/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 -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 15:56:05,984 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 15:56:06,035 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-SemanticLbe.epf [2023-11-17 15:56:06,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 15:56:06,057 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 15:56:06,057 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 15:56:06,058 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 15:56:06,058 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 15:56:06,059 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 15:56:06,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 15:56:06,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 15:56:06,060 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 15:56:06,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 15:56:06,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 15:56:06,061 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 15:56:06,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 15:56:06,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 15:56:06,062 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 15:56:06,062 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 15:56:06,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 15:56:06,063 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 15:56:06,063 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 15:56:06,064 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 15:56:06,064 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 15:56:06,065 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 15:56:06,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:56:06,065 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 15:56:06,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 15:56:06,066 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 15:56:06,066 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 15:56:06,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 15:56:06,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 15:56:06,067 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-17 15:56:06,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 15:56:06,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 15:56:06,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 15:56:06,288 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 15:56:06,288 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 15:56:06,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c [2023-11-17 15:56:07,490 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 15:56:07,688 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 15:56:07,689 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c [2023-11-17 15:56:07,699 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ff863aa4/1d07dee5c10c4b1098abb51f5b34dcca/FLAGdd1b07674 [2023-11-17 15:56:07,712 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ff863aa4/1d07dee5c10c4b1098abb51f5b34dcca [2023-11-17 15:56:07,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 15:56:07,715 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 15:56:07,716 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 15:56:07,716 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 15:56:07,723 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 15:56:07,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:56:07" (1/1) ... [2023-11-17 15:56:07,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2532821c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:56:07, skipping insertion in model container [2023-11-17 15:56:07,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:56:07" (1/1) ... [2023-11-17 15:56:07,763 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 15:56:08,016 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/chl-poker-hand-trans.wvr.c[18913,18926] [2023-11-17 15:56:08,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:56:08,033 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 15:56:08,109 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/chl-poker-hand-trans.wvr.c[18913,18926] [2023-11-17 15:56:08,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:56:08,119 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:56:08,119 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:56:08,126 INFO L206 MainTranslator]: Completed translation [2023-11-17 15:56:08,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:56:08 WrapperNode [2023-11-17 15:56:08,126 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 15:56:08,127 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 15:56:08,128 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 15:56:08,128 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 15:56:08,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:56:08" (1/1) ... [2023-11-17 15:56:08,160 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:56:08" (1/1) ... [2023-11-17 15:56:08,257 INFO L138 Inliner]: procedures = 26, calls = 454, calls flagged for inlining = 100, calls inlined = 144, statements flattened = 2379 [2023-11-17 15:56:08,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 15:56:08,259 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 15:56:08,259 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 15:56:08,259 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 15:56:08,267 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:56:08" (1/1) ... [2023-11-17 15:56:08,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:56:08" (1/1) ... [2023-11-17 15:56:08,278 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:56:08" (1/1) ... [2023-11-17 15:56:08,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:56:08" (1/1) ... [2023-11-17 15:56:08,325 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:56:08" (1/1) ... [2023-11-17 15:56:08,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:56:08" (1/1) ... [2023-11-17 15:56:08,347 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:56:08" (1/1) ... [2023-11-17 15:56:08,355 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:56:08" (1/1) ... [2023-11-17 15:56:08,368 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 15:56:08,369 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 15:56:08,369 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 15:56:08,369 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 15:56:08,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:56:08" (1/1) ... [2023-11-17 15:56:08,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:56:08,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:56:08,398 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) [2023-11-17 15:56:08,425 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 [2023-11-17 15:56:08,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 15:56:08,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 15:56:08,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 15:56:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 15:56:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-17 15:56:08,433 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-17 15:56:08,434 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-17 15:56:08,434 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-17 15:56:08,434 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-17 15:56:08,434 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-17 15:56:08,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 15:56:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 15:56:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 15:56:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 15:56:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 15:56:08,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 15:56:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 15:56:08,439 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 15:56:08,664 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 15:56:08,666 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 15:56:10,614 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 15:56:12,811 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 15:56:12,811 INFO L307 CfgBuilder]: Removed 18 assume(true) statements. [2023-11-17 15:56:12,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:56:12 BoogieIcfgContainer [2023-11-17 15:56:12,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 15:56:12,818 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 15:56:12,818 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 15:56:12,820 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 15:56:12,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:56:07" (1/3) ... [2023-11-17 15:56:12,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3998c8f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:56:12, skipping insertion in model container [2023-11-17 15:56:12,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:56:08" (2/3) ... [2023-11-17 15:56:12,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3998c8f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:56:12, skipping insertion in model container [2023-11-17 15:56:12,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:56:12" (3/3) ... [2023-11-17 15:56:12,823 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-trans.wvr.c [2023-11-17 15:56:12,839 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 15:56:12,839 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 15:56:12,840 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 15:56:13,284 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-17 15:56:13,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 733 places, 802 transitions, 1625 flow [2023-11-17 15:56:13,612 INFO L124 PetriNetUnfolderBase]: 79/799 cut-off events. [2023-11-17 15:56:13,612 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-17 15:56:13,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 812 conditions, 799 events. 79/799 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 922 event pairs, 0 based on Foata normal form. 0/719 useless extension candidates. Maximal degree in co-relation 715. Up to 7 conditions per place. [2023-11-17 15:56:13,621 INFO L82 GeneralOperation]: Start removeDead. Operand has 733 places, 802 transitions, 1625 flow [2023-11-17 15:56:13,633 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 719 places, 788 transitions, 1594 flow [2023-11-17 15:56:13,644 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 15:56:13,660 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 719 places, 788 transitions, 1594 flow [2023-11-17 15:56:13,663 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 719 places, 788 transitions, 1594 flow [2023-11-17 15:56:13,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 719 places, 788 transitions, 1594 flow [2023-11-17 15:56:13,910 INFO L124 PetriNetUnfolderBase]: 79/788 cut-off events. [2023-11-17 15:56:13,911 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-17 15:56:13,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 788 events. 79/788 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 922 event pairs, 0 based on Foata normal form. 0/709 useless extension candidates. Maximal degree in co-relation 715. Up to 7 conditions per place. [2023-11-17 15:56:13,924 INFO L119 LiptonReduction]: Number of co-enabled transitions 22848 [2023-11-17 15:57:32,143 INFO L134 LiptonReduction]: Checked pairs total: 24461 [2023-11-17 15:57:32,143 INFO L136 LiptonReduction]: Total number of compositions: 942 [2023-11-17 15:57:32,157 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 15:57:32,163 INFO L357 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=false, 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;@7a584be0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 15:57:32,163 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-17 15:57:32,227 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 15:57:32,227 INFO L124 PetriNetUnfolderBase]: 24/57 cut-off events. [2023-11-17 15:57:32,227 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-17 15:57:32,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:57:32,228 INFO L208 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] [2023-11-17 15:57:32,229 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:57:32,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:57:32,233 INFO L85 PathProgramCache]: Analyzing trace with hash -819358644, now seen corresponding path program 1 times [2023-11-17 15:57:32,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:57:32,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716315743] [2023-11-17 15:57:32,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:57:32,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:57:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:57:32,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:57:32,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:57:32,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716315743] [2023-11-17 15:57:32,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716315743] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:57:32,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:57:32,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:57:32,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791478924] [2023-11-17 15:57:32,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:57:32,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:57:32,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:57:32,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:57:32,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:57:33,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 1744 [2023-11-17 15:57:33,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 58 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 572.3333333333334) internal successors, (1717), 3 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:33,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:57:33,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 1744 [2023-11-17 15:57:33,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:57:34,778 INFO L124 PetriNetUnfolderBase]: 873/1099 cut-off events. [2023-11-17 15:57:34,778 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-11-17 15:57:34,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2266 conditions, 1099 events. 873/1099 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2621 event pairs, 333 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 1844. Up to 1097 conditions per place. [2023-11-17 15:57:34,788 INFO L140 encePairwiseOnDemand]: 1737/1744 looper letters, 55 selfloop transitions, 6 changer transitions 0/61 dead transitions. [2023-11-17 15:57:34,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 61 transitions, 262 flow [2023-11-17 15:57:34,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:57:34,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:57:34,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1753 transitions. [2023-11-17 15:57:34,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33505351681957185 [2023-11-17 15:57:34,811 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1753 transitions. [2023-11-17 15:57:34,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1753 transitions. [2023-11-17 15:57:34,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:57:34,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1753 transitions. [2023-11-17 15:57:34,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 584.3333333333334) internal successors, (1753), 3 states have internal predecessors, (1753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:34,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1744.0) internal successors, (6976), 4 states have internal predecessors, (6976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:34,845 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1744.0) internal successors, (6976), 4 states have internal predecessors, (6976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:34,846 INFO L175 Difference]: Start difference. First operand has 44 places, 58 transitions, 134 flow. Second operand 3 states and 1753 transitions. [2023-11-17 15:57:34,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 61 transitions, 262 flow [2023-11-17 15:57:34,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 61 transitions, 250 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-17 15:57:34,852 INFO L231 Difference]: Finished difference. Result has 41 places, 61 transitions, 154 flow [2023-11-17 15:57:34,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1744, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=41, PETRI_TRANSITIONS=61} [2023-11-17 15:57:34,856 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -3 predicate places. [2023-11-17 15:57:34,857 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 61 transitions, 154 flow [2023-11-17 15:57:34,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 572.3333333333334) internal successors, (1717), 3 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:34,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:57:34,858 INFO L208 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] [2023-11-17 15:57:34,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 15:57:34,859 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:57:34,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:57:34,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1279415309, now seen corresponding path program 1 times [2023-11-17 15:57:34,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:57:34,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121309816] [2023-11-17 15:57:34,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:57:34,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:57:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:57:35,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-17 15:57:35,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:57:35,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121309816] [2023-11-17 15:57:35,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121309816] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:57:35,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:57:35,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:57:35,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993301049] [2023-11-17 15:57:35,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:57:35,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:57:35,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:57:35,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:57:35,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:57:35,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 1744 [2023-11-17 15:57:35,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 61 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 573.3333333333334) internal successors, (1720), 3 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:35,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:57:35,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 1744 [2023-11-17 15:57:35,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:57:36,654 INFO L124 PetriNetUnfolderBase]: 873/1102 cut-off events. [2023-11-17 15:57:36,655 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-17 15:57:36,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2242 conditions, 1102 events. 873/1102 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2607 event pairs, 333 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 2211. Up to 1100 conditions per place. [2023-11-17 15:57:36,660 INFO L140 encePairwiseOnDemand]: 1737/1744 looper letters, 58 selfloop transitions, 6 changer transitions 0/64 dead transitions. [2023-11-17 15:57:36,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 64 transitions, 288 flow [2023-11-17 15:57:36,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:57:36,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:57:36,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1753 transitions. [2023-11-17 15:57:36,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33505351681957185 [2023-11-17 15:57:36,667 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1753 transitions. [2023-11-17 15:57:36,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1753 transitions. [2023-11-17 15:57:36,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:57:36,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1753 transitions. [2023-11-17 15:57:36,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 584.3333333333334) internal successors, (1753), 3 states have internal predecessors, (1753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:36,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1744.0) internal successors, (6976), 4 states have internal predecessors, (6976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:36,686 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1744.0) internal successors, (6976), 4 states have internal predecessors, (6976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:36,686 INFO L175 Difference]: Start difference. First operand has 41 places, 61 transitions, 154 flow. Second operand 3 states and 1753 transitions. [2023-11-17 15:57:36,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 64 transitions, 288 flow [2023-11-17 15:57:36,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 64 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:57:36,688 INFO L231 Difference]: Finished difference. Result has 43 places, 64 transitions, 180 flow [2023-11-17 15:57:36,689 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1744, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=43, PETRI_TRANSITIONS=64} [2023-11-17 15:57:36,690 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -1 predicate places. [2023-11-17 15:57:36,690 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 64 transitions, 180 flow [2023-11-17 15:57:36,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 573.3333333333334) internal successors, (1720), 3 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:36,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:57:36,693 INFO L208 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] [2023-11-17 15:57:36,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 15:57:36,696 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:57:36,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:57:36,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1971232430, now seen corresponding path program 1 times [2023-11-17 15:57:36,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:57:36,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893933506] [2023-11-17 15:57:36,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:57:36,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:57:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:57:37,074 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-17 15:57:37,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:57:37,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893933506] [2023-11-17 15:57:37,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893933506] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:57:37,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:57:37,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:57:37,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866481742] [2023-11-17 15:57:37,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:57:37,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:57:37,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:57:37,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:57:37,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:57:37,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 1744 [2023-11-17 15:57:37,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 64 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 574.3333333333334) internal successors, (1723), 3 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:37,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:57:37,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 1744 [2023-11-17 15:57:37,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:57:38,398 INFO L124 PetriNetUnfolderBase]: 873/1108 cut-off events. [2023-11-17 15:57:38,398 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-17 15:57:38,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2265 conditions, 1108 events. 873/1108 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2607 event pairs, 333 based on Foata normal form. 0/571 useless extension candidates. Maximal degree in co-relation 2229. Up to 1103 conditions per place. [2023-11-17 15:57:38,403 INFO L140 encePairwiseOnDemand]: 1731/1744 looper letters, 58 selfloop transitions, 12 changer transitions 0/70 dead transitions. [2023-11-17 15:57:38,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 70 transitions, 332 flow [2023-11-17 15:57:38,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:57:38,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:57:38,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1759 transitions. [2023-11-17 15:57:38,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33620030581039756 [2023-11-17 15:57:38,410 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1759 transitions. [2023-11-17 15:57:38,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1759 transitions. [2023-11-17 15:57:38,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:57:38,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1759 transitions. [2023-11-17 15:57:38,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 586.3333333333334) internal successors, (1759), 3 states have internal predecessors, (1759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:38,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1744.0) internal successors, (6976), 4 states have internal predecessors, (6976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:38,428 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1744.0) internal successors, (6976), 4 states have internal predecessors, (6976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:38,429 INFO L175 Difference]: Start difference. First operand has 43 places, 64 transitions, 180 flow. Second operand 3 states and 1759 transitions. [2023-11-17 15:57:38,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 70 transitions, 332 flow [2023-11-17 15:57:38,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 70 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:57:38,432 INFO L231 Difference]: Finished difference. Result has 45 places, 70 transitions, 236 flow [2023-11-17 15:57:38,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1744, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=45, PETRI_TRANSITIONS=70} [2023-11-17 15:57:38,433 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 1 predicate places. [2023-11-17 15:57:38,433 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 70 transitions, 236 flow [2023-11-17 15:57:38,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 574.3333333333334) internal successors, (1723), 3 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:38,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:57:38,434 INFO L208 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] [2023-11-17 15:57:38,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 15:57:38,435 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:57:38,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:57:38,435 INFO L85 PathProgramCache]: Analyzing trace with hash 828436669, now seen corresponding path program 1 times [2023-11-17 15:57:38,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:57:38,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920060701] [2023-11-17 15:57:38,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:57:38,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:57:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:57:38,876 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-17 15:57:38,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:57:38,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920060701] [2023-11-17 15:57:38,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920060701] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:57:38,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533250686] [2023-11-17 15:57:38,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:57:38,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:57:38,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:57:38,883 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) [2023-11-17 15:57:38,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-17 15:57:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:57:39,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-17 15:57:39,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 15:57:39,928 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-17 15:57:39,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 15:57:39,966 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-17 15:57:39,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533250686] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 15:57:39,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 15:57:39,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-11-17 15:57:39,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995551970] [2023-11-17 15:57:39,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 15:57:39,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 15:57:39,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:57:39,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 15:57:39,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-11-17 15:57:39,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 1744 [2023-11-17 15:57:39,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 70 transitions, 236 flow. Second operand has 8 states, 8 states have (on average 569.0) internal successors, (4552), 8 states have internal predecessors, (4552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:39,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:57:39,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 1744 [2023-11-17 15:57:39,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:57:41,629 INFO L124 PetriNetUnfolderBase]: 873/1132 cut-off events. [2023-11-17 15:57:41,630 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-17 15:57:41,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2360 conditions, 1132 events. 873/1132 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2607 event pairs, 333 based on Foata normal form. 11/610 useless extension candidates. Maximal degree in co-relation 2296. Up to 1097 conditions per place. [2023-11-17 15:57:41,635 INFO L140 encePairwiseOnDemand]: 1719/1744 looper letters, 46 selfloop transitions, 48 changer transitions 0/94 dead transitions. [2023-11-17 15:57:41,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 94 transitions, 520 flow [2023-11-17 15:57:41,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 15:57:41,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 15:57:41,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 4622 transitions. [2023-11-17 15:57:41,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33127866972477066 [2023-11-17 15:57:41,648 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 4622 transitions. [2023-11-17 15:57:41,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 4622 transitions. [2023-11-17 15:57:41,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:57:41,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 4622 transitions. [2023-11-17 15:57:41,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 577.75) internal successors, (4622), 8 states have internal predecessors, (4622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:41,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 1744.0) internal successors, (15696), 9 states have internal predecessors, (15696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:41,678 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 1744.0) internal successors, (15696), 9 states have internal predecessors, (15696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:41,679 INFO L175 Difference]: Start difference. First operand has 45 places, 70 transitions, 236 flow. Second operand 8 states and 4622 transitions. [2023-11-17 15:57:41,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 94 transitions, 520 flow [2023-11-17 15:57:41,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 94 transitions, 508 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:57:41,686 INFO L231 Difference]: Finished difference. Result has 52 places, 94 transitions, 466 flow [2023-11-17 15:57:41,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1744, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=466, PETRI_PLACES=52, PETRI_TRANSITIONS=94} [2023-11-17 15:57:41,688 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 8 predicate places. [2023-11-17 15:57:41,688 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 94 transitions, 466 flow [2023-11-17 15:57:41,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 569.0) internal successors, (4552), 8 states have internal predecessors, (4552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:57:41,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:57:41,690 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2023-11-17 15:57:41,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-17 15:57:41,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:57:41,903 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:57:41,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:57:41,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1017583586, now seen corresponding path program 2 times [2023-11-17 15:57:41,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:57:41,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375101017] [2023-11-17 15:57:41,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:57:41,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:57:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:57:42,529 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-17 15:57:42,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:57:42,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375101017] [2023-11-17 15:57:42,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375101017] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:57:42,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885207371] [2023-11-17 15:57:42,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 15:57:42,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:57:42,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:57:42,537 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) [2023-11-17 15:57:42,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-17 15:57:43,665 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-17 15:57:43,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 15:57:43,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-17 15:57:43,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 15:57:46,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 15:57:46,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 15:57:46,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 15:57:46,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 15:57:46,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 15:57:46,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 15:57:46,880 INFO L349 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2023-11-17 15:57:46,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 474 treesize of output 408 Received shutdown request... [2023-11-17 16:05:01,150 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-17 16:05:01,150 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-17 16:05:01,217 WARN L235 SmtUtils]: Removed 619 from assertion stack [2023-11-17 16:05:01,219 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-17 16:05:01,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-17 16:05:01,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 16:05:01,425 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 65 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 7694 for 428078ms.. [2023-11-17 16:05:01,426 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-17 16:05:01,426 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-17 16:05:01,427 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-17 16:05:01,427 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-11-17 16:05:01,430 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 16:05:01,430 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 16:05:01,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 04:05:01 BasicIcfg [2023-11-17 16:05:01,432 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 16:05:01,432 INFO L158 Benchmark]: Toolchain (without parser) took 533716.90ms. Allocated memory was 183.5MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 147.4MB in the beginning and 705.1MB in the end (delta: -557.7MB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2023-11-17 16:05:01,432 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 183.5MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 16:05:01,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.53ms. Allocated memory is still 183.5MB. Free memory was 147.4MB in the beginning and 121.6MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-11-17 16:05:01,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 130.58ms. Allocated memory is still 183.5MB. Free memory was 121.6MB in the beginning and 109.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-11-17 16:05:01,433 INFO L158 Benchmark]: Boogie Preprocessor took 109.27ms. Allocated memory is still 183.5MB. Free memory was 109.6MB in the beginning and 98.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-11-17 16:05:01,434 INFO L158 Benchmark]: RCFGBuilder took 4444.84ms. Allocated memory was 183.5MB in the beginning and 367.0MB in the end (delta: 183.5MB). Free memory was 98.8MB in the beginning and 143.4MB in the end (delta: -44.7MB). Peak memory consumption was 159.5MB. Max. memory is 8.0GB. [2023-11-17 16:05:01,434 INFO L158 Benchmark]: TraceAbstraction took 528614.16ms. Allocated memory was 367.0MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 142.4MB in the beginning and 705.1MB in the end (delta: -562.7MB). Peak memory consumption was 853.0MB. Max. memory is 8.0GB. [2023-11-17 16:05:01,435 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 183.5MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 410.53ms. Allocated memory is still 183.5MB. Free memory was 147.4MB in the beginning and 121.6MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 130.58ms. Allocated memory is still 183.5MB. Free memory was 121.6MB in the beginning and 109.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 109.27ms. Allocated memory is still 183.5MB. Free memory was 109.6MB in the beginning and 98.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * RCFGBuilder took 4444.84ms. Allocated memory was 183.5MB in the beginning and 367.0MB in the end (delta: 183.5MB). Free memory was 98.8MB in the beginning and 143.4MB in the end (delta: -44.7MB). Peak memory consumption was 159.5MB. Max. memory is 8.0GB. * TraceAbstraction took 528614.16ms. Allocated memory was 367.0MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 142.4MB in the beginning and 705.1MB in the end (delta: -562.7MB). Peak memory consumption was 853.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 78.5s, 719 PlacesBefore, 44 PlacesAfterwards, 788 TransitionsBefore, 58 TransitionsAfterwards, 22848 CoEnabledTransitionPairs, 8 FixpointIterations, 533 TrivialSequentialCompositions, 189 ConcurrentSequentialCompositions, 123 TrivialYvCompositions, 42 ConcurrentYvCompositions, 55 ChoiceCompositions, 942 TotalNumberOfCompositions, 24461 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21992, independent: 21948, independent conditional: 0, independent unconditional: 21948, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14722, independent: 14682, independent conditional: 0, independent unconditional: 14682, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14722, independent: 14682, independent conditional: 0, independent unconditional: 14682, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2410, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 388, dependent conditional: 0, dependent unconditional: 388, unknown: 2022, unknown conditional: 0, unknown unconditional: 2022] ], Cache Queries: [ total: 21992, independent: 7266, independent conditional: 0, independent unconditional: 7266, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 14724, unknown conditional: 0, unknown unconditional: 14724] , Statistics on independence cache: Total cache size (in pairs): 121, Positive cache size: 120, Positive conditional cache size: 0, Positive unconditional cache size: 120, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1 - TimeoutResultAtElement [Line: 341]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 65 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 7694 for 428078ms.. - TimeoutResultAtElement [Line: 333]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 65 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 7694 for 428078ms.. - TimeoutResultAtElement [Line: 334]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 65 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 7694 for 428078ms.. - TimeoutResultAtElement [Line: 335]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 65 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 7694 for 428078ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 868 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 528.1s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 78.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 94 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 522 IncrementalHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 94 mSolverCounterUnsat, 0 mSDtfsCounter, 522 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=466occurred in iteration=4, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 SizeOfPredicates, 1 NumberOfNonLiveVariables, 610 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 42/45 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown