./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c8af2e9e80aefb6a93651d6c869df13510f679bd9566c8571973545c9393aab5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:28:24,903 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:28:24,976 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:28:24,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:28:24,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:28:25,012 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:28:25,013 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:28:25,013 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:28:25,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:28:25,014 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:28:25,015 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:28:25,015 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:28:25,016 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:28:25,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:28:25,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:28:25,017 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:28:25,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:28:25,020 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:28:25,021 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:28:25,021 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:28:25,021 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:28:25,022 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:28:25,022 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:28:25,022 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:28:25,026 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:28:25,026 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:28:25,027 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:28:25,027 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:28:25,027 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:28:25,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:28:25,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:28:25,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:28:25,028 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:28:25,028 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:28:25,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:28:25,029 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:28:25,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:28:25,029 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:28:25,031 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:28:25,031 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:28:25,031 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:28:25,032 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8af2e9e80aefb6a93651d6c869df13510f679bd9566c8571973545c9393aab5 [2024-10-24 15:28:25,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:28:25,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:28:25,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:28:25,324 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:28:25,325 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:28:25,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i [2024-10-24 15:28:26,818 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:28:27,061 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:28:27,062 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i [2024-10-24 15:28:27,094 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82af5ef31/7f77548b28d443efb7babe1ab1b1f1dd/FLAG0cc773257 [2024-10-24 15:28:27,380 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82af5ef31/7f77548b28d443efb7babe1ab1b1f1dd [2024-10-24 15:28:27,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:28:27,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:28:27,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:28:27,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:28:27,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:28:27,391 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:28:27" (1/1) ... [2024-10-24 15:28:27,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d8d8bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:27, skipping insertion in model container [2024-10-24 15:28:27,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:28:27" (1/1) ... [2024-10-24 15:28:27,448 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:28:27,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:28:27,893 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:28:27,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:28:28,058 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:28:28,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:28 WrapperNode [2024-10-24 15:28:28,059 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:28:28,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:28:28,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:28:28,061 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:28:28,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:28" (1/1) ... [2024-10-24 15:28:28,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:28" (1/1) ... [2024-10-24 15:28:28,158 INFO L138 Inliner]: procedures = 272, calls = 50, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 389 [2024-10-24 15:28:28,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:28:28,161 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:28:28,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:28:28,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:28:28,168 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:28" (1/1) ... [2024-10-24 15:28:28,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:28" (1/1) ... [2024-10-24 15:28:28,176 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:28" (1/1) ... [2024-10-24 15:28:28,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:28" (1/1) ... [2024-10-24 15:28:28,201 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:28" (1/1) ... [2024-10-24 15:28:28,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:28" (1/1) ... [2024-10-24 15:28:28,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:28" (1/1) ... [2024-10-24 15:28:28,221 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:28" (1/1) ... [2024-10-24 15:28:28,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:28:28,227 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:28:28,227 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:28:28,227 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:28:28,228 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:28" (1/1) ... [2024-10-24 15:28:28,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:28:28,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:28,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:28:28,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:28:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 15:28:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 15:28:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:28:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:28:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:28:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:28:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:28:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 15:28:28,330 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 15:28:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:28:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:28:28,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:28:28,332 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:28:28,514 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:28:28,518 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:28:29,137 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:28:29,137 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:28:29,187 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:28:29,188 INFO L314 CfgBuilder]: Removed 35 assume(true) statements. [2024-10-24 15:28:29,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:28:29 BoogieIcfgContainer [2024-10-24 15:28:29,188 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:28:29,190 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:28:29,190 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:28:29,193 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:28:29,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:28:27" (1/3) ... [2024-10-24 15:28:29,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1e42cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:28:29, skipping insertion in model container [2024-10-24 15:28:29,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:28" (2/3) ... [2024-10-24 15:28:29,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1e42cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:28:29, skipping insertion in model container [2024-10-24 15:28:29,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:28:29" (3/3) ... [2024-10-24 15:28:29,195 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_73-funloop_hard_racefree.i [2024-10-24 15:28:29,211 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:28:29,211 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-10-24 15:28:29,211 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:28:29,306 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 15:28:29,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 345 places, 390 transitions, 787 flow [2024-10-24 15:28:29,538 INFO L124 PetriNetUnfolderBase]: 78/628 cut-off events. [2024-10-24 15:28:29,539 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:28:29,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 628 events. 78/628 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3425 event pairs, 0 based on Foata normal form. 0/518 useless extension candidates. Maximal degree in co-relation 354. Up to 8 conditions per place. [2024-10-24 15:28:29,556 INFO L82 GeneralOperation]: Start removeDead. Operand has 345 places, 390 transitions, 787 flow [2024-10-24 15:28:29,571 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 345 places, 390 transitions, 787 flow [2024-10-24 15:28:29,584 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:28:29,593 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5fa828de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:28:29,594 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-24 15:28:29,605 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:28:29,605 INFO L124 PetriNetUnfolderBase]: 4/60 cut-off events. [2024-10-24 15:28:29,605 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:28:29,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:29,607 INFO L204 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, 1, 1, 1, 1, 1] [2024-10-24 15:28:29,607 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-24 15:28:29,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:29,613 INFO L85 PathProgramCache]: Analyzing trace with hash 354593967, now seen corresponding path program 1 times [2024-10-24 15:28:29,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:29,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424142661] [2024-10-24 15:28:29,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:29,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:29,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:29,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:29,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424142661] [2024-10-24 15:28:29,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424142661] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:29,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:28:29,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:28:29,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705672453] [2024-10-24 15:28:29,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:29,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:28:29,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:29,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:28:29,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:28:29,995 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 390 [2024-10-24 15:28:30,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 390 transitions, 787 flow. Second operand has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 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) [2024-10-24 15:28:30,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:30,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 390 [2024-10-24 15:28:30,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:30,493 INFO L124 PetriNetUnfolderBase]: 181/2323 cut-off events. [2024-10-24 15:28:30,494 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2024-10-24 15:28:30,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2670 conditions, 2323 events. 181/2323 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 19815 event pairs, 136 based on Foata normal form. 404/2527 useless extension candidates. Maximal degree in co-relation 2390. Up to 340 conditions per place. [2024-10-24 15:28:30,512 INFO L140 encePairwiseOnDemand]: 346/390 looper letters, 31 selfloop transitions, 2 changer transitions 0/344 dead transitions. [2024-10-24 15:28:30,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 344 transitions, 761 flow [2024-10-24 15:28:30,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:28:30,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:28:30,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1018 transitions. [2024-10-24 15:28:30,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8700854700854701 [2024-10-24 15:28:30,538 INFO L175 Difference]: Start difference. First operand has 345 places, 390 transitions, 787 flow. Second operand 3 states and 1018 transitions. [2024-10-24 15:28:30,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 344 transitions, 761 flow [2024-10-24 15:28:30,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 344 transitions, 761 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:28:30,554 INFO L231 Difference]: Finished difference. Result has 342 places, 344 transitions, 705 flow [2024-10-24 15:28:30,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=705, PETRI_PLACES=342, PETRI_TRANSITIONS=344} [2024-10-24 15:28:30,562 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, -3 predicate places. [2024-10-24 15:28:30,563 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 344 transitions, 705 flow [2024-10-24 15:28:30,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 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) [2024-10-24 15:28:30,564 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:30,564 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:28:30,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:28:30,565 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-24 15:28:30,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:30,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1610010690, now seen corresponding path program 1 times [2024-10-24 15:28:30,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:30,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406765479] [2024-10-24 15:28:30,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:30,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:30,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:30,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:30,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406765479] [2024-10-24 15:28:30,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406765479] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:30,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940026683] [2024-10-24 15:28:30,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:30,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:30,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:30,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:28:30,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 15:28:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:30,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:28:30,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:30,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:30,933 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:30,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:30,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940026683] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:30,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:30,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-24 15:28:30,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286746563] [2024-10-24 15:28:30,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:30,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 15:28:30,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:30,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 15:28:30,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 15:28:31,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 390 [2024-10-24 15:28:31,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 344 transitions, 705 flow. Second operand has 10 states, 10 states have (on average 312.8) internal successors, (3128), 10 states have internal predecessors, (3128), 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) [2024-10-24 15:28:31,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:31,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 390 [2024-10-24 15:28:31,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:31,491 INFO L124 PetriNetUnfolderBase]: 181/2330 cut-off events. [2024-10-24 15:28:31,491 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2024-10-24 15:28:31,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2696 conditions, 2330 events. 181/2330 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 19744 event pairs, 136 based on Foata normal form. 2/2132 useless extension candidates. Maximal degree in co-relation 2660. Up to 340 conditions per place. [2024-10-24 15:28:31,509 INFO L140 encePairwiseOnDemand]: 384/390 looper letters, 35 selfloop transitions, 9 changer transitions 0/352 dead transitions. [2024-10-24 15:28:31,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 352 transitions, 811 flow [2024-10-24 15:28:31,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 15:28:31,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 15:28:31,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2845 transitions. [2024-10-24 15:28:31,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8105413105413105 [2024-10-24 15:28:31,516 INFO L175 Difference]: Start difference. First operand has 342 places, 344 transitions, 705 flow. Second operand 9 states and 2845 transitions. [2024-10-24 15:28:31,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 352 transitions, 811 flow [2024-10-24 15:28:31,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 352 transitions, 809 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:28:31,528 INFO L231 Difference]: Finished difference. Result has 352 places, 350 transitions, 753 flow [2024-10-24 15:28:31,529 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=703, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=753, PETRI_PLACES=352, PETRI_TRANSITIONS=350} [2024-10-24 15:28:31,530 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 7 predicate places. [2024-10-24 15:28:31,530 INFO L471 AbstractCegarLoop]: Abstraction has has 352 places, 350 transitions, 753 flow [2024-10-24 15:28:31,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 312.8) internal successors, (3128), 10 states have internal predecessors, (3128), 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) [2024-10-24 15:28:31,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:31,533 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2024-10-24 15:28:31,552 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 15:28:31,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:31,738 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-24 15:28:31,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:31,739 INFO L85 PathProgramCache]: Analyzing trace with hash 61864034, now seen corresponding path program 2 times [2024-10-24 15:28:31,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:31,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141877717] [2024-10-24 15:28:31,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:31,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:31,965 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:31,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:31,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141877717] [2024-10-24 15:28:31,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141877717] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:31,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975885585] [2024-10-24 15:28:31,966 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:28:31,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:31,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:31,969 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:28:31,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 15:28:32,068 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:28:32,068 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:28:32,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-24 15:28:32,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:32,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 15:28:32,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-24 15:28:32,240 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:32,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-24 15:28:32,294 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:32,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-24 15:28:32,334 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 15:28:32,334 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:28:32,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975885585] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:32,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:28:32,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-24 15:28:32,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884563075] [2024-10-24 15:28:32,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:32,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 15:28:32,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:32,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 15:28:32,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-24 15:28:32,801 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 390 [2024-10-24 15:28:32,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 350 transitions, 753 flow. Second operand has 8 states, 8 states have (on average 242.125) internal successors, (1937), 8 states have internal predecessors, (1937), 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) [2024-10-24 15:28:32,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:32,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 390 [2024-10-24 15:28:32,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:34,436 INFO L124 PetriNetUnfolderBase]: 2278/8749 cut-off events. [2024-10-24 15:28:34,436 INFO L125 PetriNetUnfolderBase]: For 14/17 co-relation queries the response was YES. [2024-10-24 15:28:34,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13140 conditions, 8749 events. 2278/8749 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 88785 event pairs, 1725 based on Foata normal form. 1/7989 useless extension candidates. Maximal degree in co-relation 13075. Up to 4195 conditions per place. [2024-10-24 15:28:34,484 INFO L140 encePairwiseOnDemand]: 378/390 looper letters, 162 selfloop transitions, 11 changer transitions 0/418 dead transitions. [2024-10-24 15:28:34,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 418 transitions, 1235 flow [2024-10-24 15:28:34,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 15:28:34,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 15:28:34,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2103 transitions. [2024-10-24 15:28:34,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6740384615384616 [2024-10-24 15:28:34,489 INFO L175 Difference]: Start difference. First operand has 352 places, 350 transitions, 753 flow. Second operand 8 states and 2103 transitions. [2024-10-24 15:28:34,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 418 transitions, 1235 flow [2024-10-24 15:28:34,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 418 transitions, 1229 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-24 15:28:34,500 INFO L231 Difference]: Finished difference. Result has 363 places, 357 transitions, 814 flow [2024-10-24 15:28:34,500 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=747, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=814, PETRI_PLACES=363, PETRI_TRANSITIONS=357} [2024-10-24 15:28:34,502 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 18 predicate places. [2024-10-24 15:28:34,502 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 357 transitions, 814 flow [2024-10-24 15:28:34,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 242.125) internal successors, (1937), 8 states have internal predecessors, (1937), 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) [2024-10-24 15:28:34,504 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:34,504 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2024-10-24 15:28:34,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 15:28:34,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-24 15:28:34,705 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-24 15:28:34,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:34,706 INFO L85 PathProgramCache]: Analyzing trace with hash -140062528, now seen corresponding path program 1 times [2024-10-24 15:28:34,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:34,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116259700] [2024-10-24 15:28:34,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:34,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:34,870 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 15:28:34,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:34,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116259700] [2024-10-24 15:28:34,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116259700] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:34,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180854968] [2024-10-24 15:28:34,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:34,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:34,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:34,874 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:28:34,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 15:28:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:34,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 15:28:34,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:35,013 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 15:28:35,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:35,107 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 15:28:35,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180854968] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:35,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:35,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-24 15:28:35,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487665211] [2024-10-24 15:28:35,109 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:35,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 15:28:35,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:35,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 15:28:35,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-24 15:28:35,148 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 390 [2024-10-24 15:28:35,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 357 transitions, 814 flow. Second operand has 18 states, 18 states have (on average 312.94444444444446) internal successors, (5633), 18 states have internal predecessors, (5633), 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) [2024-10-24 15:28:35,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:35,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 390 [2024-10-24 15:28:35,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:35,770 INFO L124 PetriNetUnfolderBase]: 192/2249 cut-off events. [2024-10-24 15:28:35,770 INFO L125 PetriNetUnfolderBase]: For 33/37 co-relation queries the response was YES. [2024-10-24 15:28:35,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2744 conditions, 2249 events. 192/2249 cut-off events. For 33/37 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 19122 event pairs, 138 based on Foata normal form. 4/2057 useless extension candidates. Maximal degree in co-relation 2602. Up to 341 conditions per place. [2024-10-24 15:28:35,784 INFO L140 encePairwiseOnDemand]: 384/390 looper letters, 39 selfloop transitions, 21 changer transitions 0/375 dead transitions. [2024-10-24 15:28:35,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 375 transitions, 1022 flow [2024-10-24 15:28:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 15:28:35,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-24 15:28:35,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6595 transitions. [2024-10-24 15:28:35,797 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8052503052503053 [2024-10-24 15:28:35,797 INFO L175 Difference]: Start difference. First operand has 363 places, 357 transitions, 814 flow. Second operand 21 states and 6595 transitions. [2024-10-24 15:28:35,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 375 transitions, 1022 flow [2024-10-24 15:28:35,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 375 transitions, 1015 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:28:35,807 INFO L231 Difference]: Finished difference. Result has 386 places, 370 transitions, 937 flow [2024-10-24 15:28:35,808 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=937, PETRI_PLACES=386, PETRI_TRANSITIONS=370} [2024-10-24 15:28:35,810 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 41 predicate places. [2024-10-24 15:28:35,810 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 370 transitions, 937 flow [2024-10-24 15:28:35,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 312.94444444444446) internal successors, (5633), 18 states have internal predecessors, (5633), 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) [2024-10-24 15:28:35,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:35,814 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2024-10-24 15:28:35,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 15:28:36,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:36,015 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-24 15:28:36,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:36,016 INFO L85 PathProgramCache]: Analyzing trace with hash -2131183360, now seen corresponding path program 2 times [2024-10-24 15:28:36,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:36,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044883272] [2024-10-24 15:28:36,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:36,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:36,369 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 15:28:36,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:36,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044883272] [2024-10-24 15:28:36,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044883272] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:36,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514713218] [2024-10-24 15:28:36,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:28:36,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:36,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:36,373 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:28:36,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 15:28:36,463 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:28:36,464 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:28:36,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 15:28:36,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:36,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-24 15:28:36,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-24 15:28:36,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:36,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-24 15:28:36,605 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:36,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-24 15:28:36,650 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-24 15:28:36,650 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:28:36,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514713218] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:36,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:28:36,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-24 15:28:36,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215508822] [2024-10-24 15:28:36,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:36,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:28:36,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:36,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:28:36,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-24 15:28:37,006 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 390 [2024-10-24 15:28:37,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 370 transitions, 937 flow. Second operand has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 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) [2024-10-24 15:28:37,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:37,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 390 [2024-10-24 15:28:37,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:38,677 INFO L124 PetriNetUnfolderBase]: 2359/8962 cut-off events. [2024-10-24 15:28:38,678 INFO L125 PetriNetUnfolderBase]: For 374/378 co-relation queries the response was YES. [2024-10-24 15:28:38,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14042 conditions, 8962 events. 2359/8962 cut-off events. For 374/378 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 90741 event pairs, 1820 based on Foata normal form. 29/8240 useless extension candidates. Maximal degree in co-relation 13893. Up to 4322 conditions per place. [2024-10-24 15:28:38,737 INFO L140 encePairwiseOnDemand]: 363/390 looper letters, 135 selfloop transitions, 92 changer transitions 0/486 dead transitions. [2024-10-24 15:28:38,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 486 transitions, 1645 flow [2024-10-24 15:28:38,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:28:38,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:28:38,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1674 transitions. [2024-10-24 15:28:38,819 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7153846153846154 [2024-10-24 15:28:38,819 INFO L175 Difference]: Start difference. First operand has 386 places, 370 transitions, 937 flow. Second operand 6 states and 1674 transitions. [2024-10-24 15:28:38,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 486 transitions, 1645 flow [2024-10-24 15:28:38,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 486 transitions, 1621 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-24 15:28:38,833 INFO L231 Difference]: Finished difference. Result has 390 places, 454 transitions, 1521 flow [2024-10-24 15:28:38,834 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1521, PETRI_PLACES=390, PETRI_TRANSITIONS=454} [2024-10-24 15:28:38,834 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 45 predicate places. [2024-10-24 15:28:38,835 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 454 transitions, 1521 flow [2024-10-24 15:28:38,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 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) [2024-10-24 15:28:38,836 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:38,836 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-24 15:28:38,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 15:28:39,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:39,041 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-24 15:28:39,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:39,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1642173509, now seen corresponding path program 1 times [2024-10-24 15:28:39,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:39,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532974165] [2024-10-24 15:28:39,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:39,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:39,354 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 15:28:39,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:39,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532974165] [2024-10-24 15:28:39,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532974165] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:39,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335416337] [2024-10-24 15:28:39,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:39,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:39,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:39,357 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:28:39,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 15:28:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:39,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 15:28:39,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:39,548 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 15:28:39,548 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:39,759 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 15:28:39,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335416337] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:39,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:39,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-24 15:28:39,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028506925] [2024-10-24 15:28:39,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:39,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 15:28:39,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:39,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 15:28:39,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-24 15:28:39,793 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 390 [2024-10-24 15:28:39,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 454 transitions, 1521 flow. Second operand has 23 states, 23 states have (on average 313.04347826086956) internal successors, (7200), 23 states have internal predecessors, (7200), 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) [2024-10-24 15:28:39,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:39,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 390 [2024-10-24 15:28:39,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:40,626 INFO L124 PetriNetUnfolderBase]: 340/3019 cut-off events. [2024-10-24 15:28:40,626 INFO L125 PetriNetUnfolderBase]: For 559/627 co-relation queries the response was YES. [2024-10-24 15:28:40,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4562 conditions, 3019 events. 340/3019 cut-off events. For 559/627 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 27461 event pairs, 136 based on Foata normal form. 3/2784 useless extension candidates. Maximal degree in co-relation 4333. Up to 418 conditions per place. [2024-10-24 15:28:40,647 INFO L140 encePairwiseOnDemand]: 384/390 looper letters, 42 selfloop transitions, 30 changer transitions 0/471 dead transitions. [2024-10-24 15:28:40,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 471 transitions, 1787 flow [2024-10-24 15:28:40,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-24 15:28:40,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-24 15:28:40,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9405 transitions. [2024-10-24 15:28:40,672 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8038461538461539 [2024-10-24 15:28:40,673 INFO L175 Difference]: Start difference. First operand has 390 places, 454 transitions, 1521 flow. Second operand 30 states and 9405 transitions. [2024-10-24 15:28:40,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 471 transitions, 1787 flow [2024-10-24 15:28:40,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 471 transitions, 1769 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-24 15:28:40,687 INFO L231 Difference]: Finished difference. Result has 423 places, 464 transitions, 1655 flow [2024-10-24 15:28:40,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=1503, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1655, PETRI_PLACES=423, PETRI_TRANSITIONS=464} [2024-10-24 15:28:40,688 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 78 predicate places. [2024-10-24 15:28:40,688 INFO L471 AbstractCegarLoop]: Abstraction has has 423 places, 464 transitions, 1655 flow [2024-10-24 15:28:40,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 313.04347826086956) internal successors, (7200), 23 states have internal predecessors, (7200), 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) [2024-10-24 15:28:40,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:40,691 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-24 15:28:40,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 15:28:40,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:40,892 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-24 15:28:40,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:40,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1802028206, now seen corresponding path program 2 times [2024-10-24 15:28:40,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:40,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383863462] [2024-10-24 15:28:40,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:40,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:28:40,939 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:28:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:28:41,041 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 15:28:41,042 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:28:41,043 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-10-24 15:28:41,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-10-24 15:28:41,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-10-24 15:28:41,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-10-24 15:28:41,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-10-24 15:28:41,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-10-24 15:28:41,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-10-24 15:28:41,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-10-24 15:28:41,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-10-24 15:28:41,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-10-24 15:28:41,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-10-24 15:28:41,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-10-24 15:28:41,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-10-24 15:28:41,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-10-24 15:28:41,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-10-24 15:28:41,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-10-24 15:28:41,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-10-24 15:28:41,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-10-24 15:28:41,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-10-24 15:28:41,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-10-24 15:28:41,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-10-24 15:28:41,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-10-24 15:28:41,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-10-24 15:28:41,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 15:28:41,049 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-10-24 15:28:41,052 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 15:28:41,052 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-24 15:28:41,124 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 15:28:41,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 446 places, 505 transitions, 1026 flow [2024-10-24 15:28:41,369 INFO L124 PetriNetUnfolderBase]: 126/1009 cut-off events. [2024-10-24 15:28:41,369 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-24 15:28:41,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 1009 events. 126/1009 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6191 event pairs, 0 based on Foata normal form. 0/832 useless extension candidates. Maximal degree in co-relation 630. Up to 12 conditions per place. [2024-10-24 15:28:41,384 INFO L82 GeneralOperation]: Start removeDead. Operand has 446 places, 505 transitions, 1026 flow [2024-10-24 15:28:41,391 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 446 places, 505 transitions, 1026 flow [2024-10-24 15:28:41,392 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:28:41,393 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5fa828de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:28:41,393 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-10-24 15:28:41,397 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:28:41,397 INFO L124 PetriNetUnfolderBase]: 4/60 cut-off events. [2024-10-24 15:28:41,397 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:28:41,397 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:41,397 INFO L204 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, 1, 1, 1, 1, 1] [2024-10-24 15:28:41,397 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-24 15:28:41,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:41,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1380409905, now seen corresponding path program 1 times [2024-10-24 15:28:41,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:41,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051576779] [2024-10-24 15:28:41,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:41,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:41,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:41,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:41,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051576779] [2024-10-24 15:28:41,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051576779] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:41,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:28:41,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:28:41,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503535650] [2024-10-24 15:28:41,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:41,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:28:41,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:41,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:28:41,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:28:41,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 505 [2024-10-24 15:28:41,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 505 transitions, 1026 flow. Second operand has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 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) [2024-10-24 15:28:41,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:41,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 505 [2024-10-24 15:28:41,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:44,919 INFO L124 PetriNetUnfolderBase]: 3251/22828 cut-off events. [2024-10-24 15:28:44,920 INFO L125 PetriNetUnfolderBase]: For 151/155 co-relation queries the response was YES. [2024-10-24 15:28:45,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27608 conditions, 22828 events. 3251/22828 cut-off events. For 151/155 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 311078 event pairs, 2680 based on Foata normal form. 5658/26597 useless extension candidates. Maximal degree in co-relation 24734. Up to 4707 conditions per place. [2024-10-24 15:28:45,097 INFO L140 encePairwiseOnDemand]: 448/505 looper letters, 41 selfloop transitions, 2 changer transitions 0/444 dead transitions. [2024-10-24 15:28:45,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 444 transitions, 990 flow [2024-10-24 15:28:45,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:28:45,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:28:45,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2024-10-24 15:28:45,101 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8673267326732673 [2024-10-24 15:28:45,101 INFO L175 Difference]: Start difference. First operand has 446 places, 505 transitions, 1026 flow. Second operand 3 states and 1314 transitions. [2024-10-24 15:28:45,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 444 transitions, 990 flow [2024-10-24 15:28:45,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 444 transitions, 990 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:28:45,109 INFO L231 Difference]: Finished difference. Result has 441 places, 444 transitions, 914 flow [2024-10-24 15:28:45,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=914, PETRI_PLACES=441, PETRI_TRANSITIONS=444} [2024-10-24 15:28:45,111 INFO L277 CegarLoopForPetriNet]: 446 programPoint places, -5 predicate places. [2024-10-24 15:28:45,111 INFO L471 AbstractCegarLoop]: Abstraction has has 441 places, 444 transitions, 914 flow [2024-10-24 15:28:45,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 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) [2024-10-24 15:28:45,112 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:45,112 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:28:45,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 15:28:45,112 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-24 15:28:45,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:45,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1875125979, now seen corresponding path program 1 times [2024-10-24 15:28:45,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:45,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523727004] [2024-10-24 15:28:45,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:45,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:45,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:45,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:45,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523727004] [2024-10-24 15:28:45,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523727004] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:45,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776217663] [2024-10-24 15:28:45,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:45,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:45,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:45,163 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:28:45,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 15:28:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:45,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:28:45,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:45,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:45,279 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:45,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:45,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776217663] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:45,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:45,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-24 15:28:45,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150764548] [2024-10-24 15:28:45,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:45,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 15:28:45,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:45,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 15:28:45,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 15:28:45,328 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 505 [2024-10-24 15:28:45,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 444 transitions, 914 flow. Second operand has 10 states, 10 states have (on average 403.8) internal successors, (4038), 10 states have internal predecessors, (4038), 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) [2024-10-24 15:28:45,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:45,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 505 [2024-10-24 15:28:45,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:48,308 INFO L124 PetriNetUnfolderBase]: 3251/22835 cut-off events. [2024-10-24 15:28:48,309 INFO L125 PetriNetUnfolderBase]: For 152/156 co-relation queries the response was YES. [2024-10-24 15:28:48,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27634 conditions, 22835 events. 3251/22835 cut-off events. For 152/156 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 311382 event pairs, 2680 based on Foata normal form. 2/20948 useless extension candidates. Maximal degree in co-relation 27597. Up to 4707 conditions per place. [2024-10-24 15:28:48,484 INFO L140 encePairwiseOnDemand]: 499/505 looper letters, 45 selfloop transitions, 9 changer transitions 0/452 dead transitions. [2024-10-24 15:28:48,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 452 transitions, 1040 flow [2024-10-24 15:28:48,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 15:28:48,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 15:28:48,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3674 transitions. [2024-10-24 15:28:48,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8083608360836083 [2024-10-24 15:28:48,492 INFO L175 Difference]: Start difference. First operand has 441 places, 444 transitions, 914 flow. Second operand 9 states and 3674 transitions. [2024-10-24 15:28:48,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 452 transitions, 1040 flow [2024-10-24 15:28:48,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 452 transitions, 1038 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:28:48,502 INFO L231 Difference]: Finished difference. Result has 451 places, 450 transitions, 962 flow [2024-10-24 15:28:48,503 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=912, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=962, PETRI_PLACES=451, PETRI_TRANSITIONS=450} [2024-10-24 15:28:48,505 INFO L277 CegarLoopForPetriNet]: 446 programPoint places, 5 predicate places. [2024-10-24 15:28:48,505 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 450 transitions, 962 flow [2024-10-24 15:28:48,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 403.8) internal successors, (4038), 10 states have internal predecessors, (4038), 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) [2024-10-24 15:28:48,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:48,507 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2024-10-24 15:28:48,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 15:28:48,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:48,709 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-24 15:28:48,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:48,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1739394907, now seen corresponding path program 2 times [2024-10-24 15:28:48,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:48,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529238863] [2024-10-24 15:28:48,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:48,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:48,832 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:48,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:48,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529238863] [2024-10-24 15:28:48,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529238863] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:48,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805432068] [2024-10-24 15:28:48,834 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:28:48,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:48,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:48,836 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:28:48,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 15:28:48,924 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:28:48,924 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:28:48,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-24 15:28:48,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:48,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 15:28:49,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-24 15:28:49,193 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:49,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-24 15:28:49,238 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:49,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-24 15:28:49,272 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 15:28:49,272 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:28:49,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805432068] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:49,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:28:49,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-24 15:28:49,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654746811] [2024-10-24 15:28:49,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:49,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 15:28:49,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:49,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 15:28:49,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-24 15:28:49,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 505 [2024-10-24 15:28:49,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 450 transitions, 962 flow. Second operand has 8 states, 8 states have (on average 313.125) internal successors, (2505), 8 states have internal predecessors, (2505), 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) [2024-10-24 15:28:49,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:49,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 505 [2024-10-24 15:28:49,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand