/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 00:50:13,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 00:50:13,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 00:50:13,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-28 00:50:14,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 00:50:14,016 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 00:50:14,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 00:50:14,017 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 00:50:14,017 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 00:50:14,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 00:50:14,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 00:50:14,018 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 00:50:14,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 00:50:14,018 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 00:50:14,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 00:50:14,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 00:50:14,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 00:50:14,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 00:50:14,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 00:50:14,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 00:50:14,018 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 00:50:14,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 00:50:14,019 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 00:50:14,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 00:50:14,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 00:50:14,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 00:50:14,019 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 00:50:14,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 00:50:14,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:50:14,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 00:50:14,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 00:50:14,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 00:50:14,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 00:50:14,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 00:50:14,020 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 00:50:14,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 00:50:14,020 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 00:50:14,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 00:50:14,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 00:50:14,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 00:50:14,219 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 00:50:14,219 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 00:50:14,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2023-01-28 00:50:15,183 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 00:50:15,415 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 00:50:15,416 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2023-01-28 00:50:15,429 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/990103eaa/0f9c53c4af0a4404becd809097411d80/FLAGa7a60768c [2023-01-28 00:50:15,750 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/990103eaa/0f9c53c4af0a4404becd809097411d80 [2023-01-28 00:50:15,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 00:50:15,753 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 00:50:15,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 00:50:15,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 00:50:15,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 00:50:15,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:50:15" (1/1) ... [2023-01-28 00:50:15,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36264db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:50:15, skipping insertion in model container [2023-01-28 00:50:15,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:50:15" (1/1) ... [2023-01-28 00:50:15,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 00:50:15,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 00:50:16,152 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2023-01-28 00:50:16,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:50:16,186 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 00:50:16,223 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2023-01-28 00:50:16,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:50:16,314 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 00:50:16,315 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 00:50:16,319 INFO L208 MainTranslator]: Completed translation [2023-01-28 00:50:16,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:50:16 WrapperNode [2023-01-28 00:50:16,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 00:50:16,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 00:50:16,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 00:50:16,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 00:50:16,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:50:16" (1/1) ... [2023-01-28 00:50:16,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:50:16" (1/1) ... [2023-01-28 00:50:16,356 INFO L138 Inliner]: procedures = 482, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2023-01-28 00:50:16,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 00:50:16,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 00:50:16,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 00:50:16,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 00:50:16,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:50:16" (1/1) ... [2023-01-28 00:50:16,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:50:16" (1/1) ... [2023-01-28 00:50:16,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:50:16" (1/1) ... [2023-01-28 00:50:16,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:50:16" (1/1) ... [2023-01-28 00:50:16,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:50:16" (1/1) ... [2023-01-28 00:50:16,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:50:16" (1/1) ... [2023-01-28 00:50:16,376 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:50:16" (1/1) ... [2023-01-28 00:50:16,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:50:16" (1/1) ... [2023-01-28 00:50:16,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 00:50:16,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 00:50:16,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 00:50:16,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 00:50:16,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:50:16" (1/1) ... [2023-01-28 00:50:16,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:50:16,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 00:50:16,421 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) [2023-01-28 00:50:16,429 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 [2023-01-28 00:50:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 00:50:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 00:50:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 00:50:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 00:50:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 00:50:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 00:50:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-28 00:50:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 00:50:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 00:50:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 00:50:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 00:50:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 00:50:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 00:50:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 00:50:16,449 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 00:50:16,642 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 00:50:16,645 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 00:50:16,765 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 00:50:16,782 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 00:50:16,782 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 00:50:16,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:50:16 BoogieIcfgContainer [2023-01-28 00:50:16,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 00:50:16,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 00:50:16,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 00:50:16,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 00:50:16,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 12:50:15" (1/3) ... [2023-01-28 00:50:16,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee9077d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:50:16, skipping insertion in model container [2023-01-28 00:50:16,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:50:16" (2/3) ... [2023-01-28 00:50:16,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee9077d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:50:16, skipping insertion in model container [2023-01-28 00:50:16,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:50:16" (3/3) ... [2023-01-28 00:50:16,788 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2023-01-28 00:50:16,800 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 00:50:16,800 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-01-28 00:50:16,800 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 00:50:16,860 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-28 00:50:16,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 95 transitions, 198 flow [2023-01-28 00:50:16,940 INFO L130 PetriNetUnfolder]: 4/106 cut-off events. [2023-01-28 00:50:16,940 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 00:50:16,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 106 events. 4/106 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2023-01-28 00:50:16,943 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 95 transitions, 198 flow [2023-01-28 00:50:16,949 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 78 transitions, 162 flow [2023-01-28 00:50:16,952 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:50:16,973 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 162 flow [2023-01-28 00:50:16,975 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 78 transitions, 162 flow [2023-01-28 00:50:16,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 162 flow [2023-01-28 00:50:16,984 INFO L130 PetriNetUnfolder]: 1/78 cut-off events. [2023-01-28 00:50:16,984 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 00:50:16,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 78 events. 1/78 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-01-28 00:50:16,990 INFO L119 LiptonReduction]: Number of co-enabled transitions 182 [2023-01-28 00:50:19,397 INFO L134 LiptonReduction]: Checked pairs total: 239 [2023-01-28 00:50:19,397 INFO L136 LiptonReduction]: Total number of compositions: 76 [2023-01-28 00:50:19,423 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 00:50:19,427 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=LoopsAndPotentialCycles, 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;@42c8c65b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:50:19,427 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-28 00:50:19,428 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-01-28 00:50:19,428 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:50:19,428 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:50:19,428 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-01-28 00:50:19,429 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 00:50:19,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:50:19,432 INFO L85 PathProgramCache]: Analyzing trace with hash 353, now seen corresponding path program 1 times [2023-01-28 00:50:19,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:50:19,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994923131] [2023-01-28 00:50:19,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:50:19,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:50:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:50:19,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 00:50:19,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:50:19,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994923131] [2023-01-28 00:50:19,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994923131] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:50:19,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:50:19,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-01-28 00:50:19,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840128137] [2023-01-28 00:50:19,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:50:19,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-28 00:50:19,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:50:19,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-28 00:50:19,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-28 00:50:19,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 171 [2023-01-28 00:50:19,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 10 transitions, 26 flow. Second operand has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:50:19,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:50:19,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 171 [2023-01-28 00:50:19,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:50:19,632 INFO L130 PetriNetUnfolder]: 3/13 cut-off events. [2023-01-28 00:50:19,633 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 00:50:19,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 13 events. 3/13 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 16 event pairs, 3 based on Foata normal form. 1/12 useless extension candidates. Maximal degree in co-relation 20. Up to 14 conditions per place. [2023-01-28 00:50:19,634 INFO L137 encePairwiseOnDemand]: 168/171 looper letters, 5 selfloop transitions, 0 changer transitions 2/7 dead transitions. [2023-01-28 00:50:19,634 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 34 flow [2023-01-28 00:50:19,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-28 00:50:19,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-28 00:50:19,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 180 transitions. [2023-01-28 00:50:19,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2023-01-28 00:50:19,642 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 180 transitions. [2023-01-28 00:50:19,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 180 transitions. [2023-01-28 00:50:19,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:50:19,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 180 transitions. [2023-01-28 00:50:19,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 90.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:50:19,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:50:19,649 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:50:19,650 INFO L175 Difference]: Start difference. First operand has 14 places, 10 transitions, 26 flow. Second operand 2 states and 180 transitions. [2023-01-28 00:50:19,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 34 flow [2023-01-28 00:50:19,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 00:50:19,653 INFO L231 Difference]: Finished difference. Result has 10 places, 5 transitions, 11 flow [2023-01-28 00:50:19,654 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=11, PETRI_PLACES=10, PETRI_TRANSITIONS=5} [2023-01-28 00:50:19,656 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -4 predicate places. [2023-01-28 00:50:19,656 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 5 transitions, 11 flow [2023-01-28 00:50:19,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:50:19,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:50:19,656 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-01-28 00:50:19,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 00:50:19,657 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 00:50:19,657 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:50:19,657 INFO L85 PathProgramCache]: Analyzing trace with hash 10822535, now seen corresponding path program 1 times [2023-01-28 00:50:19,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:50:19,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925492437] [2023-01-28 00:50:19,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:50:19,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:50:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:50:19,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 00:50:19,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:50:19,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925492437] [2023-01-28 00:50:19,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925492437] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:50:19,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:50:19,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 00:50:19,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454705009] [2023-01-28 00:50:19,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:50:19,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 00:50:19,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:50:19,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 00:50:19,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 00:50:19,809 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 171 [2023-01-28 00:50:19,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 10 places, 5 transitions, 11 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:50:19,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:50:19,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 171 [2023-01-28 00:50:19,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:50:19,822 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2023-01-28 00:50:19,822 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:50:19,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 7 events. 0/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 2/9 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-01-28 00:50:19,823 INFO L137 encePairwiseOnDemand]: 168/171 looper letters, 3 selfloop transitions, 2 changer transitions 1/6 dead transitions. [2023-01-28 00:50:19,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 25 flow [2023-01-28 00:50:19,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 00:50:19,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 00:50:19,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2023-01-28 00:50:19,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4580896686159844 [2023-01-28 00:50:19,826 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 235 transitions. [2023-01-28 00:50:19,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 235 transitions. [2023-01-28 00:50:19,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:50:19,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 235 transitions. [2023-01-28 00:50:19,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:50:19,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:50:19,830 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:50:19,830 INFO L175 Difference]: Start difference. First operand has 10 places, 5 transitions, 11 flow. Second operand 3 states and 235 transitions. [2023-01-28 00:50:19,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 25 flow [2023-01-28 00:50:19,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 25 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 00:50:19,830 INFO L231 Difference]: Finished difference. Result has 11 places, 5 transitions, 19 flow [2023-01-28 00:50:19,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=11, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=19, PETRI_PLACES=11, PETRI_TRANSITIONS=5} [2023-01-28 00:50:19,831 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -3 predicate places. [2023-01-28 00:50:19,831 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 5 transitions, 19 flow [2023-01-28 00:50:19,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:50:19,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:50:19,832 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-28 00:50:19,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 00:50:19,832 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 00:50:19,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:50:19,832 INFO L85 PathProgramCache]: Analyzing trace with hash 335502616, now seen corresponding path program 1 times [2023-01-28 00:50:19,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:50:19,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808942068] [2023-01-28 00:50:19,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:50:19,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:50:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:50:19,870 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:50:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:50:19,912 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:50:19,912 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:50:19,913 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-28 00:50:19,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-01-28 00:50:19,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2023-01-28 00:50:19,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2023-01-28 00:50:19,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-01-28 00:50:19,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 00:50:19,916 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-01-28 00:50:19,920 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 00:50:19,920 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 00:50:19,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 12:50:19 BasicIcfg [2023-01-28 00:50:19,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 00:50:19,941 INFO L158 Benchmark]: Toolchain (without parser) took 4188.30ms. Allocated memory was 388.0MB in the beginning and 465.6MB in the end (delta: 77.6MB). Free memory was 354.5MB in the beginning and 363.4MB in the end (delta: -8.9MB). Peak memory consumption was 70.0MB. Max. memory is 16.0GB. [2023-01-28 00:50:19,941 INFO L158 Benchmark]: CDTParser took 1.11ms. Allocated memory is still 255.9MB. Free memory is still 213.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:50:19,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 563.87ms. Allocated memory is still 388.0MB. Free memory was 354.5MB in the beginning and 298.8MB in the end (delta: 55.7MB). Peak memory consumption was 56.6MB. Max. memory is 16.0GB. [2023-01-28 00:50:19,942 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.73ms. Allocated memory is still 388.0MB. Free memory was 298.8MB in the beginning and 295.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 00:50:19,942 INFO L158 Benchmark]: Boogie Preprocessor took 23.71ms. Allocated memory is still 388.0MB. Free memory was 295.6MB in the beginning and 293.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 00:50:19,943 INFO L158 Benchmark]: RCFGBuilder took 402.06ms. Allocated memory is still 388.0MB. Free memory was 293.1MB in the beginning and 342.6MB in the end (delta: -49.5MB). Peak memory consumption was 8.1MB. Max. memory is 16.0GB. [2023-01-28 00:50:19,944 INFO L158 Benchmark]: TraceAbstraction took 3155.74ms. Allocated memory was 388.0MB in the beginning and 465.6MB in the end (delta: 77.6MB). Free memory was 341.6MB in the beginning and 363.4MB in the end (delta: -21.8MB). Peak memory consumption was 55.7MB. Max. memory is 16.0GB. [2023-01-28 00:50:19,953 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.11ms. Allocated memory is still 255.9MB. Free memory is still 213.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 563.87ms. Allocated memory is still 388.0MB. Free memory was 354.5MB in the beginning and 298.8MB in the end (delta: 55.7MB). Peak memory consumption was 56.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 36.73ms. Allocated memory is still 388.0MB. Free memory was 298.8MB in the beginning and 295.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.71ms. Allocated memory is still 388.0MB. Free memory was 295.6MB in the beginning and 293.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 402.06ms. Allocated memory is still 388.0MB. Free memory was 293.1MB in the beginning and 342.6MB in the end (delta: -49.5MB). Peak memory consumption was 8.1MB. Max. memory is 16.0GB. * TraceAbstraction took 3155.74ms. Allocated memory was 388.0MB in the beginning and 465.6MB in the end (delta: 77.6MB). Free memory was 341.6MB in the beginning and 363.4MB in the end (delta: -21.8MB). Peak memory consumption was 55.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 81 PlacesBefore, 14 PlacesAfterwards, 78 TransitionsBefore, 10 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 7 FixpointIterations, 55 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 239 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 202, independent: 162, independent conditional: 0, independent unconditional: 162, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 114, independent: 100, independent conditional: 0, independent unconditional: 100, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 202, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 114, unknown conditional: 0, unknown unconditional: 114] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1714] 0 pdev = 2 VAL [arg={0:0}, mutex={4:0}, pdev=2, t1={3:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1717] CALL 0 ldv_assert(pdev==2) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, arg={0:0}, arg={0:0}, expression=0, mutex={4:0}, pdev=6, t1={3:0}] - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 100 locations, 5 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: 3.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 5, 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-01-28 00:50:19,970 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 Received shutdown request...