/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 02:13:00,663 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 02:13:00,744 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 02:13:00,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 02:13:00,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 02:13:00,782 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 02:13:00,782 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 02:13:00,787 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 02:13:00,788 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 02:13:00,791 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 02:13:00,791 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 02:13:00,792 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 02:13:00,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 02:13:00,793 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 02:13:00,793 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 02:13:00,794 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 02:13:00,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 02:13:00,794 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 02:13:00,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 02:13:00,794 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 02:13:00,795 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 02:13:00,795 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 02:13:00,796 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 02:13:00,796 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 02:13:00,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 02:13:00,797 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 02:13:00,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 02:13:00,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 02:13:00,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 02:13:00,798 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 02:13:00,798 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 02:13:00,799 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 02:13:00,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 02:13:00,799 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 02:13:00,799 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 02:13:00,799 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 02:13:01,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 02:13:01,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 02:13:01,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 02:13:01,166 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 02:13:01,167 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 02:13:01,168 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.i [2023-08-25 02:13:02,429 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 02:13:02,683 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 02:13:02,683 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.i [2023-08-25 02:13:02,697 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b26aa7dd3/60666525d3594f7986ebcea521760e4d/FLAG4956515a2 [2023-08-25 02:13:02,708 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b26aa7dd3/60666525d3594f7986ebcea521760e4d [2023-08-25 02:13:02,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 02:13:02,711 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 02:13:02,713 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 02:13:02,713 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 02:13:02,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 02:13:02,715 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:13:02" (1/1) ... [2023-08-25 02:13:02,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c215f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:13:02, skipping insertion in model container [2023-08-25 02:13:02,716 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:13:02" (1/1) ... [2023-08-25 02:13:02,767 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 02:13:03,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 02:13:03,063 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 02:13:03,091 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 02:13:03,092 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 02:13:03,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 02:13:03,154 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 02:13:03,154 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 02:13:03,160 INFO L206 MainTranslator]: Completed translation [2023-08-25 02:13:03,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:13:03 WrapperNode [2023-08-25 02:13:03,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 02:13:03,162 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 02:13:03,162 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 02:13:03,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 02:13:03,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:13:03" (1/1) ... [2023-08-25 02:13:03,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:13:03" (1/1) ... [2023-08-25 02:13:03,213 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 83 [2023-08-25 02:13:03,213 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 02:13:03,214 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 02:13:03,214 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 02:13:03,215 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 02:13:03,222 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:13:03" (1/1) ... [2023-08-25 02:13:03,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:13:03" (1/1) ... [2023-08-25 02:13:03,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:13:03" (1/1) ... [2023-08-25 02:13:03,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:13:03" (1/1) ... [2023-08-25 02:13:03,249 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:13:03" (1/1) ... [2023-08-25 02:13:03,251 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:13:03" (1/1) ... [2023-08-25 02:13:03,252 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:13:03" (1/1) ... [2023-08-25 02:13:03,253 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:13:03" (1/1) ... [2023-08-25 02:13:03,255 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 02:13:03,256 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 02:13:03,256 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 02:13:03,256 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 02:13:03,257 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:13:03" (1/1) ... [2023-08-25 02:13:03,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 02:13:03,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 02:13:03,294 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 02:13:03,309 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 02:13:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 02:13:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 02:13:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 02:13:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 02:13:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 02:13:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 02:13:03,338 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 02:13:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 02:13:03,338 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 02:13:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 02:13:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 02:13:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 02:13:03,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 02:13:03,339 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 02:13:03,470 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 02:13:03,471 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 02:13:03,628 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 02:13:03,741 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 02:13:03,741 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 02:13:03,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:13:03 BoogieIcfgContainer [2023-08-25 02:13:03,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 02:13:03,745 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 02:13:03,745 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 02:13:03,748 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 02:13:03,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 02:13:02" (1/3) ... [2023-08-25 02:13:03,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7783026e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:13:03, skipping insertion in model container [2023-08-25 02:13:03,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:13:03" (2/3) ... [2023-08-25 02:13:03,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7783026e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:13:03, skipping insertion in model container [2023-08-25 02:13:03,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:13:03" (3/3) ... [2023-08-25 02:13:03,750 INFO L112 eAbstractionObserver]: Analyzing ICFG safe033_tso.i [2023-08-25 02:13:03,765 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 02:13:03,765 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-08-25 02:13:03,765 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 02:13:03,807 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 02:13:03,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 91 transitions, 192 flow [2023-08-25 02:13:03,910 INFO L124 PetriNetUnfolderBase]: 3/89 cut-off events. [2023-08-25 02:13:03,911 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:13:03,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 89 events. 3/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-25 02:13:03,916 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 91 transitions, 192 flow [2023-08-25 02:13:03,921 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 89 transitions, 184 flow [2023-08-25 02:13:03,924 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 02:13:03,944 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 89 transitions, 184 flow [2023-08-25 02:13:03,947 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 89 transitions, 184 flow [2023-08-25 02:13:03,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 89 transitions, 184 flow [2023-08-25 02:13:03,991 INFO L124 PetriNetUnfolderBase]: 3/89 cut-off events. [2023-08-25 02:13:03,992 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:13:03,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 89 events. 3/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-25 02:13:03,995 INFO L119 LiptonReduction]: Number of co-enabled transitions 2096 [2023-08-25 02:13:06,484 INFO L134 LiptonReduction]: Checked pairs total: 6222 [2023-08-25 02:13:06,484 INFO L136 LiptonReduction]: Total number of compositions: 94 [2023-08-25 02:13:06,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 02:13:06,500 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;@3d01b57f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 02:13:06,501 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-08-25 02:13:06,502 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 02:13:06,502 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 02:13:06,502 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:13:06,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:13:06,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 02:13:06,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 02:13:06,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:13:06,508 INFO L85 PathProgramCache]: Analyzing trace with hash 448136, now seen corresponding path program 1 times [2023-08-25 02:13:06,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:13:06,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305739004] [2023-08-25 02:13:06,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:13:06,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:13:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:13:06,685 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 02:13:06,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:13:06,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305739004] [2023-08-25 02:13:06,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305739004] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:13:06,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:13:06,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 02:13:06,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255766168] [2023-08-25 02:13:06,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:13:06,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 02:13:06,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:13:06,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 02:13:06,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 02:13:06,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 185 [2023-08-25 02:13:06,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 29 transitions, 64 flow. Second operand has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 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 02:13:06,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:13:06,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 185 [2023-08-25 02:13:06,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:13:06,797 INFO L124 PetriNetUnfolderBase]: 87/160 cut-off events. [2023-08-25 02:13:06,797 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 02:13:06,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 160 events. 87/160 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 473 event pairs, 87 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 324. Up to 161 conditions per place. [2023-08-25 02:13:06,800 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 12 selfloop transitions, 0 changer transitions 1/13 dead transitions. [2023-08-25 02:13:06,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 58 flow [2023-08-25 02:13:06,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 02:13:06,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 02:13:06,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 155 transitions. [2023-08-25 02:13:06,813 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4189189189189189 [2023-08-25 02:13:06,814 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 155 transitions. [2023-08-25 02:13:06,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 155 transitions. [2023-08-25 02:13:06,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:13:06,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 155 transitions. [2023-08-25 02:13:06,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 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 02:13:06,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 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 02:13:06,827 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 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 02:13:06,829 INFO L175 Difference]: Start difference. First operand has 36 places, 29 transitions, 64 flow. Second operand 2 states and 155 transitions. [2023-08-25 02:13:06,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 58 flow [2023-08-25 02:13:06,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 13 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 02:13:06,832 INFO L231 Difference]: Finished difference. Result has 19 places, 12 transitions, 28 flow [2023-08-25 02:13:06,834 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=28, PETRI_PLACES=19, PETRI_TRANSITIONS=12} [2023-08-25 02:13:06,837 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -17 predicate places. [2023-08-25 02:13:06,837 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 12 transitions, 28 flow [2023-08-25 02:13:06,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 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 02:13:06,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:13:06,838 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 02:13:06,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 02:13:06,840 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 02:13:06,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:13:06,841 INFO L85 PathProgramCache]: Analyzing trace with hash 466991166, now seen corresponding path program 1 times [2023-08-25 02:13:06,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:13:06,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821303224] [2023-08-25 02:13:06,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:13:06,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:13:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:13:07,022 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 02:13:07,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:13:07,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821303224] [2023-08-25 02:13:07,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821303224] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:13:07,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:13:07,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 02:13:07,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087123672] [2023-08-25 02:13:07,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:13:07,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:13:07,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:13:07,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:13:07,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:13:07,027 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 185 [2023-08-25 02:13:07,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 12 transitions, 28 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 02:13:07,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:13:07,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 185 [2023-08-25 02:13:07,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:13:07,074 INFO L124 PetriNetUnfolderBase]: 59/114 cut-off events. [2023-08-25 02:13:07,074 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:13:07,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 114 events. 59/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 333 event pairs, 24 based on Foata normal form. 2/116 useless extension candidates. Maximal degree in co-relation 238. Up to 107 conditions per place. [2023-08-25 02:13:07,075 INFO L140 encePairwiseOnDemand]: 181/185 looper letters, 15 selfloop transitions, 3 changer transitions 0/18 dead transitions. [2023-08-25 02:13:07,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 18 transitions, 78 flow [2023-08-25 02:13:07,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:13:07,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:13:07,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions. [2023-08-25 02:13:07,077 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36936936936936937 [2023-08-25 02:13:07,077 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 205 transitions. [2023-08-25 02:13:07,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 205 transitions. [2023-08-25 02:13:07,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:13:07,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 205 transitions. [2023-08-25 02:13:07,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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 02:13:07,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 02:13:07,081 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 02:13:07,081 INFO L175 Difference]: Start difference. First operand has 19 places, 12 transitions, 28 flow. Second operand 3 states and 205 transitions. [2023-08-25 02:13:07,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 18 transitions, 78 flow [2023-08-25 02:13:07,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 02:13:07,082 INFO L231 Difference]: Finished difference. Result has 21 places, 14 transitions, 47 flow [2023-08-25 02:13:07,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=21, PETRI_TRANSITIONS=14} [2023-08-25 02:13:07,083 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -15 predicate places. [2023-08-25 02:13:07,083 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 14 transitions, 47 flow [2023-08-25 02:13:07,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 02:13:07,083 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:13:07,083 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:13:07,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 02:13:07,084 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 02:13:07,084 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:13:07,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1591823717, now seen corresponding path program 1 times [2023-08-25 02:13:07,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:13:07,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237707775] [2023-08-25 02:13:07,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:13:07,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:13:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:13:07,251 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 02:13:07,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:13:07,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237707775] [2023-08-25 02:13:07,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237707775] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:13:07,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:13:07,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:13:07,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973445951] [2023-08-25 02:13:07,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:13:07,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:13:07,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:13:07,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:13:07,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:13:07,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 185 [2023-08-25 02:13:07,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 14 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 02:13:07,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:13:07,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 185 [2023-08-25 02:13:07,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:13:07,297 INFO L124 PetriNetUnfolderBase]: 27/66 cut-off events. [2023-08-25 02:13:07,298 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-25 02:13:07,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 66 events. 27/66 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 153 event pairs, 9 based on Foata normal form. 9/75 useless extension candidates. Maximal degree in co-relation 169. Up to 43 conditions per place. [2023-08-25 02:13:07,299 INFO L140 encePairwiseOnDemand]: 181/185 looper letters, 19 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2023-08-25 02:13:07,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 22 transitions, 113 flow [2023-08-25 02:13:07,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:13:07,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:13:07,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2023-08-25 02:13:07,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.372972972972973 [2023-08-25 02:13:07,303 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 207 transitions. [2023-08-25 02:13:07,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 207 transitions. [2023-08-25 02:13:07,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:13:07,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 207 transitions. [2023-08-25 02:13:07,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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 02:13:07,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 02:13:07,308 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 02:13:07,308 INFO L175 Difference]: Start difference. First operand has 21 places, 14 transitions, 47 flow. Second operand 3 states and 207 transitions. [2023-08-25 02:13:07,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 22 transitions, 113 flow [2023-08-25 02:13:07,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 22 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 02:13:07,309 INFO L231 Difference]: Finished difference. Result has 23 places, 16 transitions, 63 flow [2023-08-25 02:13:07,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=23, PETRI_TRANSITIONS=16} [2023-08-25 02:13:07,310 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -13 predicate places. [2023-08-25 02:13:07,310 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 63 flow [2023-08-25 02:13:07,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 02:13:07,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:13:07,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:13:07,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 02:13:07,315 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 02:13:07,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:13:07,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1151686708, now seen corresponding path program 1 times [2023-08-25 02:13:07,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:13:07,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817406224] [2023-08-25 02:13:07,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:13:07,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:13:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:13:07,483 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 02:13:07,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:13:07,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817406224] [2023-08-25 02:13:07,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817406224] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:13:07,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:13:07,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 02:13:07,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571958889] [2023-08-25 02:13:07,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:13:07,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 02:13:07,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:13:07,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 02:13:07,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 02:13:07,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 185 [2023-08-25 02:13:07,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 63 flow. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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 02:13:07,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:13:07,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 185 [2023-08-25 02:13:07,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:13:07,524 INFO L124 PetriNetUnfolderBase]: 15/42 cut-off events. [2023-08-25 02:13:07,525 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-25 02:13:07,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 42 events. 15/42 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 74 event pairs, 7 based on Foata normal form. 6/48 useless extension candidates. Maximal degree in co-relation 126. Up to 24 conditions per place. [2023-08-25 02:13:07,525 INFO L140 encePairwiseOnDemand]: 181/185 looper letters, 17 selfloop transitions, 5 changer transitions 0/22 dead transitions. [2023-08-25 02:13:07,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 22 transitions, 125 flow [2023-08-25 02:13:07,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 02:13:07,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 02:13:07,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2023-08-25 02:13:07,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3635135135135135 [2023-08-25 02:13:07,528 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 269 transitions. [2023-08-25 02:13:07,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 269 transitions. [2023-08-25 02:13:07,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:13:07,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 269 transitions. [2023-08-25 02:13:07,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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 02:13:07,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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 02:13:07,531 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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 02:13:07,532 INFO L175 Difference]: Start difference. First operand has 23 places, 16 transitions, 63 flow. Second operand 4 states and 269 transitions. [2023-08-25 02:13:07,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 22 transitions, 125 flow [2023-08-25 02:13:07,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 22 transitions, 120 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 02:13:07,533 INFO L231 Difference]: Finished difference. Result has 26 places, 16 transitions, 74 flow [2023-08-25 02:13:07,533 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=26, PETRI_TRANSITIONS=16} [2023-08-25 02:13:07,534 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -10 predicate places. [2023-08-25 02:13:07,534 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 16 transitions, 74 flow [2023-08-25 02:13:07,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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 02:13:07,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:13:07,534 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:13:07,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 02:13:07,535 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 02:13:07,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:13:07,535 INFO L85 PathProgramCache]: Analyzing trace with hash 379154640, now seen corresponding path program 1 times [2023-08-25 02:13:07,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:13:07,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764401310] [2023-08-25 02:13:07,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:13:07,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:13:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:13:07,568 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 02:13:07,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:13:07,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764401310] [2023-08-25 02:13:07,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764401310] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:13:07,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:13:07,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:13:07,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582413093] [2023-08-25 02:13:07,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:13:07,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:13:07,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:13:07,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:13:07,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:13:07,571 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 185 [2023-08-25 02:13:07,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 02:13:07,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:13:07,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 185 [2023-08-25 02:13:07,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:13:07,601 INFO L124 PetriNetUnfolderBase]: 16/50 cut-off events. [2023-08-25 02:13:07,606 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2023-08-25 02:13:07,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 50 events. 16/50 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 104 event pairs, 9 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 161. Up to 38 conditions per place. [2023-08-25 02:13:07,607 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 13 selfloop transitions, 2 changer transitions 7/22 dead transitions. [2023-08-25 02:13:07,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 22 transitions, 154 flow [2023-08-25 02:13:07,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:13:07,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:13:07,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 204 transitions. [2023-08-25 02:13:07,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3675675675675676 [2023-08-25 02:13:07,609 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 204 transitions. [2023-08-25 02:13:07,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 204 transitions. [2023-08-25 02:13:07,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:13:07,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 204 transitions. [2023-08-25 02:13:07,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 02:13:07,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 02:13:07,612 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 02:13:07,612 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 74 flow. Second operand 3 states and 204 transitions. [2023-08-25 02:13:07,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 22 transitions, 154 flow [2023-08-25 02:13:07,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 136 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-25 02:13:07,614 INFO L231 Difference]: Finished difference. Result has 27 places, 14 transitions, 64 flow [2023-08-25 02:13:07,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=27, PETRI_TRANSITIONS=14} [2023-08-25 02:13:07,616 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -9 predicate places. [2023-08-25 02:13:07,616 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 14 transitions, 64 flow [2023-08-25 02:13:07,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 02:13:07,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:13:07,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:13:07,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 02:13:07,617 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 02:13:07,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:13:07,618 INFO L85 PathProgramCache]: Analyzing trace with hash 504977248, now seen corresponding path program 2 times [2023-08-25 02:13:07,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:13:07,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305895312] [2023-08-25 02:13:07,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:13:07,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:13:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:13:07,662 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 02:13:07,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:13:07,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305895312] [2023-08-25 02:13:07,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305895312] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:13:07,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:13:07,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 02:13:07,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223440853] [2023-08-25 02:13:07,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:13:07,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 02:13:07,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:13:07,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 02:13:07,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 02:13:07,665 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 185 [2023-08-25 02:13:07,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 14 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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 02:13:07,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:13:07,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 185 [2023-08-25 02:13:07,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:13:07,697 INFO L124 PetriNetUnfolderBase]: 3/17 cut-off events. [2023-08-25 02:13:07,697 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-08-25 02:13:07,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 17 events. 3/17 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 1 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 60. Up to 7 conditions per place. [2023-08-25 02:13:07,697 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-08-25 02:13:07,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 14 transitions, 94 flow [2023-08-25 02:13:07,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 02:13:07,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 02:13:07,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 257 transitions. [2023-08-25 02:13:07,699 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3472972972972973 [2023-08-25 02:13:07,699 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 257 transitions. [2023-08-25 02:13:07,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 257 transitions. [2023-08-25 02:13:07,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:13:07,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 257 transitions. [2023-08-25 02:13:07,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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 02:13:07,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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 02:13:07,703 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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 02:13:07,703 INFO L175 Difference]: Start difference. First operand has 27 places, 14 transitions, 64 flow. Second operand 4 states and 257 transitions. [2023-08-25 02:13:07,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 14 transitions, 94 flow [2023-08-25 02:13:07,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 14 transitions, 82 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-08-25 02:13:07,704 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2023-08-25 02:13:07,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2023-08-25 02:13:07,707 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -12 predicate places. [2023-08-25 02:13:07,707 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2023-08-25 02:13:07,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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 02:13:07,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (27 of 28 remaining) [2023-08-25 02:13:07,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2023-08-25 02:13:07,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2023-08-25 02:13:07,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2023-08-25 02:13:07,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2023-08-25 02:13:07,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2023-08-25 02:13:07,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (21 of 28 remaining) [2023-08-25 02:13:07,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2023-08-25 02:13:07,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2023-08-25 02:13:07,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2023-08-25 02:13:07,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2023-08-25 02:13:07,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2023-08-25 02:13:07,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2023-08-25 02:13:07,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2023-08-25 02:13:07,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2023-08-25 02:13:07,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2023-08-25 02:13:07,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONASSERT (11 of 28 remaining) [2023-08-25 02:13:07,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 28 remaining) [2023-08-25 02:13:07,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 28 remaining) [2023-08-25 02:13:07,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2023-08-25 02:13:07,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2023-08-25 02:13:07,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2023-08-25 02:13:07,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2023-08-25 02:13:07,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2023-08-25 02:13:07,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2023-08-25 02:13:07,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2023-08-25 02:13:07,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2023-08-25 02:13:07,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2023-08-25 02:13:07,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 02:13:07,714 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-08-25 02:13:07,718 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 02:13:07,718 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 02:13:07,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 02:13:07 BasicIcfg [2023-08-25 02:13:07,725 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 02:13:07,727 INFO L158 Benchmark]: Toolchain (without parser) took 5014.53ms. Allocated memory is still 354.4MB. Free memory was 307.3MB in the beginning and 153.4MB in the end (delta: 153.9MB). Peak memory consumption was 155.0MB. Max. memory is 16.0GB. [2023-08-25 02:13:07,728 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 354.4MB. Free memory is still 331.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 02:13:07,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.37ms. Allocated memory is still 354.4MB. Free memory was 307.3MB in the beginning and 287.4MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 02:13:07,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.31ms. Allocated memory is still 354.4MB. Free memory was 287.4MB in the beginning and 285.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 02:13:07,728 INFO L158 Benchmark]: Boogie Preprocessor took 40.99ms. Allocated memory is still 354.4MB. Free memory was 285.3MB in the beginning and 284.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 02:13:07,729 INFO L158 Benchmark]: RCFGBuilder took 487.41ms. Allocated memory is still 354.4MB. Free memory was 283.2MB in the beginning and 259.1MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-25 02:13:07,729 INFO L158 Benchmark]: TraceAbstraction took 3980.22ms. Allocated memory is still 354.4MB. Free memory was 259.1MB in the beginning and 153.4MB in the end (delta: 105.7MB). Peak memory consumption was 106.7MB. Max. memory is 16.0GB. [2023-08-25 02:13:07,732 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 354.4MB. Free memory is still 331.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 448.37ms. Allocated memory is still 354.4MB. Free memory was 307.3MB in the beginning and 287.4MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 51.31ms. Allocated memory is still 354.4MB. Free memory was 287.4MB in the beginning and 285.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 40.99ms. Allocated memory is still 354.4MB. Free memory was 285.3MB in the beginning and 284.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 487.41ms. Allocated memory is still 354.4MB. Free memory was 283.2MB in the beginning and 259.1MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 3980.22ms. Allocated memory is still 354.4MB. Free memory was 259.1MB in the beginning and 153.4MB in the end (delta: 105.7MB). Peak memory consumption was 106.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 93 PlacesBefore, 36 PlacesAfterwards, 89 TransitionsBefore, 29 TransitionsAfterwards, 2096 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 3 ChoiceCompositions, 94 TotalNumberOfCompositions, 6222 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3293, independent: 3133, independent conditional: 0, independent unconditional: 3133, dependent: 160, dependent conditional: 0, dependent unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1301, independent: 1259, independent conditional: 0, independent unconditional: 1259, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3293, independent: 1874, independent conditional: 0, independent unconditional: 1874, dependent: 118, dependent conditional: 0, dependent unconditional: 118, unknown: 1301, unknown conditional: 0, unknown unconditional: 1301] , Statistics on independence cache: Total cache size (in pairs): 116, Positive cache size: 103, Positive conditional cache size: 0, Positive unconditional cache size: 103, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 740]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 745]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 745]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 765]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 765]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 767]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 771]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 771]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 771]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 773]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 114 locations, 28 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 134 IncrementalHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 134 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 97 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 02:13:07,755 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...