 states have internal predecessors, (2230), 0 states have call successors, (0), 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 15:18:41,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 281.0) internal successors, (3091), 11 states have internal predecessors, (3091), 0 states have call successors, (0), 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 15:18:41,604 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 281.0) internal successors, (3091), 11 states have internal predecessors, (3091), 0 states have call successors, (0), 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 15:18:41,606 INFO L308 CegarLoopForPetriNet]: 241 programPoint places, 26 predicate places. [2023-12-09 15:18:41,606 INFO L500 AbstractCegarLoop]: Abstraction has has 267 places, 592 transitions, 5618 flow [2023-12-09 15:18:41,607 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 218.14285714285714) internal successors, (1527), 7 states have internal predecessors, (1527), 0 states have call successors, (0), 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 15:18:41,607 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:41,610 INFO L233 CegarLoopForPetriNet]: trace histogram [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] [2023-12-09 15:18:41,610 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:18:41,611 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-09 15:18:41,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:41,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1605156305, now seen corresponding path program 1 times [2023-12-09 15:18:41,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:41,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873426515] [2023-12-09 15:18:41,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:41,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:41,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:41,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:41,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873426515] [2023-12-09 15:18:41,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873426515] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:41,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:41,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 15:18:41,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90773732] [2023-12-09 15:18:41,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:41,680 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:18:41,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:41,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:18:41,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 15:18:41,681 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 281 [2023-12-09 15:18:41,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 592 transitions, 5618 flow. Second operand has 3 states, 3 states have (on average 235.66666666666666) internal successors, (707), 3 states have internal predecessors, (707), 0 states have call successors, (0), 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 15:18:41,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:41,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 281 [2023-12-09 15:18:41,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:44,481 INFO L124 PetriNetUnfolderBase]: 8102/18643 cut-off events. [2023-12-09 15:18:44,481 INFO L125 PetriNetUnfolderBase]: For 37161/40315 co-relation queries the response was YES. [2023-12-09 15:18:44,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89109 conditions, 18643 events. 8102/18643 cut-off events. For 37161/40315 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 178511 event pairs, 445 based on Foata normal form. 593/17618 useless extension candidates. Maximal degree in co-relation 66094. Up to 10910 conditions per place. [2023-12-09 15:18:44,720 INFO L140 encePairwiseOnDemand]: 277/281 looper letters, 520 selfloop transitions, 36 changer transitions 43/810 dead transitions. [2023-12-09 15:18:44,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 810 transitions, 9644 flow [2023-12-09 15:18:44,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:18:44,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:18:44,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 738 transitions. [2023-12-09 15:18:44,725 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8754448398576512 [2023-12-09 15:18:44,725 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 738 transitions. [2023-12-09 15:18:44,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 738 transitions. [2023-12-09 15:18:44,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:44,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 738 transitions. [2023-12-09 15:18:44,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 0 states have call successors, (0), 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 15:18:44,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 0 states have call successors, (0), 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 15:18:44,729 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 0 states have call successors, (0), 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 15:18:44,730 INFO L308 CegarLoopForPetriNet]: 241 programPoint places, 28 predicate places. [2023-12-09 15:18:44,731 INFO L500 AbstractCegarLoop]: Abstraction has has 269 places, 810 transitions, 9644 flow [2023-12-09 15:18:44,731 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 235.66666666666666) internal successors, (707), 3 states have internal predecessors, (707), 0 states have call successors, (0), 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 15:18:44,731 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:44,731 INFO L233 CegarLoopForPetriNet]: trace histogram [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] [2023-12-09 15:18:44,731 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:18:44,731 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-09 15:18:44,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:44,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1383712012, now seen corresponding path program 1 times [2023-12-09 15:18:44,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:44,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420583407] [2023-12-09 15:18:44,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:44,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:44,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:44,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420583407] [2023-12-09 15:18:44,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420583407] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:44,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:44,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:18:44,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847547429] [2023-12-09 15:18:44,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:44,886 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:18:44,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:44,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:18:44,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:18:44,888 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 281 [2023-12-09 15:18:44,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 810 transitions, 9644 flow. Second operand has 7 states, 7 states have (on average 218.14285714285714) internal successors, (1527), 7 states have internal predecessors, (1527), 0 states have call successors, (0), 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 15:18:44,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:44,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 281 [2023-12-09 15:18:44,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:47,596 INFO L124 PetriNetUnfolderBase]: 6891/15947 cut-off events. [2023-12-09 15:18:47,596 INFO L125 PetriNetUnfolderBase]: For 41284/44918 co-relation queries the response was YES. [2023-12-09 15:18:47,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85028 conditions, 15947 events. 6891/15947 cut-off events. For 41284/44918 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 149351 event pairs, 399 based on Foata normal form. 85/14625 useless extension candidates. Maximal degree in co-relation 74494. Up to 9261 conditions per place. [2023-12-09 15:18:47,755 INFO L140 encePairwiseOnDemand]: 270/281 looper letters, 376 selfloop transitions, 6 changer transitions 147/718 dead transitions. [2023-12-09 15:18:47,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 718 transitions, 9305 flow [2023-12-09 15:18:47,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 15:18:47,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 15:18:47,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2222 transitions. [2023-12-09 15:18:47,759 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7907473309608541 [2023-12-09 15:18:47,759 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2222 transitions. [2023-12-09 15:18:47,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2222 transitions. [2023-12-09 15:18:47,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:47,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2222 transitions. [2023-12-09 15:18:47,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 222.2) internal successors, (2222), 10 states have internal predecessors, (2222), 0 states have call successors, (0), 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 15:18:47,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 281.0) internal successors, (3091), 11 states have internal predecessors, (3091), 0 states have call successors, (0), 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 15:18:47,767 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 281.0) internal successors, (3091), 11 states have internal predecessors, (3091), 0 states have call successors, (0), 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 15:18:47,768 INFO L308 CegarLoopForPetriNet]: 241 programPoint places, 37 predicate places. [2023-12-09 15:18:47,768 INFO L500 AbstractCegarLoop]: Abstraction has has 278 places, 718 transitions, 9305 flow [2023-12-09 15:18:47,768 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 218.14285714285714) internal successors, (1527), 7 states have internal predecessors, (1527), 0 states have call successors, (0), 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 15:18:47,768 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:47,768 INFO L233 CegarLoopForPetriNet]: trace histogram [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] [2023-12-09 15:18:47,768 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:18:47,769 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-09 15:18:47,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:47,769 INFO L85 PathProgramCache]: Analyzing trace with hash -927397996, now seen corresponding path program 1 times [2023-12-09 15:18:47,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:47,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659474976] [2023-12-09 15:18:47,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:47,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:47,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:47,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:47,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659474976] [2023-12-09 15:18:47,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659474976] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:18:47,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14743518] [2023-12-09 15:18:47,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:47,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:18:47,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:18:47,947 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 15:18:47,950 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 15:18:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:48,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-09 15:18:48,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:18:48,423 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:48,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:18:48,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:48,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14743518] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:18:48,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:18:48,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-12-09 15:18:48,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270247964] [2023-12-09 15:18:48,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:18:48,596 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:18:48,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:48,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:18:48,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:18:48,599 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 281 [2023-12-09 15:18:48,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 718 transitions, 9305 flow. Second operand has 19 states, 19 states have (on average 215.73684210526315) internal successors, (4099), 19 states have internal predecessors, (4099), 0 states have call successors, (0), 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 15:18:48,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:48,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 281 [2023-12-09 15:18:48,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:52,244 INFO L124 PetriNetUnfolderBase]: 8581/20455 cut-off events. [2023-12-09 15:18:52,245 INFO L125 PetriNetUnfolderBase]: For 67938/73766 co-relation queries the response was YES. [2023-12-09 15:18:52,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119298 conditions, 20455 events. 8581/20455 cut-off events. For 67938/73766 co-relation queries the response was YES. Maximal size of possible extension queue 738. Compared 201331 event pairs, 449 based on Foata normal form. 284/18979 useless extension candidates. Maximal degree in co-relation 84393. Up to 11644 conditions per place. [2023-12-09 15:18:52,488 INFO L140 encePairwiseOnDemand]: 262/281 looper letters, 542 selfloop transitions, 42 changer transitions 174/946 dead transitions. [2023-12-09 15:18:52,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 946 transitions, 14671 flow [2023-12-09 15:18:52,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:18:52,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:18:52,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3519 transitions. [2023-12-09 15:18:52,493 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7826957295373665 [2023-12-09 15:18:52,494 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3519 transitions. [2023-12-09 15:18:52,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3519 transitions. [2023-12-09 15:18:52,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:52,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3519 transitions. [2023-12-09 15:18:52,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 219.9375) internal successors, (3519), 16 states have internal predecessors, (3519), 0 states have call successors, (0), 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 15:18:52,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 281.0) internal successors, (4777), 17 states have internal predecessors, (4777), 0 states have call successors, (0), 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 15:18:52,507 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 281.0) internal successors, (4777), 17 states have internal predecessors, (4777), 0 states have call successors, (0), 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 15:18:52,508 INFO L308 CegarLoopForPetriNet]: 241 programPoint places, 52 predicate places. [2023-12-09 15:18:52,508 INFO L500 AbstractCegarLoop]: Abstraction has has 293 places, 946 transitions, 14671 flow [2023-12-09 15:18:52,509 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 215.73684210526315) internal successors, (4099), 19 states have internal predecessors, (4099), 0 states have call successors, (0), 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 15:18:52,509 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:52,509 INFO L233 CegarLoopForPetriNet]: trace histogram [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] [2023-12-09 15:18:52,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-09 15:18:52,714 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:18:52,715 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-09 15:18:52,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:52,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1294419458, now seen corresponding path program 1 times [2023-12-09 15:18:52,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:52,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926920586] [2023-12-09 15:18:52,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:52,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:52,985 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:52,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:52,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926920586] [2023-12-09 15:18:52,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926920586] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:18:52,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140874792] [2023-12-09 15:18:52,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:52,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:18:52,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:18:52,987 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 15:18:53,016 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 15:18:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:53,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-09 15:18:53,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:18:53,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:53,283 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:18:53,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:53,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140874792] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:18:53,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:18:53,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-12-09 15:18:53,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602653293] [2023-12-09 15:18:53,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:18:53,432 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:18:53,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:53,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:18:53,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:18:53,436 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 281 [2023-12-09 15:18:53,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 946 transitions, 14671 flow. Second operand has 19 states, 19 states have (on average 215.6315789473684) internal successors, (4097), 19 states have internal predecessors, (4097), 0 states have call successors, (0), 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 15:18:53,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:53,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 281 [2023-12-09 15:18:53,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:57,056 INFO L124 PetriNetUnfolderBase]: 7370/17563 cut-off events. [2023-12-09 15:18:57,056 INFO L125 PetriNetUnfolderBase]: For 71540/76894 co-relation queries the response was YES. [2023-12-09 15:18:57,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112467 conditions, 17563 events. 7370/17563 cut-off events. For 71540/76894 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 168000 event pairs, 393 based on Foata normal form. 192/16235 useless extension candidates. Maximal degree in co-relation 92788. Up to 9995 conditions per place. [2023-12-09 15:18:57,288 INFO L140 encePairwiseOnDemand]: 262/281 looper letters, 354 selfloop transitions, 34 changer transitions 278/854 dead transitions. [2023-12-09 15:18:57,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 854 transitions, 14238 flow [2023-12-09 15:18:57,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:18:57,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:18:57,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3511 transitions. [2023-12-09 15:18:57,294 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7809163701067615 [2023-12-09 15:18:57,294 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3511 transitions. [2023-12-09 15:18:57,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3511 transitions. [2023-12-09 15:18:57,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:57,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3511 transitions. [2023-12-09 15:18:57,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 219.4375) internal successors, (3511), 16 states have internal predecessors, (3511), 0 states have call successors, (0), 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 15:18:57,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 281.0) internal successors, (4777), 17 states have internal predecessors, (4777), 0 states have call successors, (0), 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 15:18:57,306 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 281.0) internal successors, (4777), 17 states have internal predecessors, (4777), 0 states have call successors, (0), 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 15:18:57,307 INFO L308 CegarLoopForPetriNet]: 241 programPoint places, 67 predicate places. [2023-12-09 15:18:57,307 INFO L500 AbstractCegarLoop]: Abstraction has has 308 places, 854 transitions, 14238 flow [2023-12-09 15:18:57,308 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 215.6315789473684) internal successors, (4097), 19 states have internal predecessors, (4097), 0 states have call successors, (0), 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 15:18:57,308 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:57,308 INFO L233 CegarLoopForPetriNet]: trace histogram [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] [2023-12-09 15:18:57,316 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 15:18:57,513 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,SelfDestructingSolverStorable8 [2023-12-09 15:18:57,514 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-09 15:18:57,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:57,514 INFO L85 PathProgramCache]: Analyzing trace with hash 853891598, now seen corresponding path program 2 times [2023-12-09 15:18:57,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:57,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746127579] [2023-12-09 15:18:57,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:57,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:57,716 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:57,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:57,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746127579] [2023-12-09 15:18:57,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746127579] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:18:57,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417222940] [2023-12-09 15:18:57,716 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:18:57,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:18:57,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:18:57,731 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 15:18:57,732 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 15:18:57,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:18:57,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:18:57,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-09 15:18:57,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:18:57,944 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-09 15:18:57,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:18:57,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417222940] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:57,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:18:57,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-12-09 15:18:57,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936505609] [2023-12-09 15:18:57,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:57,945 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:18:57,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:57,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:18:57,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:18:57,946 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 281 [2023-12-09 15:18:57,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 854 transitions, 14238 flow. Second operand has 5 states, 5 states have (on average 230.6) internal successors, (1153), 5 states have internal predecessors, (1153), 0 states have call successors, (0), 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 15:18:57,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:57,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 281 [2023-12-09 15:18:57,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:19:01,404 INFO L124 PetriNetUnfolderBase]: 7633/17986 cut-off events. [2023-12-09 15:19:01,404 INFO L125 PetriNetUnfolderBase]: For 87569/91905 co-relation queries the response was YES. [2023-12-09 15:19:01,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126640 conditions, 17986 events. 7633/17986 cut-off events. For 87569/91905 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 171440 event pairs, 197 based on Foata normal form. 143/16590 useless extension candidates. Maximal degree in co-relation 105449. Up to 10351 conditions per place. [2023-12-09 15:19:01,657 INFO L140 encePairwiseOnDemand]: 271/281 looper letters, 551 selfloop transitions, 30 changer transitions 288/1079 dead transitions. [2023-12-09 15:19:01,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 1079 transitions, 20708 flow [2023-12-09 15:19:01,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:19:01,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:19:01,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1220 transitions. [2023-12-09 15:19:01,659 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8683274021352313 [2023-12-09 15:19:01,659 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1220 transitions. [2023-12-09 15:19:01,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1220 transitions. [2023-12-09 15:19:01,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:19:01,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1220 transitions. [2023-12-09 15:19:01,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 0 states have call successors, (0), 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 15:19:01,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 281.0) internal successors, (1686), 6 states have internal predecessors, (1686), 0 states have call successors, (0), 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 15:19:01,663 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 281.0) internal successors, (1686), 6 states have internal predecessors, (1686), 0 states have call successors, (0), 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 15:19:01,664 INFO L308 CegarLoopForPetriNet]: 241 programPoint places, 71 predicate places. [2023-12-09 15:19:01,664 INFO L500 AbstractCegarLoop]: Abstraction has has 312 places, 1079 transitions, 20708 flow [2023-12-09 15:19:01,664 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 230.6) internal successors, (1153), 5 states have internal predecessors, (1153), 0 states have call successors, (0), 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 15:19:01,664 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:19:01,664 INFO L233 CegarLoopForPetriNet]: trace histogram [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] [2023-12-09 15:19:01,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-09 15:19:01,870 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:19:01,871 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-09 15:19:01,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:19:01,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1619765794, now seen corresponding path program 3 times [2023-12-09 15:19:01,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:19:01,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472317725] [2023-12-09 15:19:01,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:19:01,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:19:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:19:02,052 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:19:02,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:19:02,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472317725] [2023-12-09 15:19:02,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472317725] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:19:02,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466943598] [2023-12-09 15:19:02,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-09 15:19:02,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:19:02,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:19:02,053 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 15:19:02,058 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 15:19:02,209 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-09 15:19:02,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:19:02,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-09 15:19:02,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:19:02,352 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-09 15:19:02,352 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:19:02,430 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-09 15:19:02,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466943598] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:19:02,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:19:02,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2023-12-09 15:19:02,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604886471] [2023-12-09 15:19:02,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:19:02,431 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 15:19:02,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:19:02,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 15:19:02,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:19:02,433 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 281 [2023-12-09 15:19:02,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 1079 transitions, 20708 flow. Second operand has 14 states, 14 states have (on average 216.5) internal successors, (3031), 14 states have internal predecessors, (3031), 0 states have call successors, (0), 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 15:19:02,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:19:02,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 281 [2023-12-09 15:19:02,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:19:05,916 INFO L124 PetriNetUnfolderBase]: 6420/15232 cut-off events. [2023-12-09 15:19:05,917 INFO L125 PetriNetUnfolderBase]: For 89125/93080 co-relation queries the response was YES. [2023-12-09 15:19:05,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115326 conditions, 15232 events. 6420/15232 cut-off events. For 89125/93080 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 140583 event pairs, 166 based on Foata normal form. 282/14264 useless extension candidates. Maximal degree in co-relation 90781. Up to 8708 conditions per place. [2023-12-09 15:19:06,100 INFO L140 encePairwiseOnDemand]: 261/281 looper letters, 603 selfloop transitions, 57 changer transitions 275/1115 dead transitions. [2023-12-09 15:19:06,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 1115 transitions, 23468 flow [2023-12-09 15:19:06,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:19:06,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:19:06,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3726 transitions. [2023-12-09 15:19:06,105 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.779987439815784 [2023-12-09 15:19:06,105 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3726 transitions. [2023-12-09 15:19:06,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3726 transitions. [2023-12-09 15:19:06,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:19:06,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3726 transitions. [2023-12-09 15:19:06,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 219.1764705882353) internal successors, (3726), 17 states have internal predecessors, (3726), 0 states have call successors, (0), 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 15:19:06,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 281.0) internal successors, (5058), 18 states have internal predecessors, (5058), 0 states have call successors, (0), 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 15:19:06,115 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 281.0) internal successors, (5058), 18 states have internal predecessors, (5058), 0 states have call successors, (0), 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 15:19:06,115 INFO L308 CegarLoopForPetriNet]: 241 programPoint places, 87 predicate places. [2023-12-09 15:19:06,115 INFO L500 AbstractCegarLoop]: Abstraction has has 328 places, 1115 transitions, 23468 flow [2023-12-09 15:19:06,116 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 216.5) internal successors, (3031), 14 states have internal predecessors, (3031), 0 states have call successors, (0), 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 15:19:06,116 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:19:06,116 INFO L233 CegarLoopForPetriNet]: trace histogram [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] [2023-12-09 15:19:06,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-09 15:19:06,320 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:19:06,321 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-09 15:19:06,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:19:06,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1071946118, now seen corresponding path program 2 times [2023-12-09 15:19:06,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:19:06,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476260215] [2023-12-09 15:19:06,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:19:06,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:19:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:19:06,502 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:19:06,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:19:06,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476260215] [2023-12-09 15:19:06,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476260215] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:19:06,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937538] [2023-12-09 15:19:06,503 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:19:06,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:19:06,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:19:06,504 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:19:06,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-09 15:19:06,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:19:06,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:19:06,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-09 15:19:06,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:19:06,735 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-09 15:19:06,735 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:19:06,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:19:06,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:19:06,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-09 15:19:06,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520707910] [2023-12-09 15:19:06,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:19:06,738 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:19:06,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:19:06,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:19:06,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-09 15:19:06,739 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 281 [2023-12-09 15:19:06,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 1115 transitions, 23468 flow. Second operand has 5 states, 5 states have (on average 230.6) internal successors, (1153), 5 states have internal predecessors, (1153), 0 states have call successors, (0), 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 15:19:06,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:19:06,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 281 [2023-12-09 15:19:06,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:19:10,534 INFO L124 PetriNetUnfolderBase]: 6985/16919 cut-off events. [2023-12-09 15:19:10,534 INFO L125 PetriNetUnfolderBase]: For 128951/137031 co-relation queries the response was YES. [2023-12-09 15:19:10,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136047 conditions, 16919 events. 6985/16919 cut-off events. For 128951/137031 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 162164 event pairs, 173 based on Foata normal form. 296/15745 useless extension candidates. Maximal degree in co-relation 108656. Up to 9527 conditions per place. [2023-12-09 15:19:10,773 INFO L140 encePairwiseOnDemand]: 270/281 looper letters, 643 selfloop transitions, 34 changer transitions 279/1160 dead transitions. [2023-12-09 15:19:10,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 1160 transitions, 26505 flow [2023-12-09 15:19:10,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:19:10,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:19:10,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1233 transitions. [2023-12-09 15:19:10,775 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8775800711743772 [2023-12-09 15:19:10,775 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1233 transitions. [2023-12-09 15:19:10,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1233 transitions. [2023-12-09 15:19:10,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:19:10,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1233 transitions. [2023-12-09 15:19:10,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 246.6) internal successors, (1233), 5 states have internal predecessors, (1233), 0 states have call successors, (0), 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 15:19:10,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 281.0) internal successors, (1686), 6 states have internal predecessors, (1686), 0 states have call successors, (0), 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 15:19:10,779 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 281.0) internal successors, (1686), 6 states have internal predecessors, (1686), 0 states have call successors, (0), 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 15:19:10,780 INFO L308 CegarLoopForPetriNet]: 241 programPoint places, 91 predicate places. [2023-12-09 15:19:10,780 INFO L500 AbstractCegarLoop]: Abstraction has has 332 places, 1160 transitions, 26505 flow [2023-12-09 15:19:10,780 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 230.6) internal successors, (1153), 5 states have internal predecessors, (1153), 0 states have call successors, (0), 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 15:19:10,780 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:19:10,780 INFO L233 CegarLoopForPetriNet]: trace histogram [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] [2023-12-09 15:19:10,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-09 15:19:10,988 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-09 15:19:10,988 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-09 15:19:10,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:19:10,988 INFO L85 PathProgramCache]: Analyzing trace with hash -970622071, now seen corresponding path program 1 times [2023-12-09 15:19:10,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:19:10,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577458212] [2023-12-09 15:19:10,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:19:10,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:19:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:19:11,180 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:19:11,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:19:11,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577458212] [2023-12-09 15:19:11,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577458212] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:19:11,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406673281] [2023-12-09 15:19:11,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:19:11,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:19:11,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:19:11,181 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:19:11,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-09 15:19:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:19:11,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-09 15:19:11,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:19:11,442 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:19:11,442 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:19:11,583 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:19:11,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406673281] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-09 15:19:11,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:19:11,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 19 [2023-12-09 15:19:11,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920120148] [2023-12-09 15:19:11,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:19:11,584 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:19:11,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:19:11,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:19:11,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:19:11,585 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 281 [2023-12-09 15:19:11,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 1160 transitions, 26505 flow. Second operand has 9 states, 9 states have (on average 217.11111111111111) internal successors, (1954), 9 states have internal predecessors, (1954), 0 states have call successors, (0), 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 15:19:11,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:19:11,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 281 [2023-12-09 15:19:11,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:19:14,686 INFO L124 PetriNetUnfolderBase]: 5606/13528 cut-off events. [2023-12-09 15:19:14,687 INFO L125 PetriNetUnfolderBase]: For 120261/127693 co-relation queries the response was YES. [2023-12-09 15:19:14,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116170 conditions, 13528 events. 5606/13528 cut-off events. For 120261/127693 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 123292 event pairs, 125 based on Foata normal form. 166/12584 useless extension candidates. Maximal degree in co-relation 90288. Up to 7603 conditions per place. [2023-12-09 15:19:14,875 INFO L140 encePairwiseOnDemand]: 265/281 looper letters, 521 selfloop transitions, 32 changer transitions 274/1003 dead transitions. [2023-12-09 15:19:14,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 1003 transitions, 23938 flow [2023-12-09 15:19:14,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 15:19:14,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 15:19:14,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2223 transitions. [2023-12-09 15:19:14,877 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7911032028469751 [2023-12-09 15:19:14,877 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2223 transitions. [2023-12-09 15:19:14,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2223 transitions. [2023-12-09 15:19:14,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:19:14,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2223 transitions. [2023-12-09 15:19:14,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 222.3) internal successors, (2223), 10 states have internal predecessors, (2223), 0 states have call successors, (0), 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 15:19:14,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 281.0) internal successors, (3091), 11 states have internal predecessors, (3091), 0 states have call successors, (0), 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 15:19:14,883 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 281.0) internal successors, (3091), 11 states have internal predecessors, (3091), 0 states have call successors, (0), 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 15:19:14,883 INFO L308 CegarLoopForPetriNet]: 241 programPoint places, 100 predicate places. [2023-12-09 15:19:14,883 INFO L500 AbstractCegarLoop]: Abstraction has has 341 places, 1003 transitions, 23938 flow [2023-12-09 15:19:14,884 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 217.11111111111111) internal successors, (1954), 9 states have internal predecessors, (1954), 0 states have call successors, (0), 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 15:19:14,884 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:19:14,884 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] [2023-12-09 15:19:14,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-09 15:19:15,089 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:19:15,090 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-09 15:19:15,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:19:15,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1153633382, now seen corresponding path program 1 times [2023-12-09 15:19:15,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:19:15,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824652844] [2023-12-09 15:19:15,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:19:15,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:19:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:19:17,613 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:19:17,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:19:17,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824652844] [2023-12-09 15:19:17,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824652844] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:19:17,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007428632] [2023-12-09 15:19:17,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:19:17,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:19:17,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:19:17,615 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:19:17,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-09 15:19:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:19:17,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 64 conjunts are in the unsatisfiable core [2023-12-09 15:19:17,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:19:18,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1 [2023-12-09 15:19:18,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 1 [2023-12-09 15:19:18,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 1 [2023-12-09 15:19:18,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 1 [2023-12-09 15:19:18,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 1 [2023-12-09 15:19:18,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-09 15:19:18,805 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 0 case distinctions, treesize of input 18 treesize of output 13 [2023-12-09 15:19:18,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-09 15:19:18,881 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 0 case distinctions, treesize of input 18 treesize of output 13 [2023-12-09 15:19:18,964 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 19 treesize of output 7 [2023-12-09 15:19:19,027 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:19:19,027 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:19:19,448 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_thread4Thread1of1ForFork2_~#t6~0.base_25| Int)) (or (< |v_thread4Thread1of1ForFork2_~#t6~0.base_25| (+ |c_#StackHeapBarrier| 1)) (forall ((v_ArrVal_685 (Array Int Int)) (v_ArrVal_686 (Array Int Int))) (= (+ c_~t_4~0 c_~s_2~0) (select (select (store (store |c_#memory_int| |c_thread4Thread1of1ForFork2_~#t5~0.base| v_ArrVal_685) |v_thread4Thread1of1ForFork2_~#t6~0.base_25| v_ArrVal_686) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))))) is different from false [2023-12-09 15:19:20,368 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_thread4Thread1of1ForFork2_~#t5~0.base_25| Int)) (let ((.cse0 (+ |c_#StackHeapBarrier| 1))) (or (forall ((|v_thread4Thread1of1ForFork2_~#t6~0.base_25| Int)) (or (forall ((v_ArrVal_685 (Array Int Int)) (v_ArrVal_686 (Array Int Int))) (= (+ c_~t_4~0 c_~s_2~0) (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork2_~#t5~0.base_25| v_ArrVal_685) |v_thread4Thread1of1ForFork2_~#t6~0.base_25| v_ArrVal_686) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) (< |v_thread4Thread1of1ForFork2_~#t6~0.base_25| .cse0))) (< |v_thread4Thread1of1ForFork2_~#t5~0.base_25| .cse0)))) is different from false [2023-12-09 15:19:22,413 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_thread4Thread1of1ForFork2_~#t5~0.base_25| Int) (|v_thread4Thread1of1ForFork2_~#t6~0.base_25| Int) (v_ArrVal_685 (Array Int Int)) (v_ArrVal_686 (Array Int Int))) (let ((.cse0 (+ |c_#StackHeapBarrier| 1))) (or (< |v_thread4Thread1of1ForFork2_~#t5~0.base_25| .cse0) (= (+ (select (select |c_#memory_int| c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork2_~#t5~0.base_25| v_ArrVal_685) |v_thread4Thread1of1ForFork2_~#t6~0.base_25| v_ArrVal_686) c_~X_0~0.base) (+ c_~X_0~0.offset 4))) (< |v_thread4Thread1of1ForFork2_~#t6~0.base_25| .cse0)))) is different from false [2023-12-09 15:19:24,477 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_thread4Thread1of1ForFork2_~#t5~0.base_25| Int) (|v_thread4Thread1of1ForFork2_~#t6~0.base_25| Int) (v_ArrVal_685 (Array Int Int)) (v_ArrVal_684 (Array Int Int)) (v_ArrVal_686 (Array Int Int))) (let ((.cse1 (+ |c_#StackHeapBarrier| 1))) (or (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_684))) (= (+ (select (select .cse0 c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (select (select (store (store .cse0 |v_thread4Thread1of1ForFork2_~#t5~0.base_25| v_ArrVal_685) |v_thread4Thread1of1ForFork2_~#t6~0.base_25| v_ArrVal_686) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) (< |v_thread4Thread1of1ForFork2_~#t5~0.base_25| .cse1) (< |v_thread4Thread1of1ForFork2_~#t6~0.base_25| .cse1)))) is different from false [2023-12-09 15:19:26,572 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_thread4Thread1of1ForFork2_~#t5~0.base_25| Int) (|v_thread4Thread1of1ForFork2_~#t6~0.base_25| Int) (v_ArrVal_683 (Array Int Int)) (v_ArrVal_685 (Array Int Int)) (v_ArrVal_684 (Array Int Int)) (v_ArrVal_686 (Array Int Int))) (let ((.cse1 (+ |c_#StackHeapBarrier| 1))) (or (let ((.cse0 (store (store |c_#memory_int| |c_thread1Thread1of1ForFork0_~#t3~0.base| v_ArrVal_683) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_684))) (= (+ (select (select .cse0 c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (select (select (store (store .cse0 |v_thread4Thread1of1ForFork2_~#t5~0.base_25| v_ArrVal_685) |v_thread4Thread1of1ForFork2_~#t6~0.base_25| v_ArrVal_686) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) (< |v_thread4Thread1of1ForFork2_~#t5~0.base_25| .cse1) (< |v_thread4Thread1of1ForFork2_~#t6~0.base_25| .cse1)))) is different from false [2023-12-09 15:19:28,638 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_thread4Thread1of1ForFork2_~#t5~0.base_25| Int) (|v_thread4Thread1of1ForFork2_~#t6~0.base_25| Int) (v_ArrVal_683 (Array Int Int)) (v_ArrVal_682 (Array Int Int)) (v_ArrVal_685 (Array Int Int)) (v_ArrVal_684 (Array Int Int)) (v_ArrVal_686 (Array Int Int))) (let ((.cse1 (+ |c_#StackHeapBarrier| 1))) (or (let ((.cse0 (store (store (store |c_#memory_int| |c_thread1Thread1of1ForFork0_~#t2~0.base| v_ArrVal_682) |c_thread1Thread1of1ForFork0_~#t3~0.base| v_ArrVal_683) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_684))) (= (+ (select (select .cse0 c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (select (select (store (store .cse0 |v_thread4Thread1of1ForFork2_~#t5~0.base_25| v_ArrVal_685) |v_thread4Thread1of1ForFork2_~#t6~0.base_25| v_ArrVal_686) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) (< |v_thread4Thread1of1ForFork2_~#t5~0.base_25| .cse1) (< |v_thread4Thread1of1ForFork2_~#t6~0.base_25| .cse1)))) is different from false [2023-12-09 15:19:39,853 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-09 15:19:39,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 69 treesize of output 58 [2023-12-09 15:19:40,746 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 8866353643510 treesize of output 8822841933814 [2023-12-09 15:20:01,283 WARN L293 SmtUtils]: Spent 20.30s on a formula simplification. DAG size of input: 77370 DAG size of output: 115 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-09 15:20:01,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1066 treesize of output 1002 [2023-12-09 15:20:01,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1002 treesize of output 874 [2023-12-09 15:20:01,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 431 treesize of output 419 [2023-12-09 15:20:01,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 862 treesize of output 814 [2023-12-09 15:20:01,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 814 treesize of output 718 [2023-12-09 15:20:01,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 370 treesize of output 346 [2023-12-09 15:20:01,716 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-12-09 15:20:01,820 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 6 times theorem prover too weak. 4 trivial. 2 not checked. [2023-12-09 15:20:01,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007428632] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:20:01,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:20:01,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 30, 26] total 71 [2023-12-09 15:20:01,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302001175] [2023-12-09 15:20:01,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:20:01,821 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-12-09 15:20:01,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:20:01,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-12-09 15:20:01,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=338, Invalid=3804, Unknown=42, NotChecked=786, Total=4970 [2023-12-09 15:20:01,829 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 281 [2023-12-09 15:20:01,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 1003 transitions, 23938 flow. Second operand has 71 states, 71 states have (on average 140.16901408450704) internal successors, (9952), 71 states have internal predecessors, (9952), 0 states have call successors, (0), 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 15:20:01,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:20:01,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 281 [2023-12-09 15:20:01,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand