/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 21:30:55,225 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 21:30:55,308 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-VariableLbe.epf [2023-08-26 21:30:55,313 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 21:30:55,313 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 21:30:55,345 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 21:30:55,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 21:30:55,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 21:30:55,347 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 21:30:55,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 21:30:55,350 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 21:30:55,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 21:30:55,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 21:30:55,352 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 21:30:55,352 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 21:30:55,352 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 21:30:55,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 21:30:55,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 21:30:55,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 21:30:55,353 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 21:30:55,353 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 21:30:55,354 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 21:30:55,354 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 21:30:55,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 21:30:55,355 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 21:30:55,355 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 21:30:55,356 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 21:30:55,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 21:30:55,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 21:30:55,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 21:30:55,357 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 21:30:55,357 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 21:30:55,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 21:30:55,358 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 21:30:55,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 21:30:55,358 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 21:30:55,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 21:30:55,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 21:30:55,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 21:30:55,712 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 21:30:55,713 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 21:30:55,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2023-08-26 21:30:56,948 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 21:30:57,304 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 21:30:57,305 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2023-08-26 21:30:57,329 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61c73b8a1/5bd1e017abf94237af1ef04f36ad897f/FLAGc8470968d [2023-08-26 21:30:57,343 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61c73b8a1/5bd1e017abf94237af1ef04f36ad897f [2023-08-26 21:30:57,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 21:30:57,350 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 21:30:57,353 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 21:30:57,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 21:30:57,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 21:30:57,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:30:57" (1/1) ... [2023-08-26 21:30:57,358 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a329ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:57, skipping insertion in model container [2023-08-26 21:30:57,358 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:30:57" (1/1) ... [2023-08-26 21:30:57,420 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 21:30:57,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 21:30:57,955 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 21:30:57,975 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-26 21:30:57,982 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-26 21:30:57,989 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [729] [2023-08-26 21:30:58,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 21:30:58,133 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 21:30:58,134 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 21:30:58,140 INFO L206 MainTranslator]: Completed translation [2023-08-26 21:30:58,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:58 WrapperNode [2023-08-26 21:30:58,141 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 21:30:58,142 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 21:30:58,142 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 21:30:58,142 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 21:30:58,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:58" (1/1) ... [2023-08-26 21:30:58,189 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:58" (1/1) ... [2023-08-26 21:30:58,225 INFO L138 Inliner]: procedures = 482, calls = 34, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 102 [2023-08-26 21:30:58,225 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 21:30:58,227 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 21:30:58,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 21:30:58,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 21:30:58,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:58" (1/1) ... [2023-08-26 21:30:58,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:58" (1/1) ... [2023-08-26 21:30:58,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:58" (1/1) ... [2023-08-26 21:30:58,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:58" (1/1) ... [2023-08-26 21:30:58,257 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:58" (1/1) ... [2023-08-26 21:30:58,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:58" (1/1) ... [2023-08-26 21:30:58,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:58" (1/1) ... [2023-08-26 21:30:58,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:58" (1/1) ... [2023-08-26 21:30:58,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 21:30:58,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 21:30:58,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 21:30:58,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 21:30:58,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:58" (1/1) ... [2023-08-26 21:30:58,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 21:30:58,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 21:30:58,320 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) [2023-08-26 21:30:58,331 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 [2023-08-26 21:30:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 21:30:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 21:30:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 21:30:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 21:30:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 21:30:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 21:30:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-26 21:30:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 21:30:58,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 21:30:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 21:30:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 21:30:58,352 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 21:30:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 21:30:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 21:30:58,353 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 21:30:58,646 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 21:30:58,648 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 21:30:58,848 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 21:30:58,886 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 21:30:58,887 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 21:30:58,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:30:58 BoogieIcfgContainer [2023-08-26 21:30:58,889 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 21:30:58,891 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 21:30:58,891 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 21:30:58,894 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 21:30:58,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 09:30:57" (1/3) ... [2023-08-26 21:30:58,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683048b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:30:58, skipping insertion in model container [2023-08-26 21:30:58,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:58" (2/3) ... [2023-08-26 21:30:58,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683048b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:30:58, skipping insertion in model container [2023-08-26 21:30:58,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:30:58" (3/3) ... [2023-08-26 21:30:58,896 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2023-08-26 21:30:58,910 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 21:30:58,911 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-26 21:30:58,911 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 21:30:58,946 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-26 21:30:58,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 107 transitions, 222 flow [2023-08-26 21:30:59,048 INFO L124 PetriNetUnfolderBase]: 7/121 cut-off events. [2023-08-26 21:30:59,048 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 21:30:59,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 121 events. 7/121 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 199 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 74. Up to 3 conditions per place. [2023-08-26 21:30:59,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 107 transitions, 222 flow [2023-08-26 21:30:59,058 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 92 transitions, 190 flow [2023-08-26 21:30:59,061 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 21:30:59,071 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 92 transitions, 190 flow [2023-08-26 21:30:59,073 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 92 transitions, 190 flow [2023-08-26 21:30:59,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 92 transitions, 190 flow [2023-08-26 21:30:59,099 INFO L124 PetriNetUnfolderBase]: 4/102 cut-off events. [2023-08-26 21:30:59,099 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 21:30:59,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 102 events. 4/102 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 126 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2023-08-26 21:30:59,101 INFO L119 LiptonReduction]: Number of co-enabled transitions 182 [2023-08-26 21:31:02,073 INFO L134 LiptonReduction]: Checked pairs total: 195 [2023-08-26 21:31:02,073 INFO L136 LiptonReduction]: Total number of compositions: 110 [2023-08-26 21:31:02,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 21:31:02,091 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;@cbcb9d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 21:31:02,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-26 21:31:02,092 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 21:31:02,092 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 21:31:02,092 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:31:02,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:31:02,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 21:31:02,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 2 more)] === [2023-08-26 21:31:02,097 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:31:02,098 INFO L85 PathProgramCache]: Analyzing trace with hash 433, now seen corresponding path program 1 times [2023-08-26 21:31:02,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:31:02,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090451754] [2023-08-26 21:31:02,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:31:02,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:31:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:31:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:31:02,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:31:02,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090451754] [2023-08-26 21:31:02,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090451754] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:31:02,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:31:02,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 21:31:02,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802830715] [2023-08-26 21:31:02,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:31:02,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 21:31:02,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:31:02,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 21:31:02,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 21:31:02,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 217 [2023-08-26 21:31:02,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 11 transitions, 28 flow. Second operand has 2 states, 2 states have (on average 94.5) internal successors, (189), 2 states have internal predecessors, (189), 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) [2023-08-26 21:31:02,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:31:02,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 217 [2023-08-26 21:31:02,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:31:02,338 INFO L124 PetriNetUnfolderBase]: 3/13 cut-off events. [2023-08-26 21:31:02,339 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 21:31:02,339 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. [2023-08-26 21:31:02,340 INFO L140 encePairwiseOnDemand]: 213/217 looper letters, 5 selfloop transitions, 0 changer transitions 2/7 dead transitions. [2023-08-26 21:31:02,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 34 flow [2023-08-26 21:31:02,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 21:31:02,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 21:31:02,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 199 transitions. [2023-08-26 21:31:02,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45852534562211983 [2023-08-26 21:31:02,355 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 199 transitions. [2023-08-26 21:31:02,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 199 transitions. [2023-08-26 21:31:02,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:31:02,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 199 transitions. [2023-08-26 21:31:02,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 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) [2023-08-26 21:31:02,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2023-08-26 21:31:02,368 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2023-08-26 21:31:02,369 INFO L175 Difference]: Start difference. First operand has 14 places, 11 transitions, 28 flow. Second operand 2 states and 199 transitions. [2023-08-26 21:31:02,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 34 flow [2023-08-26 21:31:02,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:31:02,372 INFO L231 Difference]: Finished difference. Result has 10 places, 5 transitions, 11 flow [2023-08-26 21:31:02,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, 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} [2023-08-26 21:31:02,378 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -4 predicate places. [2023-08-26 21:31:02,378 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 5 transitions, 11 flow [2023-08-26 21:31:02,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 94.5) internal successors, (189), 2 states have internal predecessors, (189), 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) [2023-08-26 21:31:02,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:31:02,378 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 21:31:02,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 21:31:02,379 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 2 more)] === [2023-08-26 21:31:02,379 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:31:02,379 INFO L85 PathProgramCache]: Analyzing trace with hash 13316243, now seen corresponding path program 1 times [2023-08-26 21:31:02,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:31:02,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980173973] [2023-08-26 21:31:02,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:31:02,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:31:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:31:02,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:31:02,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:31:02,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980173973] [2023-08-26 21:31:02,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980173973] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:31:02,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:31:02,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:31:02,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774371057] [2023-08-26 21:31:02,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:31:02,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 21:31:02,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:31:02,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 21:31:02,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 21:31:02,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 217 [2023-08-26 21:31:02,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 10 places, 5 transitions, 11 flow. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2023-08-26 21:31:02,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:31:02,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 217 [2023-08-26 21:31:02,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:31:02,615 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2023-08-26 21:31:02,615 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:31:02,615 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. [2023-08-26 21:31:02,616 INFO L140 encePairwiseOnDemand]: 214/217 looper letters, 3 selfloop transitions, 2 changer transitions 1/6 dead transitions. [2023-08-26 21:31:02,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 25 flow [2023-08-26 21:31:02,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 21:31:02,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 21:31:02,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2023-08-26 21:31:02,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.402457757296467 [2023-08-26 21:31:02,620 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2023-08-26 21:31:02,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2023-08-26 21:31:02,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:31:02,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2023-08-26 21:31:02,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2023-08-26 21:31:02,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 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) [2023-08-26 21:31:02,625 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 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) [2023-08-26 21:31:02,625 INFO L175 Difference]: Start difference. First operand has 10 places, 5 transitions, 11 flow. Second operand 3 states and 262 transitions. [2023-08-26 21:31:02,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 25 flow [2023-08-26 21:31:02,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 25 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 21:31:02,626 INFO L231 Difference]: Finished difference. Result has 11 places, 5 transitions, 19 flow [2023-08-26 21:31:02,626 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, 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} [2023-08-26 21:31:02,627 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -3 predicate places. [2023-08-26 21:31:02,628 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 5 transitions, 19 flow [2023-08-26 21:31:02,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2023-08-26 21:31:02,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:31:02,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 21:31:02,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 21:31:02,636 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 2 more)] === [2023-08-26 21:31:02,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:31:02,638 INFO L85 PathProgramCache]: Analyzing trace with hash 412808872, now seen corresponding path program 1 times [2023-08-26 21:31:02,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:31:02,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566429456] [2023-08-26 21:31:02,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:31:02,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:31:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 21:31:02,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 21:31:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 21:31:02,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 21:31:02,724 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 21:31:02,725 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2023-08-26 21:31:02,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 5 remaining) [2023-08-26 21:31:02,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (2 of 5 remaining) [2023-08-26 21:31:02,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONASSERT (1 of 5 remaining) [2023-08-26 21:31:02,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-08-26 21:31:02,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 21:31:02,729 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-26 21:31:02,733 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 21:31:02,733 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 21:31:02,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 09:31:02 BasicIcfg [2023-08-26 21:31:02,755 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 21:31:02,757 INFO L158 Benchmark]: Toolchain (without parser) took 5405.01ms. Allocated memory was 348.1MB in the beginning and 436.2MB in the end (delta: 88.1MB). Free memory was 321.3MB in the beginning and 295.8MB in the end (delta: 25.5MB). Peak memory consumption was 114.3MB. Max. memory is 16.0GB. [2023-08-26 21:31:02,757 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 348.1MB. Free memory is still 324.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 21:31:02,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 788.13ms. Allocated memory is still 348.1MB. Free memory was 321.3MB in the beginning and 266.1MB in the end (delta: 55.2MB). Peak memory consumption was 54.5MB. Max. memory is 16.0GB. [2023-08-26 21:31:02,762 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.74ms. Allocated memory is still 348.1MB. Free memory was 265.4MB in the beginning and 262.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 21:31:02,762 INFO L158 Benchmark]: Boogie Preprocessor took 58.17ms. Allocated memory is still 348.1MB. Free memory was 262.6MB in the beginning and 259.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 21:31:02,763 INFO L158 Benchmark]: RCFGBuilder took 603.32ms. Allocated memory is still 348.1MB. Free memory was 259.8MB in the beginning and 311.2MB in the end (delta: -51.4MB). Peak memory consumption was 15.1MB. Max. memory is 16.0GB. [2023-08-26 21:31:02,763 INFO L158 Benchmark]: TraceAbstraction took 3863.91ms. Allocated memory was 348.1MB in the beginning and 436.2MB in the end (delta: 88.1MB). Free memory was 311.2MB in the beginning and 295.8MB in the end (delta: 15.4MB). Peak memory consumption was 105.6MB. Max. memory is 16.0GB. [2023-08-26 21:31:02,769 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 348.1MB. Free memory is still 324.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 788.13ms. Allocated memory is still 348.1MB. Free memory was 321.3MB in the beginning and 266.1MB in the end (delta: 55.2MB). Peak memory consumption was 54.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 83.74ms. Allocated memory is still 348.1MB. Free memory was 265.4MB in the beginning and 262.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 58.17ms. Allocated memory is still 348.1MB. Free memory was 262.6MB in the beginning and 259.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 603.32ms. Allocated memory is still 348.1MB. Free memory was 259.8MB in the beginning and 311.2MB in the end (delta: -51.4MB). Peak memory consumption was 15.1MB. Max. memory is 16.0GB. * TraceAbstraction took 3863.91ms. Allocated memory was 348.1MB in the beginning and 436.2MB in the end (delta: 88.1MB). Free memory was 311.2MB in the beginning and 295.8MB in the end (delta: 15.4MB). Peak memory consumption was 105.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 729]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [729] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 91 PlacesBefore, 14 PlacesAfterwards, 92 TransitionsBefore, 11 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 7 FixpointIterations, 72 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 110 TotalNumberOfCompositions, 195 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 163, independent: 149, independent conditional: 0, independent unconditional: 149, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 106, independent: 98, independent conditional: 0, independent unconditional: 98, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 163, independent: 51, independent conditional: 0, independent unconditional: 51, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 106, unknown conditional: 0, unknown unconditional: 106] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1693]: assertion can be violated assertion can be violated We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL, EXPR 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}] [L1713] 0 return 0; [L1734] RET, EXPR 0 module_init() [L1734] COND FALSE 0 !(module_init()!=0) [L1735] CALL 0 module_exit() [L1721] 0 void *status; [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={4:0}, pdev=4, status={5:0}, t1={3:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1726] CALL 0 ldv_assert(pdev==4) [L1695] COND TRUE 0 !expression [L1695] CALL 0 reach_error() [L1693] COND FALSE 0 !(0) [L1693] 0 __assert_fail ("0", "race-1_3-join.c", 10, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] - UnprovableResult [Line: 1693]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that assertion always holds Unable to prove that assertion always holds 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, 109 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: 3.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, 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=28occurred 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, 0.1s 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! [2023-08-26 21:31:02,783 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...