/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 --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_86-lists_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 11:42:16,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 11:42:16,301 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 11:42:16,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 11:42:16,321 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 11:42:16,321 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 11:42:16,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 11:42:16,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 11:42:16,322 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 11:42:16,322 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 11:42:16,323 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 11:42:16,323 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 11:42:16,323 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 11:42:16,323 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 11:42:16,324 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 11:42:16,324 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 11:42:16,324 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 11:42:16,324 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 11:42:16,325 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 11:42:16,325 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 11:42:16,325 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 11:42:16,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 11:42:16,326 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 11:42:16,326 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 11:42:16,326 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 11:42:16,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:42:16,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 11:42:16,327 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 11:42:16,327 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 11:42:16,328 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 11:42:16,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 11:42:16,328 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 11:42:16,328 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true [2023-11-17 11:42:16,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 11:42:16,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 11:42:16,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 11:42:16,476 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 11:42:16,476 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 11:42:16,477 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_86-lists_racing.i [2023-11-17 11:42:17,542 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 11:42:17,803 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 11:42:17,804 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_86-lists_racing.i [2023-11-17 11:42:17,817 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/127aa1248/c04725afcb2746a0a8565a578243f5aa/FLAGcff239f53 [2023-11-17 11:42:17,840 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/127aa1248/c04725afcb2746a0a8565a578243f5aa [2023-11-17 11:42:17,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 11:42:17,845 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 11:42:17,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 11:42:17,847 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 11:42:17,851 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 11:42:17,851 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:42:17" (1/1) ... [2023-11-17 11:42:17,852 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa7d934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:42:17, skipping insertion in model container [2023-11-17 11:42:17,852 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:42:17" (1/1) ... [2023-11-17 11:42:17,901 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 11:42:18,260 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_86-lists_racing.i[47038,47051] [2023-11-17 11:42:18,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:42:18,351 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 11:42:18,370 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_86-lists_racing.i[47038,47051] [2023-11-17 11:42:18,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:42:18,417 INFO L206 MainTranslator]: Completed translation [2023-11-17 11:42:18,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:42:18 WrapperNode [2023-11-17 11:42:18,418 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 11:42:18,418 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 11:42:18,419 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 11:42:18,419 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 11:42:18,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:42:18" (1/1) ... [2023-11-17 11:42:18,441 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:42:18" (1/1) ... [2023-11-17 11:42:18,470 INFO L138 Inliner]: procedures = 279, calls = 69, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 266 [2023-11-17 11:42:18,470 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 11:42:18,471 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 11:42:18,471 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 11:42:18,471 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 11:42:18,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:42:18" (1/1) ... [2023-11-17 11:42:18,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:42:18" (1/1) ... [2023-11-17 11:42:18,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:42:18" (1/1) ... [2023-11-17 11:42:18,483 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:42:18" (1/1) ... [2023-11-17 11:42:18,497 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:42:18" (1/1) ... [2023-11-17 11:42:18,501 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:42:18" (1/1) ... [2023-11-17 11:42:18,538 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:42:18" (1/1) ... [2023-11-17 11:42:18,540 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:42:18" (1/1) ... [2023-11-17 11:42:18,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 11:42:18,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 11:42:18,543 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 11:42:18,543 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 11:42:18,544 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:42:18" (1/1) ... [2023-11-17 11:42:18,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:42:18,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:42:18,619 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 11:42:18,686 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 11:42:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 11:42:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-17 11:42:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-17 11:42:18,706 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-17 11:42:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 11:42:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 11:42:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 11:42:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-17 11:42:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-17 11:42:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 11:42:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 11:42:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 11:42:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 11:42:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-17 11:42:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 11:42:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 11:42:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 11:42:18,708 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 11:42:18,867 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 11:42:18,869 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 11:42:19,124 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 11:42:19,329 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 11:42:19,329 INFO L307 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-17 11:42:19,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:42:19 BoogieIcfgContainer [2023-11-17 11:42:19,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 11:42:19,332 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 11:42:19,332 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 11:42:19,334 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 11:42:19,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:42:17" (1/3) ... [2023-11-17 11:42:19,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a3bb67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:42:19, skipping insertion in model container [2023-11-17 11:42:19,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:42:18" (2/3) ... [2023-11-17 11:42:19,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a3bb67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:42:19, skipping insertion in model container [2023-11-17 11:42:19,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:42:19" (3/3) ... [2023-11-17 11:42:19,336 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_86-lists_racing.i [2023-11-17 11:42:19,349 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 11:42:19,350 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 11:42:19,350 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 11:42:19,403 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-17 11:42:19,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 77 transitions, 174 flow [2023-11-17 11:42:19,463 INFO L124 PetriNetUnfolderBase]: 37/157 cut-off events. [2023-11-17 11:42:19,463 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-17 11:42:19,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 157 events. 37/157 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 579 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 80. Up to 8 conditions per place. [2023-11-17 11:42:19,468 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 77 transitions, 174 flow [2023-11-17 11:42:19,471 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 75 transitions, 164 flow [2023-11-17 11:42:19,473 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 11:42:19,482 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 75 transitions, 164 flow [2023-11-17 11:42:19,484 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 75 transitions, 164 flow [2023-11-17 11:42:19,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 75 transitions, 164 flow [2023-11-17 11:42:19,504 INFO L124 PetriNetUnfolderBase]: 33/151 cut-off events. [2023-11-17 11:42:19,505 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-17 11:42:19,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 151 events. 33/151 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 542 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 74. Up to 8 conditions per place. [2023-11-17 11:42:19,507 INFO L119 LiptonReduction]: Number of co-enabled transitions 1796 [2023-11-17 11:42:24,767 INFO L134 LiptonReduction]: Checked pairs total: 6132 [2023-11-17 11:42:24,768 INFO L136 LiptonReduction]: Total number of compositions: 38 [2023-11-17 11:42:24,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 11:42:24,803 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;@558d87f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 11:42:24,803 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-17 11:42:24,808 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 11:42:24,808 INFO L124 PetriNetUnfolderBase]: 1/21 cut-off events. [2023-11-17 11:42:24,809 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:42:24,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:42:24,825 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-17 11:42:24,826 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 11:42:24,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:42:24,829 INFO L85 PathProgramCache]: Analyzing trace with hash 870970144, now seen corresponding path program 1 times [2023-11-17 11:42:24,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:42:24,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578291638] [2023-11-17 11:42:24,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:42:24,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:42:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:42:25,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 11:42:25,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:42:25,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578291638] [2023-11-17 11:42:25,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578291638] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:42:25,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:42:25,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:42:25,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997389732] [2023-11-17 11:42:25,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:42:25,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:42:25,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:42:25,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:42:25,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:42:25,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 115 [2023-11-17 11:42:25,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 59 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 11:42:25,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:42:25,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 115 [2023-11-17 11:42:25,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:42:25,545 INFO L124 PetriNetUnfolderBase]: 1655/2775 cut-off events. [2023-11-17 11:42:25,545 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2023-11-17 11:42:25,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5503 conditions, 2775 events. 1655/2775 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 13750 event pairs, 1512 based on Foata normal form. 100/2340 useless extension candidates. Maximal degree in co-relation 4556. Up to 2668 conditions per place. [2023-11-17 11:42:25,557 INFO L140 encePairwiseOnDemand]: 100/115 looper letters, 42 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2023-11-17 11:42:25,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 48 transitions, 198 flow [2023-11-17 11:42:25,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:42:25,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:42:25,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2023-11-17 11:42:25,565 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2956521739130435 [2023-11-17 11:42:25,566 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 102 transitions. [2023-11-17 11:42:25,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 102 transitions. [2023-11-17 11:42:25,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:42:25,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 102 transitions. [2023-11-17 11:42:25,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:42:25,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 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 11:42:25,571 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 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 11:42:25,573 INFO L175 Difference]: Start difference. First operand has 47 places, 59 transitions, 132 flow. Second operand 3 states and 102 transitions. [2023-11-17 11:42:25,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 48 transitions, 198 flow [2023-11-17 11:42:25,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 48 transitions, 198 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 11:42:25,577 INFO L231 Difference]: Finished difference. Result has 50 places, 48 transitions, 120 flow [2023-11-17 11:42:25,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=50, PETRI_TRANSITIONS=48} [2023-11-17 11:42:25,580 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 3 predicate places. [2023-11-17 11:42:25,581 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 48 transitions, 120 flow [2023-11-17 11:42:25,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 11:42:25,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:42:25,581 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-17 11:42:25,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 11:42:25,581 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 11:42:25,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:42:25,582 INFO L85 PathProgramCache]: Analyzing trace with hash 170646849, now seen corresponding path program 1 times [2023-11-17 11:42:25,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:42:25,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264776267] [2023-11-17 11:42:25,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:42:25,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:42:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:42:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 11:42:25,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:42:25,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264776267] [2023-11-17 11:42:25,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264776267] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:42:25,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317785619] [2023-11-17 11:42:25,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:42:25,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:42:25,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:42:25,670 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 11:42:25,702 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 11:42:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:42:25,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-17 11:42:25,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:42:25,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 11:42:25,806 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:42:25,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 11:42:25,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317785619] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:42:25,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:42:25,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-17 11:42:25,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299810694] [2023-11-17 11:42:25,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:42:25,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 11:42:25,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:42:25,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 11:42:25,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-17 11:42:25,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 115 [2023-11-17 11:42:25,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 48 transitions, 120 flow. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 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 11:42:25,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:42:25,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 115 [2023-11-17 11:42:25,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:42:26,155 INFO L124 PetriNetUnfolderBase]: 1655/2778 cut-off events. [2023-11-17 11:42:26,155 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2023-11-17 11:42:26,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5519 conditions, 2778 events. 1655/2778 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 13747 event pairs, 1512 based on Foata normal form. 0/2243 useless extension candidates. Maximal degree in co-relation 5506. Up to 2668 conditions per place. [2023-11-17 11:42:26,166 INFO L140 encePairwiseOnDemand]: 112/115 looper letters, 42 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2023-11-17 11:42:26,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 51 transitions, 226 flow [2023-11-17 11:42:26,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 11:42:26,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-17 11:42:26,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 140 transitions. [2023-11-17 11:42:26,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2028985507246377 [2023-11-17 11:42:26,172 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 140 transitions. [2023-11-17 11:42:26,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 140 transitions. [2023-11-17 11:42:26,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:42:26,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 140 transitions. [2023-11-17 11:42:26,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 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 11:42:26,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 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 11:42:26,180 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 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 11:42:26,180 INFO L175 Difference]: Start difference. First operand has 50 places, 48 transitions, 120 flow. Second operand 6 states and 140 transitions. [2023-11-17 11:42:26,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 51 transitions, 226 flow [2023-11-17 11:42:26,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 51 transitions, 222 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-17 11:42:26,187 INFO L231 Difference]: Finished difference. Result has 57 places, 51 transitions, 152 flow [2023-11-17 11:42:26,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=152, PETRI_PLACES=57, PETRI_TRANSITIONS=51} [2023-11-17 11:42:26,188 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 10 predicate places. [2023-11-17 11:42:26,188 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 152 flow [2023-11-17 11:42:26,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 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 11:42:26,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:42:26,188 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2023-11-17 11:42:26,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-17 11:42:26,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:42:26,396 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 11:42:26,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:42:26,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1440484512, now seen corresponding path program 2 times [2023-11-17 11:42:26,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:42:26,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730071189] [2023-11-17 11:42:26,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:42:26,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:42:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:42:26,586 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 11:42:26,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:42:26,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730071189] [2023-11-17 11:42:26,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730071189] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:42:26,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009316280] [2023-11-17 11:42:26,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 11:42:26,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:42:26,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:42:26,601 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 11:42:26,632 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 11:42:26,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 11:42:26,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:42:26,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-17 11:42:26,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:42:26,751 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 11:42:26,752 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:42:26,789 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 11:42:26,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009316280] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:42:26,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:42:26,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-17 11:42:26,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667639007] [2023-11-17 11:42:26,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:42:26,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-17 11:42:26,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:42:26,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-17 11:42:26,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-17 11:42:26,791 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 115 [2023-11-17 11:42:26,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 152 flow. Second operand has 13 states, 13 states have (on average 16.307692307692307) internal successors, (212), 13 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:42:26,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:42:26,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 115 [2023-11-17 11:42:26,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:42:27,118 INFO L124 PetriNetUnfolderBase]: 1655/2784 cut-off events. [2023-11-17 11:42:27,118 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2023-11-17 11:42:27,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5556 conditions, 2784 events. 1655/2784 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 13729 event pairs, 1512 based on Foata normal form. 6/2256 useless extension candidates. Maximal degree in co-relation 5497. Up to 2668 conditions per place. [2023-11-17 11:42:27,128 INFO L140 encePairwiseOnDemand]: 112/115 looper letters, 42 selfloop transitions, 11 changer transitions 0/57 dead transitions. [2023-11-17 11:42:27,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 57 transitions, 294 flow [2023-11-17 11:42:27,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-17 11:42:27,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-17 11:42:27,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 239 transitions. [2023-11-17 11:42:27,130 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.17318840579710146 [2023-11-17 11:42:27,130 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 239 transitions. [2023-11-17 11:42:27,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 239 transitions. [2023-11-17 11:42:27,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:42:27,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 239 transitions. [2023-11-17 11:42:27,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 19.916666666666668) internal successors, (239), 12 states have internal predecessors, (239), 0 states have call successors, (0), 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 11:42:27,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 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 11:42:27,133 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 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 11:42:27,134 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 152 flow. Second operand 12 states and 239 transitions. [2023-11-17 11:42:27,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 57 transitions, 294 flow [2023-11-17 11:42:27,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 57 transitions, 280 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-17 11:42:27,135 INFO L231 Difference]: Finished difference. Result has 73 places, 57 transitions, 222 flow [2023-11-17 11:42:27,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=222, PETRI_PLACES=73, PETRI_TRANSITIONS=57} [2023-11-17 11:42:27,136 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 26 predicate places. [2023-11-17 11:42:27,136 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 57 transitions, 222 flow [2023-11-17 11:42:27,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 16.307692307692307) internal successors, (212), 13 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:42:27,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:42:27,137 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1] [2023-11-17 11:42:27,156 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 11:42:27,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-17 11:42:27,343 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 11:42:27,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:42:27,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1747646400, now seen corresponding path program 3 times [2023-11-17 11:42:27,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:42:27,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455664615] [2023-11-17 11:42:27,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:42:27,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:42:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:42:27,636 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 11:42:27,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:42:27,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455664615] [2023-11-17 11:42:27,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455664615] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:42:27,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542000098] [2023-11-17 11:42:27,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-17 11:42:27,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:42:27,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:42:27,638 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) [2023-11-17 11:42:27,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-17 11:45:18,261 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-17 11:45:18,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:45:18,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-17 11:45:18,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:45:18,322 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 11:45:18,322 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:45:18,488 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 11:45:18,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542000098] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:45:18,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:45:18,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-11-17 11:45:18,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282852264] [2023-11-17 11:45:18,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:45:18,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-17 11:45:18,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:45:18,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-17 11:45:18,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-17 11:45:18,494 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 115 [2023-11-17 11:45:18,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 57 transitions, 222 flow. Second operand has 25 states, 25 states have (on average 16.16) internal successors, (404), 25 states have internal predecessors, (404), 0 states have call successors, (0), 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 11:45:18,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:45:18,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 115 [2023-11-17 11:45:18,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:45:18,906 INFO L124 PetriNetUnfolderBase]: 1655/2796 cut-off events. [2023-11-17 11:45:18,907 INFO L125 PetriNetUnfolderBase]: For 577/577 co-relation queries the response was YES. [2023-11-17 11:45:18,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5640 conditions, 2796 events. 1655/2796 cut-off events. For 577/577 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 13729 event pairs, 1512 based on Foata normal form. 12/2274 useless extension candidates. Maximal degree in co-relation 5503. Up to 2668 conditions per place. [2023-11-17 11:45:18,919 INFO L140 encePairwiseOnDemand]: 112/115 looper letters, 42 selfloop transitions, 23 changer transitions 0/69 dead transitions. [2023-11-17 11:45:18,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 69 transitions, 448 flow [2023-11-17 11:45:18,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-17 11:45:18,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-17 11:45:18,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 437 transitions. [2023-11-17 11:45:18,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.15833333333333333 [2023-11-17 11:45:18,924 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 437 transitions. [2023-11-17 11:45:18,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 437 transitions. [2023-11-17 11:45:18,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:45:18,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 437 transitions. [2023-11-17 11:45:18,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 18.208333333333332) internal successors, (437), 24 states have internal predecessors, (437), 0 states have call successors, (0), 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 11:45:18,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 115.0) internal successors, (2875), 25 states have internal predecessors, (2875), 0 states have call successors, (0), 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 11:45:18,930 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 115.0) internal successors, (2875), 25 states have internal predecessors, (2875), 0 states have call successors, (0), 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 11:45:18,930 INFO L175 Difference]: Start difference. First operand has 73 places, 57 transitions, 222 flow. Second operand 24 states and 437 transitions. [2023-11-17 11:45:18,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 69 transitions, 448 flow [2023-11-17 11:45:18,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 69 transitions, 376 flow, removed 31 selfloop flow, removed 5 redundant places. [2023-11-17 11:45:18,935 INFO L231 Difference]: Finished difference. Result has 103 places, 69 transitions, 342 flow [2023-11-17 11:45:18,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=342, PETRI_PLACES=103, PETRI_TRANSITIONS=69} [2023-11-17 11:45:18,937 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 56 predicate places. [2023-11-17 11:45:18,937 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 69 transitions, 342 flow [2023-11-17 11:45:18,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 16.16) internal successors, (404), 25 states have internal predecessors, (404), 0 states have call successors, (0), 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 11:45:18,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:45:18,937 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 2, 1, 1, 1, 1, 1] [2023-11-17 11:45:18,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-17 11:45:19,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:45:19,145 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 11:45:19,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:45:19,146 INFO L85 PathProgramCache]: Analyzing trace with hash 486058112, now seen corresponding path program 4 times [2023-11-17 11:45:19,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:45:19,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243375637] [2023-11-17 11:45:19,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:45:19,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:45:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:45:20,054 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 11:45:20,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:45:20,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243375637] [2023-11-17 11:45:20,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243375637] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:45:20,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264490429] [2023-11-17 11:45:20,055 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-17 11:45:20,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:45:20,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:45:20,056 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) [2023-11-17 11:45:20,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-17 11:45:20,408 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-17 11:45:20,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:45:20,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-17 11:45:20,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:45:20,447 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 11:45:20,447 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:45:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 11:45:21,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264490429] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:45:21,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:45:21,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2023-11-17 11:45:21,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015568866] [2023-11-17 11:45:21,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:45:21,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-11-17 11:45:21,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:45:21,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-11-17 11:45:21,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-11-17 11:45:21,091 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 115 [2023-11-17 11:45:21,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 69 transitions, 342 flow. Second operand has 49 states, 49 states have (on average 16.081632653061224) internal successors, (788), 49 states have internal predecessors, (788), 0 states have call successors, (0), 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 11:45:21,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:45:21,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 115 [2023-11-17 11:45:21,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:45:21,652 INFO L124 PetriNetUnfolderBase]: 1655/2820 cut-off events. [2023-11-17 11:45:21,652 INFO L125 PetriNetUnfolderBase]: For 5347/5347 co-relation queries the response was YES. [2023-11-17 11:45:21,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5784 conditions, 2820 events. 1655/2820 cut-off events. For 5347/5347 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 13729 event pairs, 1512 based on Foata normal form. 24/2310 useless extension candidates. Maximal degree in co-relation 5515. Up to 2668 conditions per place. [2023-11-17 11:45:21,663 INFO L140 encePairwiseOnDemand]: 112/115 looper letters, 42 selfloop transitions, 47 changer transitions 0/93 dead transitions. [2023-11-17 11:45:21,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 93 transitions, 712 flow [2023-11-17 11:45:21,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-17 11:45:21,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-11-17 11:45:21,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 833 transitions. [2023-11-17 11:45:21,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.15090579710144927 [2023-11-17 11:45:21,668 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 833 transitions. [2023-11-17 11:45:21,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 833 transitions. [2023-11-17 11:45:21,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:45:21,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 833 transitions. [2023-11-17 11:45:21,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 17.354166666666668) internal successors, (833), 48 states have internal predecessors, (833), 0 states have call successors, (0), 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 11:45:21,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 115.0) internal successors, (5635), 49 states have internal predecessors, (5635), 0 states have call successors, (0), 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 11:45:21,677 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 115.0) internal successors, (5635), 49 states have internal predecessors, (5635), 0 states have call successors, (0), 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 11:45:21,677 INFO L175 Difference]: Start difference. First operand has 103 places, 69 transitions, 342 flow. Second operand 48 states and 833 transitions. [2023-11-17 11:45:21,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 93 transitions, 712 flow [2023-11-17 11:45:21,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 93 transitions, 568 flow, removed 61 selfloop flow, removed 11 redundant places. [2023-11-17 11:45:21,683 INFO L231 Difference]: Finished difference. Result has 163 places, 93 transitions, 582 flow [2023-11-17 11:45:21,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=582, PETRI_PLACES=163, PETRI_TRANSITIONS=93} [2023-11-17 11:45:21,685 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 116 predicate places. [2023-11-17 11:45:21,685 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 93 transitions, 582 flow [2023-11-17 11:45:21,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 16.081632653061224) internal successors, (788), 49 states have internal predecessors, (788), 0 states have call successors, (0), 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 11:45:21,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:45:21,686 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 2, 1, 1, 1, 1, 1] [2023-11-17 11:45:21,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-17 11:45:21,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:45:21,905 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 11:45:21,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:45:21,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1275418112, now seen corresponding path program 5 times [2023-11-17 11:45:21,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:45:21,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183711531] [2023-11-17 11:45:21,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:45:21,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:45:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:45:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 11:45:24,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:45:24,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183711531] [2023-11-17 11:45:24,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183711531] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:45:24,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277141093] [2023-11-17 11:45:24,678 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-17 11:45:24,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:45:24,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:45:24,679 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) [2023-11-17 11:45:24,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Received shutdown request... [2023-11-17 11:52:01,578 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 11:52:01,596 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-17 11:52:02,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-11-17 11:52:02,797 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2023-11-17 11:52:02,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2023-11-17 11:52:02,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 11:52:02,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-17 11:52:02,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2023-11-17 11:52:02,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627708293] [2023-11-17 11:52:02,818 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-17 11:52:02,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-11-17 11:52:02,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:52:02,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-11-17 11:52:02,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-11-17 11:52:02,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 115 [2023-11-17 11:52:02,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 93 transitions, 582 flow. Second operand has 49 states, 49 states have (on average 16.040816326530614) internal successors, (786), 49 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:52:02,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:52:02,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 115 [2023-11-17 11:52:02,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:52:02,823 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-11-17 11:52:02,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 11:52:02,823 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-11-17 11:52:02,824 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-11-17 11:52:02,824 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-17 11:52:02,829 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-11-17 11:52:02,829 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1] [2023-11-17 11:52:02,833 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 11:52:02,836 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 11:52:02,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 11:52:02 BasicIcfg [2023-11-17 11:52:02,840 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 11:52:02,842 INFO L158 Benchmark]: Toolchain (without parser) took 584995.68ms. Allocated memory was 210.8MB in the beginning and 377.5MB in the end (delta: 166.7MB). Free memory was 165.1MB in the beginning and 93.9MB in the end (delta: 71.2MB). Peak memory consumption was 240.2MB. Max. memory is 8.0GB. [2023-11-17 11:52:02,842 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 210.8MB. Free memory is still 166.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:52:02,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.58ms. Allocated memory is still 210.8MB. Free memory was 164.8MB in the beginning and 129.1MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-11-17 11:52:02,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.00ms. Allocated memory is still 210.8MB. Free memory was 129.1MB in the beginning and 126.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-11-17 11:52:02,844 INFO L158 Benchmark]: Boogie Preprocessor took 71.58ms. Allocated memory is still 210.8MB. Free memory was 126.0MB in the beginning and 184.1MB in the end (delta: -58.1MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. [2023-11-17 11:52:02,844 INFO L158 Benchmark]: RCFGBuilder took 787.29ms. Allocated memory is still 210.8MB. Free memory was 184.1MB in the beginning and 114.9MB in the end (delta: 69.2MB). Peak memory consumption was 70.3MB. Max. memory is 8.0GB. [2023-11-17 11:52:02,846 INFO L158 Benchmark]: TraceAbstraction took 583508.26ms. Allocated memory was 210.8MB in the beginning and 377.5MB in the end (delta: 166.7MB). Free memory was 113.9MB in the beginning and 93.9MB in the end (delta: 20.0MB). Peak memory consumption was 187.2MB. Max. memory is 8.0GB. [2023-11-17 11:52:02,847 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 210.8MB. Free memory is still 166.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 570.58ms. Allocated memory is still 210.8MB. Free memory was 164.8MB in the beginning and 129.1MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.00ms. Allocated memory is still 210.8MB. Free memory was 129.1MB in the beginning and 126.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 71.58ms. Allocated memory is still 210.8MB. Free memory was 126.0MB in the beginning and 184.1MB in the end (delta: -58.1MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. * RCFGBuilder took 787.29ms. Allocated memory is still 210.8MB. Free memory was 184.1MB in the beginning and 114.9MB in the end (delta: 69.2MB). Peak memory consumption was 70.3MB. Max. memory is 8.0GB. * TraceAbstraction took 583508.26ms. Allocated memory was 210.8MB in the beginning and 377.5MB in the end (delta: 166.7MB). Free memory was 113.9MB in the beginning and 93.9MB in the end (delta: 20.0MB). Peak memory consumption was 187.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 63 PlacesBefore, 47 PlacesAfterwards, 75 TransitionsBefore, 59 TransitionsAfterwards, 1796 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 0 ChoiceCompositions, 38 TotalNumberOfCompositions, 6132 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3416, independent: 3247, independent conditional: 0, independent unconditional: 3247, dependent: 146, dependent conditional: 0, dependent unconditional: 146, unknown: 23, unknown conditional: 0, unknown unconditional: 23] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1076, independent: 1032, independent conditional: 0, independent unconditional: 1032, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1076, independent: 990, independent conditional: 0, independent unconditional: 990, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 86, independent: 42, independent conditional: 0, independent unconditional: 42, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4671, independent: 69, independent conditional: 0, independent unconditional: 69, dependent: 197, dependent conditional: 0, dependent unconditional: 197, unknown: 4405, unknown conditional: 0, unknown unconditional: 4405] ], Cache Queries: [ total: 3416, independent: 2215, independent conditional: 0, independent unconditional: 2215, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 1095, unknown conditional: 0, unknown unconditional: 1095] , Statistics on independence cache: Total cache size (in pairs): 409, Positive cache size: 386, Positive conditional cache size: 0, Positive unconditional cache size: 386, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 4, Unknown conditional cache size: 0, Unknown unconditional cache size: 4 - TimeoutResultAtElement [Line: 1053]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 999]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1054]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 101 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 583.4s, OverallIterations: 6, TraceHistogramMax: 46, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 750 IncrementalHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 750 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=582occurred in iteration=5, InterpolantAutomatonStates: 93, 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, 170.8s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 241 ConstructedInterpolants, 0 QuantifiedInterpolants, 583 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2427 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 14 InterpolantComputations, 1 PerfectInterpolantSequences, 28/2066 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