./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/pthread-ext/08_rand_cas-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/08_rand_cas-race.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 adb74bb4036ab42451aee4c4c2c855416fb34747e80c1114ce822e44c6b19376 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 16:47:00,464 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 16:47:00,526 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 16:47:00,532 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 16:47:00,533 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 16:47:00,554 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 16:47:00,555 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 16:47:00,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 16:47:00,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 16:47:00,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 16:47:00,556 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 16:47:00,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 16:47:00,556 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 16:47:00,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 16:47:00,557 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 16:47:00,557 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 16:47:00,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 16:47:00,558 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 16:47:00,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 16:47:00,558 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 16:47:00,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 16:47:00,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 16:47:00,559 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 16:47:00,559 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 16:47:00,560 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 16:47:00,560 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 16:47:00,560 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 16:47:00,560 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 16:47:00,561 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 16:47:00,561 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 16:47:00,561 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 16:47:00,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:47:00,561 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 16:47:00,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 16:47:00,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 16:47:00,562 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 16:47:00,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 16:47:00,562 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 16:47:00,563 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 16:47:00,563 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 16:47:00,563 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 16:47:00,565 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adb74bb4036ab42451aee4c4c2c855416fb34747e80c1114ce822e44c6b19376 [2024-10-11 16:47:00,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 16:47:00,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 16:47:00,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 16:47:00,786 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 16:47:00,787 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 16:47:00,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/08_rand_cas-race.i [2024-10-11 16:47:01,965 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 16:47:02,139 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 16:47:02,140 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/08_rand_cas-race.i [2024-10-11 16:47:02,154 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/2cdbafc7f/e641b1d1fbfb45c1a6ea9f9c51f3fd37/FLAGb1457931b [2024-10-11 16:47:02,524 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/2cdbafc7f/e641b1d1fbfb45c1a6ea9f9c51f3fd37 [2024-10-11 16:47:02,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 16:47:02,528 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 16:47:02,529 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 16:47:02,529 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 16:47:02,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 16:47:02,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:47:02" (1/1) ... [2024-10-11 16:47:02,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c19e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:47:02, skipping insertion in model container [2024-10-11 16:47:02,542 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:47:02" (1/1) ... [2024-10-11 16:47:02,581 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 16:47:02,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:47:02,852 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 16:47:02,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:47:02,928 INFO L204 MainTranslator]: Completed translation [2024-10-11 16:47:02,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:47:02 WrapperNode [2024-10-11 16:47:02,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 16:47:02,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 16:47:02,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 16:47:02,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 16:47:02,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:47:02" (1/1) ... [2024-10-11 16:47:02,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:47:02" (1/1) ... [2024-10-11 16:47:02,985 INFO L138 Inliner]: procedures = 176, calls = 34, calls flagged for inlining = 16, calls inlined = 17, statements flattened = 219 [2024-10-11 16:47:02,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 16:47:02,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 16:47:02,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 16:47:02,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 16:47:02,994 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:47:02" (1/1) ... [2024-10-11 16:47:02,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:47:02" (1/1) ... [2024-10-11 16:47:02,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:47:02" (1/1) ... [2024-10-11 16:47:02,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:47:02" (1/1) ... [2024-10-11 16:47:03,009 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:47:02" (1/1) ... [2024-10-11 16:47:03,012 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:47:02" (1/1) ... [2024-10-11 16:47:03,014 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:47:02" (1/1) ... [2024-10-11 16:47:03,015 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:47:02" (1/1) ... [2024-10-11 16:47:03,020 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 16:47:03,021 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 16:47:03,021 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 16:47:03,021 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 16:47:03,022 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:47:02" (1/1) ... [2024-10-11 16:47:03,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:47:03,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:47:03,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 16:47:03,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 16:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 16:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-11 16:47:03,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-11 16:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 16:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 16:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 16:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 16:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 16:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 16:47:03,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 16:47:03,081 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 16:47:03,176 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 16:47:03,177 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 16:47:03,465 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 16:47:03,467 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 16:47:03,634 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 16:47:03,634 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-11 16:47:03,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:47:03 BoogieIcfgContainer [2024-10-11 16:47:03,635 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 16:47:03,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 16:47:03,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 16:47:03,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 16:47:03,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:47:02" (1/3) ... [2024-10-11 16:47:03,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488dbf57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:47:03, skipping insertion in model container [2024-10-11 16:47:03,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:47:02" (2/3) ... [2024-10-11 16:47:03,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488dbf57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:47:03, skipping insertion in model container [2024-10-11 16:47:03,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:47:03" (3/3) ... [2024-10-11 16:47:03,641 INFO L112 eAbstractionObserver]: Analyzing ICFG 08_rand_cas-race.i [2024-10-11 16:47:03,654 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 16:47:03,654 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-11 16:47:03,655 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 16:47:03,722 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 16:47:03,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 177 transitions, 358 flow [2024-10-11 16:47:03,808 INFO L124 PetriNetUnfolderBase]: 17/186 cut-off events. [2024-10-11 16:47:03,809 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:47:03,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 186 events. 17/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 337 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 161. Up to 4 conditions per place. [2024-10-11 16:47:03,815 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 177 transitions, 358 flow [2024-10-11 16:47:03,819 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 177 transitions, 358 flow [2024-10-11 16:47:03,826 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:47:03,833 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;@3c62acad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:47:03,833 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-10-11 16:47:03,837 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:47:03,838 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-10-11 16:47:03,838 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:47:03,838 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:47:03,838 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] [2024-10-11 16:47:03,839 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-10-11 16:47:03,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:47:03,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1827644567, now seen corresponding path program 1 times [2024-10-11 16:47:03,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:47:03,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425349720] [2024-10-11 16:47:03,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:47:03,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:47:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:47:03,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:47:04,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:47:04,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425349720] [2024-10-11 16:47:04,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425349720] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:47:04,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:47:04,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 16:47:04,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640423703] [2024-10-11 16:47:04,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:47:04,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 16:47:04,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:47:04,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 16:47:04,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 16:47:04,035 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 177 [2024-10-11 16:47:04,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 177 transitions, 358 flow. Second operand has 2 states, 2 states have (on average 147.0) internal successors, (294), 2 states have internal predecessors, (294), 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) [2024-10-11 16:47:04,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:47:04,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 177 [2024-10-11 16:47:04,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:47:04,121 INFO L124 PetriNetUnfolderBase]: 4/148 cut-off events. [2024-10-11 16:47:04,121 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 16:47:04,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 148 events. 4/148 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 139 event pairs, 0 based on Foata normal form. 14/149 useless extension candidates. Maximal degree in co-relation 132. Up to 6 conditions per place. [2024-10-11 16:47:04,123 INFO L140 encePairwiseOnDemand]: 154/177 looper letters, 5 selfloop transitions, 0 changer transitions 0/144 dead transitions. [2024-10-11 16:47:04,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 144 transitions, 302 flow [2024-10-11 16:47:04,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 16:47:04,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 16:47:04,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 320 transitions. [2024-10-11 16:47:04,133 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.903954802259887 [2024-10-11 16:47:04,134 INFO L175 Difference]: Start difference. First operand has 164 places, 177 transitions, 358 flow. Second operand 2 states and 320 transitions. [2024-10-11 16:47:04,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 144 transitions, 302 flow [2024-10-11 16:47:04,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 144 transitions, 302 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:47:04,139 INFO L231 Difference]: Finished difference. Result has 144 places, 144 transitions, 292 flow [2024-10-11 16:47:04,141 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=292, PETRI_PLACES=144, PETRI_TRANSITIONS=144} [2024-10-11 16:47:04,143 INFO L277 CegarLoopForPetriNet]: 164 programPoint places, -20 predicate places. [2024-10-11 16:47:04,143 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 144 transitions, 292 flow [2024-10-11 16:47:04,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 147.0) internal successors, (294), 2 states have internal predecessors, (294), 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) [2024-10-11 16:47:04,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:47:04,144 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] [2024-10-11 16:47:04,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 16:47:04,144 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-10-11 16:47:04,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:47:04,145 INFO L85 PathProgramCache]: Analyzing trace with hash -275172454, now seen corresponding path program 1 times [2024-10-11 16:47:04,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:47:04,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620093631] [2024-10-11 16:47:04,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:47:04,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:47:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:47:04,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:47:04,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:47:04,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620093631] [2024-10-11 16:47:04,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620093631] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:47:04,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:47:04,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:47:04,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999521017] [2024-10-11 16:47:04,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:47:04,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:47:04,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:47:04,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:47:04,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:47:04,213 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 177 [2024-10-11 16:47:04,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 144 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 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) [2024-10-11 16:47:04,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:47:04,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 177 [2024-10-11 16:47:04,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:47:04,249 INFO L124 PetriNetUnfolderBase]: 4/147 cut-off events. [2024-10-11 16:47:04,250 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 16:47:04,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 147 events. 4/147 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 135 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 157. Up to 5 conditions per place. [2024-10-11 16:47:04,251 INFO L140 encePairwiseOnDemand]: 174/177 looper letters, 6 selfloop transitions, 2 changer transitions 0/143 dead transitions. [2024-10-11 16:47:04,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 143 transitions, 306 flow [2024-10-11 16:47:04,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:47:04,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:47:04,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2024-10-11 16:47:04,257 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8192090395480226 [2024-10-11 16:47:04,257 INFO L175 Difference]: Start difference. First operand has 144 places, 144 transitions, 292 flow. Second operand 3 states and 435 transitions. [2024-10-11 16:47:04,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 143 transitions, 306 flow [2024-10-11 16:47:04,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 143 transitions, 306 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:47:04,262 INFO L231 Difference]: Finished difference. Result has 145 places, 143 transitions, 294 flow [2024-10-11 16:47:04,263 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=145, PETRI_TRANSITIONS=143} [2024-10-11 16:47:04,263 INFO L277 CegarLoopForPetriNet]: 164 programPoint places, -19 predicate places. [2024-10-11 16:47:04,264 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 143 transitions, 294 flow [2024-10-11 16:47:04,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 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) [2024-10-11 16:47:04,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:47:04,264 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:47:04,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 16:47:04,265 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-10-11 16:47:04,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:47:04,266 INFO L85 PathProgramCache]: Analyzing trace with hash 681716075, now seen corresponding path program 1 times [2024-10-11 16:47:04,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:47:04,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738312806] [2024-10-11 16:47:04,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:47:04,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:47:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:47:04,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 16:47:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:47:04,329 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 16:47:04,330 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 16:47:04,331 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-10-11 16:47:04,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-10-11 16:47:04,335 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-10-11 16:47:04,335 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-10-11 16:47:04,336 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-10-11 16:47:04,337 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-10-11 16:47:04,337 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2024-10-11 16:47:04,337 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-10-11 16:47:04,337 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-10-11 16:47:04,337 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-10-11 16:47:04,338 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-10-11 16:47:04,338 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-10-11 16:47:04,338 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-10-11 16:47:04,339 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-10-11 16:47:04,339 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-10-11 16:47:04,339 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-10-11 16:47:04,340 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-10-11 16:47:04,340 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-10-11 16:47:04,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-10-11 16:47:04,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-10-11 16:47:04,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-10-11 16:47:04,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-10-11 16:47:04,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-10-11 16:47:04,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-10-11 16:47:04,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-10-11 16:47:04,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-10-11 16:47:04,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-10-11 16:47:04,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2024-10-11 16:47:04,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-10-11 16:47:04,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-10-11 16:47:04,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-10-11 16:47:04,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-10-11 16:47:04,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-10-11 16:47:04,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 16:47:04,344 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-11 16:47:04,347 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 16:47:04,347 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-11 16:47:04,418 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 16:47:04,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 302 places, 328 transitions, 666 flow [2024-10-11 16:47:04,492 INFO L124 PetriNetUnfolderBase]: 33/348 cut-off events. [2024-10-11 16:47:04,493 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 16:47:04,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 348 events. 33/348 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1217 event pairs, 0 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 311. Up to 6 conditions per place. [2024-10-11 16:47:04,500 INFO L82 GeneralOperation]: Start removeDead. Operand has 302 places, 328 transitions, 666 flow [2024-10-11 16:47:04,506 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 302 places, 328 transitions, 666 flow [2024-10-11 16:47:04,509 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:47:04,510 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;@3c62acad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:47:04,510 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2024-10-11 16:47:04,514 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:47:04,515 INFO L124 PetriNetUnfolderBase]: 2/28 cut-off events. [2024-10-11 16:47:04,515 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:47:04,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:47:04,515 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] [2024-10-11 16:47:04,516 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-10-11 16:47:04,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:47:04,517 INFO L85 PathProgramCache]: Analyzing trace with hash -411774539, now seen corresponding path program 1 times [2024-10-11 16:47:04,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:47:04,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95280031] [2024-10-11 16:47:04,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:47:04,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:47:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:47:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:47:04,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:47:04,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95280031] [2024-10-11 16:47:04,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95280031] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:47:04,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:47:04,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 16:47:04,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632218059] [2024-10-11 16:47:04,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:47:04,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 16:47:04,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:47:04,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 16:47:04,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 16:47:04,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 328 [2024-10-11 16:47:04,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 328 transitions, 666 flow. Second operand has 2 states, 2 states have (on average 269.0) internal successors, (538), 2 states have internal predecessors, (538), 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) [2024-10-11 16:47:04,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:47:04,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 328 [2024-10-11 16:47:04,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:47:04,715 INFO L124 PetriNetUnfolderBase]: 48/902 cut-off events. [2024-10-11 16:47:04,716 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-10-11 16:47:04,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 973 conditions, 902 events. 48/902 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4980 event pairs, 20 based on Foata normal form. 109/913 useless extension candidates. Maximal degree in co-relation 790. Up to 51 conditions per place. [2024-10-11 16:47:04,721 INFO L140 encePairwiseOnDemand]: 284/328 looper letters, 10 selfloop transitions, 0 changer transitions 0/267 dead transitions. [2024-10-11 16:47:04,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 267 transitions, 564 flow [2024-10-11 16:47:04,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 16:47:04,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 16:47:04,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 590 transitions. [2024-10-11 16:47:04,724 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.899390243902439 [2024-10-11 16:47:04,725 INFO L175 Difference]: Start difference. First operand has 302 places, 328 transitions, 666 flow. Second operand 2 states and 590 transitions. [2024-10-11 16:47:04,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 267 transitions, 564 flow [2024-10-11 16:47:04,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 267 transitions, 564 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:47:04,730 INFO L231 Difference]: Finished difference. Result has 265 places, 267 transitions, 544 flow [2024-10-11 16:47:04,730 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=544, PETRI_PLACES=265, PETRI_TRANSITIONS=267} [2024-10-11 16:47:04,731 INFO L277 CegarLoopForPetriNet]: 302 programPoint places, -37 predicate places. [2024-10-11 16:47:04,731 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 267 transitions, 544 flow [2024-10-11 16:47:04,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 269.0) internal successors, (538), 2 states have internal predecessors, (538), 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) [2024-10-11 16:47:04,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:47:04,731 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] [2024-10-11 16:47:04,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 16:47:04,732 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-10-11 16:47:04,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:47:04,732 INFO L85 PathProgramCache]: Analyzing trace with hash -578302728, now seen corresponding path program 1 times [2024-10-11 16:47:04,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:47:04,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134667350] [2024-10-11 16:47:04,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:47:04,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:47:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:47:04,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:47:04,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:47:04,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134667350] [2024-10-11 16:47:04,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134667350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:47:04,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:47:04,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:47:04,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306985390] [2024-10-11 16:47:04,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:47:04,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:47:04,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:47:04,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:47:04,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:47:04,808 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 328 [2024-10-11 16:47:04,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 267 transitions, 544 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 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) [2024-10-11 16:47:04,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:47:04,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 328 [2024-10-11 16:47:04,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:47:05,029 INFO L124 PetriNetUnfolderBase]: 119/1685 cut-off events. [2024-10-11 16:47:05,029 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-10-11 16:47:05,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 1685 events. 119/1685 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 12150 event pairs, 27 based on Foata normal form. 0/1509 useless extension candidates. Maximal degree in co-relation 1869. Up to 92 conditions per place. [2024-10-11 16:47:05,042 INFO L140 encePairwiseOnDemand]: 320/328 looper letters, 27 selfloop transitions, 6 changer transitions 0/282 dead transitions. [2024-10-11 16:47:05,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 282 transitions, 645 flow [2024-10-11 16:47:05,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:47:05,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:47:05,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 815 transitions. [2024-10-11 16:47:05,045 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8282520325203252 [2024-10-11 16:47:05,045 INFO L175 Difference]: Start difference. First operand has 265 places, 267 transitions, 544 flow. Second operand 3 states and 815 transitions. [2024-10-11 16:47:05,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 282 transitions, 645 flow [2024-10-11 16:47:05,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 282 transitions, 645 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:47:05,052 INFO L231 Difference]: Finished difference. Result has 269 places, 273 transitions, 596 flow [2024-10-11 16:47:05,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=269, PETRI_TRANSITIONS=273} [2024-10-11 16:47:05,053 INFO L277 CegarLoopForPetriNet]: 302 programPoint places, -33 predicate places. [2024-10-11 16:47:05,054 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 273 transitions, 596 flow [2024-10-11 16:47:05,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 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) [2024-10-11 16:47:05,055 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:47:05,055 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:47:05,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 16:47:05,056 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-10-11 16:47:05,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:47:05,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1527490542, now seen corresponding path program 1 times [2024-10-11 16:47:05,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:47:05,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938297376] [2024-10-11 16:47:05,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:47:05,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:47:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:47:05,074 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 16:47:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:47:05,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 16:47:05,098 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 16:47:05,098 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2024-10-11 16:47:05,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2024-10-11 16:47:05,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2024-10-11 16:47:05,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2024-10-11 16:47:05,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2024-10-11 16:47:05,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2024-10-11 16:47:05,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2024-10-11 16:47:05,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2024-10-11 16:47:05,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2024-10-11 16:47:05,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2024-10-11 16:47:05,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2024-10-11 16:47:05,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2024-10-11 16:47:05,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2024-10-11 16:47:05,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2024-10-11 16:47:05,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2024-10-11 16:47:05,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2024-10-11 16:47:05,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2024-10-11 16:47:05,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2024-10-11 16:47:05,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2024-10-11 16:47:05,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2024-10-11 16:47:05,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2024-10-11 16:47:05,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2024-10-11 16:47:05,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2024-10-11 16:47:05,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2024-10-11 16:47:05,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2024-10-11 16:47:05,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2024-10-11 16:47:05,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2024-10-11 16:47:05,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2024-10-11 16:47:05,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2024-10-11 16:47:05,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2024-10-11 16:47:05,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2024-10-11 16:47:05,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2024-10-11 16:47:05,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2024-10-11 16:47:05,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2024-10-11 16:47:05,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2024-10-11 16:47:05,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2024-10-11 16:47:05,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2024-10-11 16:47:05,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2024-10-11 16:47:05,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2024-10-11 16:47:05,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2024-10-11 16:47:05,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2024-10-11 16:47:05,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2024-10-11 16:47:05,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2024-10-11 16:47:05,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2024-10-11 16:47:05,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2024-10-11 16:47:05,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2024-10-11 16:47:05,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2024-10-11 16:47:05,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2024-10-11 16:47:05,106 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2024-10-11 16:47:05,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 16:47:05,106 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-11 16:47:05,107 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 16:47:05,108 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-11 16:47:05,178 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 16:47:05,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 440 places, 479 transitions, 976 flow [2024-10-11 16:47:05,251 INFO L124 PetriNetUnfolderBase]: 49/510 cut-off events. [2024-10-11 16:47:05,252 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-11 16:47:05,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 510 events. 49/510 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2224 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 461. Up to 8 conditions per place. [2024-10-11 16:47:05,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 440 places, 479 transitions, 976 flow [2024-10-11 16:47:05,267 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 440 places, 479 transitions, 976 flow [2024-10-11 16:47:05,268 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:47:05,268 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;@3c62acad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:47:05,268 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2024-10-11 16:47:05,271 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:47:05,271 INFO L124 PetriNetUnfolderBase]: 2/28 cut-off events. [2024-10-11 16:47:05,271 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:47:05,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:47:05,272 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] [2024-10-11 16:47:05,272 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-11 16:47:05,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:47:05,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1456168982, now seen corresponding path program 1 times [2024-10-11 16:47:05,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:47:05,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878808455] [2024-10-11 16:47:05,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:47:05,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:47:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:47:05,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:47:05,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:47:05,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878808455] [2024-10-11 16:47:05,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878808455] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:47:05,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:47:05,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 16:47:05,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177493438] [2024-10-11 16:47:05,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:47:05,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 16:47:05,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:47:05,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 16:47:05,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 16:47:05,294 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 479 [2024-10-11 16:47:05,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 479 transitions, 976 flow. Second operand has 2 states, 2 states have (on average 391.0) internal successors, (782), 2 states have internal predecessors, (782), 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) [2024-10-11 16:47:05,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:47:05,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 479 [2024-10-11 16:47:05,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:47:05,953 INFO L124 PetriNetUnfolderBase]: 372/4861 cut-off events. [2024-10-11 16:47:05,954 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2024-10-11 16:47:05,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5358 conditions, 4861 events. 372/4861 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 47213 event pairs, 220 based on Foata normal form. 743/5045 useless extension candidates. Maximal degree in co-relation 4236. Up to 376 conditions per place. [2024-10-11 16:47:05,993 INFO L140 encePairwiseOnDemand]: 414/479 looper letters, 15 selfloop transitions, 0 changer transitions 0/390 dead transitions. [2024-10-11 16:47:05,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 390 transitions, 828 flow [2024-10-11 16:47:05,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 16:47:05,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 16:47:05,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 860 transitions. [2024-10-11 16:47:05,996 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8977035490605428 [2024-10-11 16:47:05,996 INFO L175 Difference]: Start difference. First operand has 440 places, 479 transitions, 976 flow. Second operand 2 states and 860 transitions. [2024-10-11 16:47:05,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 390 transitions, 828 flow [2024-10-11 16:47:05,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 390 transitions, 826 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-11 16:47:06,002 INFO L231 Difference]: Finished difference. Result has 386 places, 390 transitions, 796 flow [2024-10-11 16:47:06,004 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=479, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=796, PETRI_PLACES=386, PETRI_TRANSITIONS=390} [2024-10-11 16:47:06,005 INFO L277 CegarLoopForPetriNet]: 440 programPoint places, -54 predicate places. [2024-10-11 16:47:06,005 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 390 transitions, 796 flow [2024-10-11 16:47:06,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 391.0) internal successors, (782), 2 states have internal predecessors, (782), 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) [2024-10-11 16:47:06,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:47:06,006 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] [2024-10-11 16:47:06,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 16:47:06,006 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-11 16:47:06,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:47:06,007 INFO L85 PathProgramCache]: Analyzing trace with hash 781000141, now seen corresponding path program 1 times [2024-10-11 16:47:06,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:47:06,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368440404] [2024-10-11 16:47:06,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:47:06,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:47:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:47:06,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:47:06,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:47:06,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368440404] [2024-10-11 16:47:06,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368440404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:47:06,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:47:06,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:47:06,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898975097] [2024-10-11 16:47:06,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:47:06,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:47:06,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:47:06,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:47:06,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:47:06,066 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 479 [2024-10-11 16:47:06,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 390 transitions, 796 flow. Second operand has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 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) [2024-10-11 16:47:06,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:47:06,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 479 [2024-10-11 16:47:06,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:47:08,123 INFO L124 PetriNetUnfolderBase]: 2035/18246 cut-off events. [2024-10-11 16:47:08,124 INFO L125 PetriNetUnfolderBase]: For 280/280 co-relation queries the response was YES. [2024-10-11 16:47:08,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20983 conditions, 18246 events. 2035/18246 cut-off events. For 280/280 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 237658 event pairs, 595 based on Foata normal form. 0/16218 useless extension candidates. Maximal degree in co-relation 20977. Up to 1412 conditions per place. [2024-10-11 16:47:08,260 INFO L140 encePairwiseOnDemand]: 467/479 looper letters, 41 selfloop transitions, 9 changer transitions 0/413 dead transitions. [2024-10-11 16:47:08,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 413 transitions, 952 flow [2024-10-11 16:47:08,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:47:08,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:47:08,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1187 transitions. [2024-10-11 16:47:08,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.826026443980515 [2024-10-11 16:47:08,264 INFO L175 Difference]: Start difference. First operand has 386 places, 390 transitions, 796 flow. Second operand 3 states and 1187 transitions. [2024-10-11 16:47:08,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 413 transitions, 952 flow [2024-10-11 16:47:08,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 413 transitions, 952 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:47:08,270 INFO L231 Difference]: Finished difference. Result has 390 places, 399 transitions, 874 flow [2024-10-11 16:47:08,271 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=479, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=874, PETRI_PLACES=390, PETRI_TRANSITIONS=399} [2024-10-11 16:47:08,271 INFO L277 CegarLoopForPetriNet]: 440 programPoint places, -50 predicate places. [2024-10-11 16:47:08,271 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 399 transitions, 874 flow [2024-10-11 16:47:08,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 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) [2024-10-11 16:47:08,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:47:08,272 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] [2024-10-11 16:47:08,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 16:47:08,272 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-11 16:47:08,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:47:08,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1791286082, now seen corresponding path program 1 times [2024-10-11 16:47:08,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:47:08,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956936854] [2024-10-11 16:47:08,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:47:08,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:47:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:47:08,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:47:08,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:47:08,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956936854] [2024-10-11 16:47:08,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956936854] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:47:08,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:47:08,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:47:08,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670594495] [2024-10-11 16:47:08,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:47:08,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:47:08,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:47:08,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:47:08,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:47:08,805 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 479 [2024-10-11 16:47:08,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 399 transitions, 874 flow. Second operand has 6 states, 6 states have (on average 328.6666666666667) internal successors, (1972), 6 states have internal predecessors, (1972), 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) [2024-10-11 16:47:08,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:47:08,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 479 [2024-10-11 16:47:08,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:47:40,084 INFO L124 PetriNetUnfolderBase]: 88596/302249 cut-off events. [2024-10-11 16:47:40,084 INFO L125 PetriNetUnfolderBase]: For 4664/4669 co-relation queries the response was YES. [2024-10-11 16:47:41,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437654 conditions, 302249 events. 88596/302249 cut-off events. For 4664/4669 co-relation queries the response was YES. Maximal size of possible extension queue 4524. Compared 4845988 event pairs, 52011 based on Foata normal form. 0/277048 useless extension candidates. Maximal degree in co-relation 437646. Up to 102787 conditions per place. [2024-10-11 16:47:42,982 INFO L140 encePairwiseOnDemand]: 432/479 looper letters, 163 selfloop transitions, 130 changer transitions 0/614 dead transitions. [2024-10-11 16:47:42,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 614 transitions, 1930 flow [2024-10-11 16:47:42,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:47:42,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:47:42,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2256 transitions. [2024-10-11 16:47:42,987 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7849686847599165 [2024-10-11 16:47:42,987 INFO L175 Difference]: Start difference. First operand has 390 places, 399 transitions, 874 flow. Second operand 6 states and 2256 transitions. [2024-10-11 16:47:42,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 614 transitions, 1930 flow [2024-10-11 16:47:43,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 614 transitions, 1912 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:47:43,009 INFO L231 Difference]: Finished difference. Result has 397 places, 540 transitions, 1716 flow [2024-10-11 16:47:43,009 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=479, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1716, PETRI_PLACES=397, PETRI_TRANSITIONS=540} [2024-10-11 16:47:43,010 INFO L277 CegarLoopForPetriNet]: 440 programPoint places, -43 predicate places. [2024-10-11 16:47:43,010 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 540 transitions, 1716 flow [2024-10-11 16:47:43,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 328.6666666666667) internal successors, (1972), 6 states have internal predecessors, (1972), 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) [2024-10-11 16:47:43,011 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:47:43,011 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:47:43,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 16:47:43,012 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-11 16:47:43,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:47:43,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1789986986, now seen corresponding path program 1 times [2024-10-11 16:47:43,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:47:43,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451275801] [2024-10-11 16:47:43,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:47:43,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:47:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:47:43,022 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 16:47:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:47:43,033 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 16:47:43,033 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 16:47:43,033 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2024-10-11 16:47:43,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2024-10-11 16:47:43,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2024-10-11 16:47:43,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2024-10-11 16:47:43,034 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2024-10-11 16:47:43,034 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2024-10-11 16:47:43,034 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2024-10-11 16:47:43,034 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2024-10-11 16:47:43,034 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2024-10-11 16:47:43,034 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2024-10-11 16:47:43,034 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2024-10-11 16:47:43,034 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2024-10-11 16:47:43,035 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2024-10-11 16:47:43,035 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2024-10-11 16:47:43,035 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2024-10-11 16:47:43,035 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2024-10-11 16:47:43,035 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2024-10-11 16:47:43,035 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2024-10-11 16:47:43,036 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2024-10-11 16:47:43,036 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2024-10-11 16:47:43,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2024-10-11 16:47:43,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2024-10-11 16:47:43,038 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2024-10-11 16:47:43,038 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2024-10-11 16:47:43,038 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2024-10-11 16:47:43,038 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2024-10-11 16:47:43,038 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2024-10-11 16:47:43,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2024-10-11 16:47:43,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2024-10-11 16:47:43,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2024-10-11 16:47:43,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2024-10-11 16:47:43,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2024-10-11 16:47:43,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2024-10-11 16:47:43,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2024-10-11 16:47:43,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2024-10-11 16:47:43,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2024-10-11 16:47:43,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2024-10-11 16:47:43,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2024-10-11 16:47:43,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2024-10-11 16:47:43,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2024-10-11 16:47:43,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2024-10-11 16:47:43,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2024-10-11 16:47:43,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2024-10-11 16:47:43,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2024-10-11 16:47:43,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2024-10-11 16:47:43,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2024-10-11 16:47:43,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2024-10-11 16:47:43,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2024-10-11 16:47:43,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2024-10-11 16:47:43,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2024-10-11 16:47:43,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2024-10-11 16:47:43,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2024-10-11 16:47:43,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2024-10-11 16:47:43,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2024-10-11 16:47:43,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2024-10-11 16:47:43,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2024-10-11 16:47:43,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2024-10-11 16:47:43,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2024-10-11 16:47:43,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2024-10-11 16:47:43,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2024-10-11 16:47:43,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2024-10-11 16:47:43,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2024-10-11 16:47:43,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2024-10-11 16:47:43,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2024-10-11 16:47:43,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2024-10-11 16:47:43,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 16:47:43,044 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-11 16:47:43,044 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 16:47:43,044 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-11 16:47:43,146 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 16:47:43,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 578 places, 630 transitions, 1288 flow [2024-10-11 16:47:43,292 INFO L124 PetriNetUnfolderBase]: 65/672 cut-off events. [2024-10-11 16:47:43,292 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-11 16:47:43,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 691 conditions, 672 events. 65/672 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3315 event pairs, 0 based on Foata normal form. 0/538 useless extension candidates. Maximal degree in co-relation 611. Up to 10 conditions per place. [2024-10-11 16:47:43,305 INFO L82 GeneralOperation]: Start removeDead. Operand has 578 places, 630 transitions, 1288 flow [2024-10-11 16:47:43,312 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 578 places, 630 transitions, 1288 flow [2024-10-11 16:47:43,312 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:47:43,313 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;@3c62acad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:47:43,313 INFO L334 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2024-10-11 16:47:43,314 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:47:43,314 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-10-11 16:47:43,314 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:47:43,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:47:43,314 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] [2024-10-11 16:47:43,314 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2024-10-11 16:47:43,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:47:43,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1305529162, now seen corresponding path program 1 times [2024-10-11 16:47:43,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:47:43,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582771262] [2024-10-11 16:47:43,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:47:43,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:47:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:47:43,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:47:43,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:47:43,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582771262] [2024-10-11 16:47:43,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582771262] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:47:43,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:47:43,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 16:47:43,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621034140] [2024-10-11 16:47:43,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:47:43,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 16:47:43,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:47:43,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 16:47:43,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 16:47:43,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 512 out of 630 [2024-10-11 16:47:43,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 630 transitions, 1288 flow. Second operand has 2 states, 2 states have (on average 513.0) internal successors, (1026), 2 states have internal predecessors, (1026), 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) [2024-10-11 16:47:43,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:47:43,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 512 of 630 [2024-10-11 16:47:43,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand