/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.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/02-base_25-malloc_race_cp.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:14:25,627 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:14:25,708 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 [2023-08-25 17:14:25,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:14:25,715 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:14:25,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:14:25,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:14:25,753 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:14:25,754 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:14:25,757 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:14:25,757 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:14:25,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:14:25,758 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:14:25,759 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:14:25,759 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:14:25,760 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:14:25,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:14:25,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:14:25,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:14:25,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:14:25,761 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:14:25,761 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:14:25,762 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:14:25,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:14:25,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:14:25,763 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:14:25,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:14:25,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:14:25,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:14:25,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:14:25,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:14:25,764 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:14:25,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:14:25,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:14:25,765 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:14:25,765 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:14:26,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:14:26,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:14:26,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:14:26,126 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:14:26,127 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:14:26,128 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/02-base_25-malloc_race_cp.i [2023-08-25 17:14:27,335 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:14:27,648 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:14:27,649 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/02-base_25-malloc_race_cp.i [2023-08-25 17:14:27,667 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e9b2e3eb/e92498f127e04c679cdc386dced7395d/FLAG928202bf5 [2023-08-25 17:14:27,691 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e9b2e3eb/e92498f127e04c679cdc386dced7395d [2023-08-25 17:14:27,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:14:27,697 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:14:27,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:14:27,698 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:14:27,700 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:14:27,700 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:14:27" (1/1) ... [2023-08-25 17:14:27,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f7439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:14:27, skipping insertion in model container [2023-08-25 17:14:27,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:14:27" (1/1) ... [2023-08-25 17:14:27,745 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:14:28,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:14:28,213 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:14:28,238 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-25 17:14:28,240 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-25 17:14:28,256 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044] [2023-08-25 17:14:28,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:14:28,358 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:14:28,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:14:28 WrapperNode [2023-08-25 17:14:28,358 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:14:28,359 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:14:28,360 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:14:28,360 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:14:28,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:14:28" (1/1) ... [2023-08-25 17:14:28,383 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:14:28" (1/1) ... [2023-08-25 17:14:28,402 INFO L138 Inliner]: procedures = 365, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2023-08-25 17:14:28,403 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:14:28,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:14:28,404 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:14:28,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:14:28,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:14:28" (1/1) ... [2023-08-25 17:14:28,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:14:28" (1/1) ... [2023-08-25 17:14:28,421 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:14:28" (1/1) ... [2023-08-25 17:14:28,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:14:28" (1/1) ... [2023-08-25 17:14:28,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:14:28" (1/1) ... [2023-08-25 17:14:28,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:14:28" (1/1) ... [2023-08-25 17:14:28,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:14:28" (1/1) ... [2023-08-25 17:14:28,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:14:28" (1/1) ... [2023-08-25 17:14:28,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:14:28,450 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:14:28,450 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:14:28,450 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:14:28,451 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:14:28" (1/1) ... [2023-08-25 17:14:28,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:14:28,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:14:28,479 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) [2023-08-25 17:14:28,496 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 [2023-08-25 17:14:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:14:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:14:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:14:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:14:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:14:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 17:14:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:14:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:14:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:14:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:14:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:14:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:14:28,521 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 17:14:28,693 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:14:28,695 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:14:28,940 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:14:28,946 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:14:28,946 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:14:28,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:14:28 BoogieIcfgContainer [2023-08-25 17:14:28,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:14:28,950 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:14:28,950 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:14:28,952 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:14:28,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:14:27" (1/3) ... [2023-08-25 17:14:28,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667b3b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:14:28, skipping insertion in model container [2023-08-25 17:14:28,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:14:28" (2/3) ... [2023-08-25 17:14:28,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667b3b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:14:28, skipping insertion in model container [2023-08-25 17:14:28,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:14:28" (3/3) ... [2023-08-25 17:14:28,955 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_25-malloc_race_cp.i [2023-08-25 17:14:28,970 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:14:28,970 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-25 17:14:28,970 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:14:29,014 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 17:14:29,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 102 transitions, 209 flow [2023-08-25 17:14:29,103 INFO L124 PetriNetUnfolderBase]: 0/101 cut-off events. [2023-08-25 17:14:29,104 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:14:29,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 0/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 17:14:29,109 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 102 transitions, 209 flow [2023-08-25 17:14:29,113 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 101 transitions, 205 flow [2023-08-25 17:14:29,117 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:14:29,131 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 101 transitions, 205 flow [2023-08-25 17:14:29,138 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 101 transitions, 205 flow [2023-08-25 17:14:29,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 101 transitions, 205 flow [2023-08-25 17:14:29,172 INFO L124 PetriNetUnfolderBase]: 0/101 cut-off events. [2023-08-25 17:14:29,172 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:14:29,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 0/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 17:14:29,175 INFO L119 LiptonReduction]: Number of co-enabled transitions 1860 [2023-08-25 17:14:32,053 INFO L134 LiptonReduction]: Checked pairs total: 15445 [2023-08-25 17:14:32,054 INFO L136 LiptonReduction]: Total number of compositions: 77 [2023-08-25 17:14:32,065 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:14:32,070 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;@2e8428e1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:14:32,071 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-25 17:14:32,071 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:14:32,072 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 17:14:32,072 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:14:32,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:14:32,072 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 17:14:32,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-25 17:14:32,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:14:32,077 INFO L85 PathProgramCache]: Analyzing trace with hash 336, now seen corresponding path program 1 times [2023-08-25 17:14:32,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:14:32,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069128791] [2023-08-25 17:14:32,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:14:32,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:14:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:14:32,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:14:32,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:14:32,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069128791] [2023-08-25 17:14:32,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069128791] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:14:32,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:14:32,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 17:14:32,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747023539] [2023-08-25 17:14:32,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:14:32,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 17:14:32,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:14:32,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 17:14:32,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 17:14:32,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 179 [2023-08-25 17:14:32,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 91 flow. Second operand has 2 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 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) [2023-08-25 17:14:32,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:14:32,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 179 [2023-08-25 17:14:32,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:14:32,287 INFO L124 PetriNetUnfolderBase]: 35/200 cut-off events. [2023-08-25 17:14:32,288 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:14:32,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 200 events. 35/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 841 event pairs, 35 based on Foata normal form. 5/193 useless extension candidates. Maximal degree in co-relation 280. Up to 85 conditions per place. [2023-08-25 17:14:32,291 INFO L140 encePairwiseOnDemand]: 175/179 looper letters, 14 selfloop transitions, 0 changer transitions 0/40 dead transitions. [2023-08-25 17:14:32,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 40 transitions, 111 flow [2023-08-25 17:14:32,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 17:14:32,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 17:14:32,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 220 transitions. [2023-08-25 17:14:32,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6145251396648045 [2023-08-25 17:14:32,304 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 220 transitions. [2023-08-25 17:14:32,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 220 transitions. [2023-08-25 17:14:32,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:14:32,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 220 transitions. [2023-08-25 17:14:32,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 110.0) internal successors, (220), 2 states have internal predecessors, (220), 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) [2023-08-25 17:14:32,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 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) [2023-08-25 17:14:32,313 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 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) [2023-08-25 17:14:32,315 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 91 flow. Second operand 2 states and 220 transitions. [2023-08-25 17:14:32,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 40 transitions, 111 flow [2023-08-25 17:14:32,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 40 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:14:32,318 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 82 flow [2023-08-25 17:14:32,320 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2023-08-25 17:14:32,323 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -4 predicate places. [2023-08-25 17:14:32,323 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 82 flow [2023-08-25 17:14:32,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 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) [2023-08-25 17:14:32,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:14:32,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 17:14:32,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:14:32,324 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-25 17:14:32,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:14:32,325 INFO L85 PathProgramCache]: Analyzing trace with hash 324012270, now seen corresponding path program 1 times [2023-08-25 17:14:32,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:14:32,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613081749] [2023-08-25 17:14:32,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:14:32,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:14:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:14:32,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:14:32,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:14:32,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613081749] [2023-08-25 17:14:32,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613081749] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:14:32,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:14:32,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:14:32,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763038800] [2023-08-25 17:14:32,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:14:32,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:14:32,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:14:32,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:14:32,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:14:32,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 179 [2023-08-25 17:14:32,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2023-08-25 17:14:32,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:14:32,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 179 [2023-08-25 17:14:32,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:14:32,493 INFO L124 PetriNetUnfolderBase]: 48/231 cut-off events. [2023-08-25 17:14:32,494 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:14:32,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 231 events. 48/231 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1016 event pairs, 31 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 345. Up to 106 conditions per place. [2023-08-25 17:14:32,496 INFO L140 encePairwiseOnDemand]: 175/179 looper letters, 18 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2023-08-25 17:14:32,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 42 transitions, 126 flow [2023-08-25 17:14:32,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:14:32,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:14:32,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-08-25 17:14:32,499 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5549348230912476 [2023-08-25 17:14:32,500 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-08-25 17:14:32,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-08-25 17:14:32,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:14:32,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-08-25 17:14:32,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2023-08-25 17:14:32,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 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) [2023-08-25 17:14:32,504 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 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) [2023-08-25 17:14:32,504 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 82 flow. Second operand 3 states and 298 transitions. [2023-08-25 17:14:32,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 42 transitions, 126 flow [2023-08-25 17:14:32,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 42 transitions, 126 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:14:32,506 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 92 flow [2023-08-25 17:14:32,506 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2023-08-25 17:14:32,507 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-08-25 17:14:32,507 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 92 flow [2023-08-25 17:14:32,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2023-08-25 17:14:32,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:14:32,507 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:14:32,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:14:32,508 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-25 17:14:32,508 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:14:32,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1621764314, now seen corresponding path program 1 times [2023-08-25 17:14:32,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:14:32,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872528336] [2023-08-25 17:14:32,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:14:32,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:14:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:14:32,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:14:32,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:14:32,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872528336] [2023-08-25 17:14:32,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872528336] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:14:32,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:14:32,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:14:32,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085138695] [2023-08-25 17:14:32,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:14:32,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:14:32,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:14:32,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:14:32,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:14:32,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 179 [2023-08-25 17:14:32,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 92 flow. Second operand has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 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) [2023-08-25 17:14:32,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:14:32,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 179 [2023-08-25 17:14:32,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:14:33,300 INFO L124 PetriNetUnfolderBase]: 351/763 cut-off events. [2023-08-25 17:14:33,301 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2023-08-25 17:14:33,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1550 conditions, 763 events. 351/763 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3579 event pairs, 191 based on Foata normal form. 0/670 useless extension candidates. Maximal degree in co-relation 1546. Up to 573 conditions per place. [2023-08-25 17:14:33,306 INFO L140 encePairwiseOnDemand]: 164/179 looper letters, 80 selfloop transitions, 37 changer transitions 0/120 dead transitions. [2023-08-25 17:14:33,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 120 transitions, 494 flow [2023-08-25 17:14:33,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:14:33,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:14:33,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 542 transitions. [2023-08-25 17:14:33,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5046554934823091 [2023-08-25 17:14:33,311 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 542 transitions. [2023-08-25 17:14:33,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 542 transitions. [2023-08-25 17:14:33,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:14:33,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 542 transitions. [2023-08-25 17:14:33,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.33333333333333) internal successors, (542), 6 states have internal predecessors, (542), 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) [2023-08-25 17:14:33,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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) [2023-08-25 17:14:33,316 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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) [2023-08-25 17:14:33,317 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 92 flow. Second operand 6 states and 542 transitions. [2023-08-25 17:14:33,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 120 transitions, 494 flow [2023-08-25 17:14:33,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 120 transitions, 494 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:14:33,319 INFO L231 Difference]: Finished difference. Result has 54 places, 78 transitions, 325 flow [2023-08-25 17:14:33,320 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=325, PETRI_PLACES=54, PETRI_TRANSITIONS=78} [2023-08-25 17:14:33,320 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 6 predicate places. [2023-08-25 17:14:33,320 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 78 transitions, 325 flow [2023-08-25 17:14:33,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 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) [2023-08-25 17:14:33,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:14:33,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:14:33,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:14:33,322 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-25 17:14:33,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:14:33,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1669353373, now seen corresponding path program 1 times [2023-08-25 17:14:33,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:14:33,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777927206] [2023-08-25 17:14:33,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:14:33,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:14:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:14:33,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:14:33,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:14:33,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777927206] [2023-08-25 17:14:33,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777927206] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:14:33,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:14:33,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:14:33,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090936807] [2023-08-25 17:14:33,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:14:33,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:14:33,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:14:33,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:14:33,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:14:33,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 179 [2023-08-25 17:14:33,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 78 transitions, 325 flow. Second operand has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 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) [2023-08-25 17:14:33,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:14:33,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 179 [2023-08-25 17:14:33,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:14:33,892 INFO L124 PetriNetUnfolderBase]: 566/1239 cut-off events. [2023-08-25 17:14:33,893 INFO L125 PetriNetUnfolderBase]: For 380/380 co-relation queries the response was YES. [2023-08-25 17:14:33,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3367 conditions, 1239 events. 566/1239 cut-off events. For 380/380 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 6974 event pairs, 68 based on Foata normal form. 18/1183 useless extension candidates. Maximal degree in co-relation 3358. Up to 585 conditions per place. [2023-08-25 17:14:33,901 INFO L140 encePairwiseOnDemand]: 164/179 looper letters, 147 selfloop transitions, 48 changer transitions 0/198 dead transitions. [2023-08-25 17:14:33,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 198 transitions, 1103 flow [2023-08-25 17:14:33,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:14:33,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:14:33,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 586 transitions. [2023-08-25 17:14:33,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5456238361266295 [2023-08-25 17:14:33,904 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 586 transitions. [2023-08-25 17:14:33,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 586 transitions. [2023-08-25 17:14:33,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:14:33,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 586 transitions. [2023-08-25 17:14:33,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.66666666666667) internal successors, (586), 6 states have internal predecessors, (586), 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) [2023-08-25 17:14:33,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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) [2023-08-25 17:14:33,909 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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) [2023-08-25 17:14:33,909 INFO L175 Difference]: Start difference. First operand has 54 places, 78 transitions, 325 flow. Second operand 6 states and 586 transitions. [2023-08-25 17:14:33,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 198 transitions, 1103 flow [2023-08-25 17:14:33,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 198 transitions, 1103 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:14:33,917 INFO L231 Difference]: Finished difference. Result has 63 places, 120 transitions, 671 flow [2023-08-25 17:14:33,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=671, PETRI_PLACES=63, PETRI_TRANSITIONS=120} [2023-08-25 17:14:33,917 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2023-08-25 17:14:33,918 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 120 transitions, 671 flow [2023-08-25 17:14:33,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 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) [2023-08-25 17:14:33,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:14:33,918 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:14:33,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:14:33,919 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-25 17:14:33,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:14:33,919 INFO L85 PathProgramCache]: Analyzing trace with hash 582888553, now seen corresponding path program 1 times [2023-08-25 17:14:33,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:14:33,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140750127] [2023-08-25 17:14:33,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:14:33,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:14:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:14:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:14:33,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:14:33,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140750127] [2023-08-25 17:14:33,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140750127] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:14:33,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:14:33,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 17:14:33,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059126558] [2023-08-25 17:14:33,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:14:33,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:14:33,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:14:33,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:14:33,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:14:33,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 179 [2023-08-25 17:14:33,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 120 transitions, 671 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2023-08-25 17:14:33,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:14:33,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 179 [2023-08-25 17:14:33,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:14:34,023 INFO L124 PetriNetUnfolderBase]: 40/176 cut-off events. [2023-08-25 17:14:34,024 INFO L125 PetriNetUnfolderBase]: For 108/112 co-relation queries the response was YES. [2023-08-25 17:14:34,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 176 events. 40/176 cut-off events. For 108/112 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 664 event pairs, 5 based on Foata normal form. 11/183 useless extension candidates. Maximal degree in co-relation 463. Up to 59 conditions per place. [2023-08-25 17:14:34,025 INFO L140 encePairwiseOnDemand]: 175/179 looper letters, 15 selfloop transitions, 4 changer transitions 0/61 dead transitions. [2023-08-25 17:14:34,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 61 transitions, 313 flow [2023-08-25 17:14:34,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:14:34,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:14:34,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2023-08-25 17:14:34,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5400372439478585 [2023-08-25 17:14:34,029 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 290 transitions. [2023-08-25 17:14:34,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 290 transitions. [2023-08-25 17:14:34,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:14:34,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 290 transitions. [2023-08-25 17:14:34,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2023-08-25 17:14:34,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 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) [2023-08-25 17:14:34,032 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 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) [2023-08-25 17:14:34,032 INFO L175 Difference]: Start difference. First operand has 63 places, 120 transitions, 671 flow. Second operand 3 states and 290 transitions. [2023-08-25 17:14:34,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 61 transitions, 313 flow [2023-08-25 17:14:34,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 61 transitions, 265 flow, removed 17 selfloop flow, removed 7 redundant places. [2023-08-25 17:14:34,035 INFO L231 Difference]: Finished difference. Result has 57 places, 60 transitions, 233 flow [2023-08-25 17:14:34,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=57, PETRI_TRANSITIONS=60} [2023-08-25 17:14:34,036 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 9 predicate places. [2023-08-25 17:14:34,036 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 60 transitions, 233 flow [2023-08-25 17:14:34,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2023-08-25 17:14:34,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:14:34,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:14:34,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:14:34,037 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-25 17:14:34,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:14:34,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1576726598, now seen corresponding path program 1 times [2023-08-25 17:14:34,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:14:34,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201322898] [2023-08-25 17:14:34,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:14:34,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:14:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:14:34,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:14:34,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:14:34,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201322898] [2023-08-25 17:14:34,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201322898] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:14:34,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:14:34,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:14:34,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574651643] [2023-08-25 17:14:34,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:14:34,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:14:34,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:14:34,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:14:34,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:14:34,296 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 179 [2023-08-25 17:14:34,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 60 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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) [2023-08-25 17:14:34,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:14:34,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 179 [2023-08-25 17:14:34,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:14:34,423 INFO L124 PetriNetUnfolderBase]: 134/348 cut-off events. [2023-08-25 17:14:34,424 INFO L125 PetriNetUnfolderBase]: For 126/128 co-relation queries the response was YES. [2023-08-25 17:14:34,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 951 conditions, 348 events. 134/348 cut-off events. For 126/128 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1368 event pairs, 48 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 940. Up to 297 conditions per place. [2023-08-25 17:14:34,426 INFO L140 encePairwiseOnDemand]: 169/179 looper letters, 58 selfloop transitions, 21 changer transitions 4/88 dead transitions. [2023-08-25 17:14:34,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 88 transitions, 487 flow [2023-08-25 17:14:34,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:14:34,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:14:34,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 487 transitions. [2023-08-25 17:14:34,428 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45344506517690875 [2023-08-25 17:14:34,428 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 487 transitions. [2023-08-25 17:14:34,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 487 transitions. [2023-08-25 17:14:34,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:14:34,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 487 transitions. [2023-08-25 17:14:34,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 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) [2023-08-25 17:14:34,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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) [2023-08-25 17:14:34,432 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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) [2023-08-25 17:14:34,432 INFO L175 Difference]: Start difference. First operand has 57 places, 60 transitions, 233 flow. Second operand 6 states and 487 transitions. [2023-08-25 17:14:34,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 88 transitions, 487 flow [2023-08-25 17:14:34,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 88 transitions, 483 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:14:34,434 INFO L231 Difference]: Finished difference. Result has 65 places, 80 transitions, 385 flow [2023-08-25 17:14:34,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=385, PETRI_PLACES=65, PETRI_TRANSITIONS=80} [2023-08-25 17:14:34,435 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2023-08-25 17:14:34,435 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 80 transitions, 385 flow [2023-08-25 17:14:34,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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) [2023-08-25 17:14:34,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:14:34,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:14:34,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 17:14:34,436 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-25 17:14:34,436 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:14:34,437 INFO L85 PathProgramCache]: Analyzing trace with hash -298521993, now seen corresponding path program 1 times [2023-08-25 17:14:34,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:14:34,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038808330] [2023-08-25 17:14:34,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:14:34,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:14:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:14:34,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:14:34,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:14:34,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038808330] [2023-08-25 17:14:34,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038808330] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:14:34,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:14:34,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:14:34,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746153597] [2023-08-25 17:14:34,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:14:34,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:14:34,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:14:34,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:14:34,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:14:34,638 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 179 [2023-08-25 17:14:34,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 80 transitions, 385 flow. Second operand has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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) [2023-08-25 17:14:34,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:14:34,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 179 [2023-08-25 17:14:34,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:14:34,826 INFO L124 PetriNetUnfolderBase]: 194/492 cut-off events. [2023-08-25 17:14:34,826 INFO L125 PetriNetUnfolderBase]: For 249/251 co-relation queries the response was YES. [2023-08-25 17:14:34,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 492 events. 194/492 cut-off events. For 249/251 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2240 event pairs, 27 based on Foata normal form. 0/459 useless extension candidates. Maximal degree in co-relation 1586. Up to 331 conditions per place. [2023-08-25 17:14:34,829 INFO L140 encePairwiseOnDemand]: 165/179 looper letters, 88 selfloop transitions, 45 changer transitions 19/156 dead transitions. [2023-08-25 17:14:34,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 156 transitions, 1011 flow [2023-08-25 17:14:34,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:14:34,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:14:34,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 540 transitions. [2023-08-25 17:14:34,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5027932960893855 [2023-08-25 17:14:34,832 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 540 transitions. [2023-08-25 17:14:34,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 540 transitions. [2023-08-25 17:14:34,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:14:34,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 540 transitions. [2023-08-25 17:14:34,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 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) [2023-08-25 17:14:34,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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) [2023-08-25 17:14:34,835 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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) [2023-08-25 17:14:34,835 INFO L175 Difference]: Start difference. First operand has 65 places, 80 transitions, 385 flow. Second operand 6 states and 540 transitions. [2023-08-25 17:14:34,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 156 transitions, 1011 flow [2023-08-25 17:14:34,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 156 transitions, 979 flow, removed 16 selfloop flow, removed 0 redundant places. [2023-08-25 17:14:34,840 INFO L231 Difference]: Finished difference. Result has 75 places, 113 transitions, 719 flow [2023-08-25 17:14:34,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=719, PETRI_PLACES=75, PETRI_TRANSITIONS=113} [2023-08-25 17:14:34,841 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2023-08-25 17:14:34,841 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 113 transitions, 719 flow [2023-08-25 17:14:34,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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) [2023-08-25 17:14:34,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:14:34,842 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:14:34,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 17:14:34,842 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-25 17:14:34,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:14:34,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1774017622, now seen corresponding path program 1 times [2023-08-25 17:14:34,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:14:34,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584456680] [2023-08-25 17:14:34,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:14:34,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:14:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:14:35,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:14:35,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:14:35,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584456680] [2023-08-25 17:14:35,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584456680] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:14:35,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:14:35,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 17:14:35,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126792718] [2023-08-25 17:14:35,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:14:35,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 17:14:35,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:14:35,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 17:14:35,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-25 17:14:35,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 179 [2023-08-25 17:14:35,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 113 transitions, 719 flow. Second operand has 8 states, 8 states have (on average 69.625) internal successors, (557), 8 states have internal predecessors, (557), 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) [2023-08-25 17:14:35,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:14:35,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 179 [2023-08-25 17:14:35,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:14:35,564 INFO L124 PetriNetUnfolderBase]: 185/446 cut-off events. [2023-08-25 17:14:35,564 INFO L125 PetriNetUnfolderBase]: For 567/567 co-relation queries the response was YES. [2023-08-25 17:14:35,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1867 conditions, 446 events. 185/446 cut-off events. For 567/567 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1861 event pairs, 46 based on Foata normal form. 11/445 useless extension candidates. Maximal degree in co-relation 1846. Up to 318 conditions per place. [2023-08-25 17:14:35,568 INFO L140 encePairwiseOnDemand]: 172/179 looper letters, 115 selfloop transitions, 26 changer transitions 8/151 dead transitions. [2023-08-25 17:14:35,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 151 transitions, 1285 flow [2023-08-25 17:14:35,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 17:14:35,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 17:14:35,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 532 transitions. [2023-08-25 17:14:35,571 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4245810055865922 [2023-08-25 17:14:35,571 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 532 transitions. [2023-08-25 17:14:35,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 532 transitions. [2023-08-25 17:14:35,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:14:35,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 532 transitions. [2023-08-25 17:14:35,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 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) [2023-08-25 17:14:35,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 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) [2023-08-25 17:14:35,575 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 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) [2023-08-25 17:14:35,575 INFO L175 Difference]: Start difference. First operand has 75 places, 113 transitions, 719 flow. Second operand 7 states and 532 transitions. [2023-08-25 17:14:35,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 151 transitions, 1285 flow [2023-08-25 17:14:35,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 151 transitions, 1200 flow, removed 33 selfloop flow, removed 4 redundant places. [2023-08-25 17:14:35,590 INFO L231 Difference]: Finished difference. Result has 76 places, 112 transitions, 706 flow [2023-08-25 17:14:35,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=706, PETRI_PLACES=76, PETRI_TRANSITIONS=112} [2023-08-25 17:14:35,592 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 28 predicate places. [2023-08-25 17:14:35,592 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 112 transitions, 706 flow [2023-08-25 17:14:35,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.625) internal successors, (557), 8 states have internal predecessors, (557), 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) [2023-08-25 17:14:35,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:14:35,593 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:14:35,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 17:14:35,596 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-25 17:14:35,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:14:35,603 INFO L85 PathProgramCache]: Analyzing trace with hash 303862467, now seen corresponding path program 1 times [2023-08-25 17:14:35,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:14:35,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074254105] [2023-08-25 17:14:35,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:14:35,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:14:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:14:36,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:14:36,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:14:36,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074254105] [2023-08-25 17:14:36,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074254105] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:14:36,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:14:36,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 17:14:36,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536187629] [2023-08-25 17:14:36,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:14:36,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 17:14:36,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:14:36,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 17:14:36,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-25 17:14:36,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 179 [2023-08-25 17:14:36,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 112 transitions, 706 flow. Second operand has 8 states, 8 states have (on average 71.625) internal successors, (573), 8 states have internal predecessors, (573), 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) [2023-08-25 17:14:36,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:14:36,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 179 [2023-08-25 17:14:36,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:14:36,385 INFO L124 PetriNetUnfolderBase]: 175/426 cut-off events. [2023-08-25 17:14:36,386 INFO L125 PetriNetUnfolderBase]: For 499/499 co-relation queries the response was YES. [2023-08-25 17:14:36,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1781 conditions, 426 events. 175/426 cut-off events. For 499/499 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1763 event pairs, 21 based on Foata normal form. 10/425 useless extension candidates. Maximal degree in co-relation 1762. Up to 184 conditions per place. [2023-08-25 17:14:36,389 INFO L140 encePairwiseOnDemand]: 168/179 looper letters, 115 selfloop transitions, 49 changer transitions 10/176 dead transitions. [2023-08-25 17:14:36,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 176 transitions, 1427 flow [2023-08-25 17:14:36,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 17:14:36,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 17:14:36,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 586 transitions. [2023-08-25 17:14:36,391 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4676775738228252 [2023-08-25 17:14:36,392 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 586 transitions. [2023-08-25 17:14:36,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 586 transitions. [2023-08-25 17:14:36,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:14:36,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 586 transitions. [2023-08-25 17:14:36,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.71428571428571) internal successors, (586), 7 states have internal predecessors, (586), 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) [2023-08-25 17:14:36,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 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) [2023-08-25 17:14:36,396 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 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) [2023-08-25 17:14:36,396 INFO L175 Difference]: Start difference. First operand has 76 places, 112 transitions, 706 flow. Second operand 7 states and 586 transitions. [2023-08-25 17:14:36,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 176 transitions, 1427 flow [2023-08-25 17:14:36,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 176 transitions, 1321 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 17:14:36,404 INFO L231 Difference]: Finished difference. Result has 80 places, 119 transitions, 880 flow [2023-08-25 17:14:36,405 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=880, PETRI_PLACES=80, PETRI_TRANSITIONS=119} [2023-08-25 17:14:36,405 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 32 predicate places. [2023-08-25 17:14:36,405 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 119 transitions, 880 flow [2023-08-25 17:14:36,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 71.625) internal successors, (573), 8 states have internal predecessors, (573), 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) [2023-08-25 17:14:36,406 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:14:36,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:14:36,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 17:14:36,406 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-25 17:14:36,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:14:36,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1294977571, now seen corresponding path program 1 times [2023-08-25 17:14:36,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:14:36,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211603161] [2023-08-25 17:14:36,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:14:36,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:14:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:14:36,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 17:14:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:14:36,483 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 17:14:36,483 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 17:14:36,484 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-08-25 17:14:36,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-08-25 17:14:36,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-08-25 17:14:36,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-08-25 17:14:36,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-08-25 17:14:36,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-08-25 17:14:36,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-25 17:14:36,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-08-25 17:14:36,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-08-25 17:14:36,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-08-25 17:14:36,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-08-25 17:14:36,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-08-25 17:14:36,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-08-25 17:14:36,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-08-25 17:14:36,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-08-25 17:14:36,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 17:14:36,489 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:14:36,494 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:14:36,494 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:14:36,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:14:36 BasicIcfg [2023-08-25 17:14:36,557 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:14:36,558 INFO L158 Benchmark]: Toolchain (without parser) took 8860.75ms. Allocated memory was 354.4MB in the beginning and 539.0MB in the end (delta: 184.5MB). Free memory was 328.6MB in the beginning and 217.0MB in the end (delta: 111.5MB). Peak memory consumption was 297.6MB. Max. memory is 16.0GB. [2023-08-25 17:14:36,558 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 354.4MB. Free memory was 330.7MB in the beginning and 330.7MB in the end (delta: 83.7kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:14:36,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 661.03ms. Allocated memory is still 354.4MB. Free memory was 328.6MB in the beginning and 290.7MB in the end (delta: 37.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-25 17:14:36,559 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.50ms. Allocated memory is still 354.4MB. Free memory was 290.7MB in the beginning and 288.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:14:36,559 INFO L158 Benchmark]: Boogie Preprocessor took 45.94ms. Allocated memory is still 354.4MB. Free memory was 288.1MB in the beginning and 286.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:14:36,559 INFO L158 Benchmark]: RCFGBuilder took 498.09ms. Allocated memory is still 354.4MB. Free memory was 286.2MB in the beginning and 320.7MB in the end (delta: -34.5MB). Peak memory consumption was 12.0MB. Max. memory is 16.0GB. [2023-08-25 17:14:36,559 INFO L158 Benchmark]: TraceAbstraction took 7607.68ms. Allocated memory was 354.4MB in the beginning and 539.0MB in the end (delta: 184.5MB). Free memory was 319.4MB in the beginning and 217.0MB in the end (delta: 102.4MB). Peak memory consumption was 285.6MB. Max. memory is 16.0GB. [2023-08-25 17:14:36,560 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 354.4MB. Free memory was 330.7MB in the beginning and 330.7MB in the end (delta: 83.7kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 661.03ms. Allocated memory is still 354.4MB. Free memory was 328.6MB in the beginning and 290.7MB in the end (delta: 37.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.50ms. Allocated memory is still 354.4MB. Free memory was 290.7MB in the beginning and 288.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 45.94ms. Allocated memory is still 354.4MB. Free memory was 288.1MB in the beginning and 286.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 498.09ms. Allocated memory is still 354.4MB. Free memory was 286.2MB in the beginning and 320.7MB in the end (delta: -34.5MB). Peak memory consumption was 12.0MB. Max. memory is 16.0GB. * TraceAbstraction took 7607.68ms. Allocated memory was 354.4MB in the beginning and 539.0MB in the end (delta: 184.5MB). Free memory was 319.4MB in the beginning and 217.0MB in the end (delta: 102.4MB). Peak memory consumption was 285.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 261]: Unsoundness Warning unspecified type, defaulting to int C: short [261] - GenericResultAtLocation [Line: 261]: Unsoundness Warning unspecified type, defaulting to int C: short [261] - GenericResultAtLocation [Line: 1044]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [1044] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 105 PlacesBefore, 48 PlacesAfterwards, 101 TransitionsBefore, 44 TransitionsAfterwards, 1860 CoEnabledTransitionPairs, 9 FixpointIterations, 52 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 77 TotalNumberOfCompositions, 15445 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3411, independent: 2701, independent conditional: 0, independent unconditional: 2701, dependent: 710, dependent conditional: 0, dependent unconditional: 710, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 821, independent: 757, independent conditional: 0, independent unconditional: 757, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3411, independent: 1944, independent conditional: 0, independent unconditional: 1944, dependent: 646, dependent conditional: 0, dependent unconditional: 646, unknown: 821, unknown conditional: 0, unknown unconditional: 821] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 104, Positive conditional cache size: 0, Positive unconditional cache size: 104, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1243]: Data race detected Data race detected The following path leads to a data race: [L1223] 0 int *x; [L1224] 0 int *y; [L1225] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1234] 0 pthread_t id; [L1235] 0 int *z; [L1236] 0 x = malloc(sizeof(int)) [L1237] 0 y = malloc(sizeof(int)) [L1238] 0 z = y [L1239] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0, x={-1:0}, y={-2:0}, z={-2:0}] [L1241] EXPR 0 *x VAL [arg={0:0}, id={5:0}, m={1:0}, x={-1:0}, y={-2:0}, z={-2:0}] [L1241] EXPR 0 \read(*x) VAL [\read(*x)=26, arg={0:0}, id={5:0}, m={1:0}, x={-1:0}, y={-2:0}, z={-2:0}] [L1241] 0 printf("%d\n",*x) [L1243] EXPR 0 \read(*z) VAL [\read(*z)=28, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, pthread_mutex_lock(&m)=0, x={-1:0}, y={-2:0}, z={-2:0}] [L1228] EXPR 1 *x VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-1:0}, y={-2:0}] [L1228] 1 *x = 3 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-1:0}, y={-2:0}] [L1229] EXPR 1 *y [L1229] 1 *y = 8 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-1:0}, y={-2:0}] [L1229] 1 *y = 8 VAL [*y = 8=25, arg={0:0}, arg={0:0}, m={1:0}, x={-1:0}, y={-2:0}] [L1243] 0 printf("%d\n",*z) VAL [*y = 8=25, \read(*z)=28, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-1:0}, y={-2:0}, z={-2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: *x = 3 [1228] * C: *x = 3 [1228] * C: *y = 8 [1229] * C: x = malloc(sizeof(int)) [1236] * C: y = malloc(sizeof(int)) [1237] * C: *x = 3 [1228] * C: *x = 3 [1228] and C: printf("%d\n",*z) [1243] - UnprovableResult [Line: 1236]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: 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. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 135 locations, 15 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: 7.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 243 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 243 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 99 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1389 IncrementalHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 99 mSolverCounterUnsat, 68 mSDtfsCounter, 1389 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=880occurred in iteration=9, InterpolantAutomatonStates: 46, 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, 2.1s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 814 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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! [2023-08-25 17:14:36,595 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...