./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:47:07,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:47:07,519 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:47:07,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:47:07,524 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:47:07,550 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:47:07,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:47:07,551 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:47:07,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:47:07,552 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:47:07,552 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:47:07,553 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:47:07,553 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:47:07,555 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:47:07,555 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:47:07,555 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:47:07,555 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:47:07,556 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:47:07,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:47:07,559 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:47:07,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:47:07,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:47:07,559 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:47:07,560 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:47:07,560 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:47:07,560 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:47:07,560 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:47:07,560 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:47:07,561 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:47:07,561 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:47:07,561 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:47:07,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:47:07,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:47:07,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:47:07,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:47:07,562 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:47:07,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:47:07,562 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:47:07,562 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:47:07,563 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:47:07,563 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:47:07,563 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 [2024-11-22 17:47:07,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:47:07,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:47:07,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:47:07,825 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:47:07,826 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:47:07,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2024-11-22 17:47:09,281 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:47:09,546 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:47:09,547 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2024-11-22 17:47:09,564 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd8115879/80fd22d34cc6417f9fb9d60ac9434455/FLAGa57031303 [2024-11-22 17:47:09,876 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd8115879/80fd22d34cc6417f9fb9d60ac9434455 [2024-11-22 17:47:09,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:47:09,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:47:09,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:47:09,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:47:09,888 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:47:09,888 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:47:09" (1/1) ... [2024-11-22 17:47:09,889 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c870daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:09, skipping insertion in model container [2024-11-22 17:47:09,890 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:47:09" (1/1) ... [2024-11-22 17:47:09,923 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:47:10,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:47:10,251 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:47:10,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:47:10,347 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:47:10,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:10 WrapperNode [2024-11-22 17:47:10,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:47:10,349 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:47:10,349 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:47:10,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:47:10,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:10" (1/1) ... [2024-11-22 17:47:10,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:10" (1/1) ... [2024-11-22 17:47:10,417 INFO L138 Inliner]: procedures = 174, calls = 94, calls flagged for inlining = 21, calls inlined = 37, statements flattened = 912 [2024-11-22 17:47:10,418 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:47:10,419 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:47:10,419 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:47:10,419 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:47:10,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:10" (1/1) ... [2024-11-22 17:47:10,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:10" (1/1) ... [2024-11-22 17:47:10,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:10" (1/1) ... [2024-11-22 17:47:10,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:10" (1/1) ... [2024-11-22 17:47:10,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:10" (1/1) ... [2024-11-22 17:47:10,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:10" (1/1) ... [2024-11-22 17:47:10,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:10" (1/1) ... [2024-11-22 17:47:10,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:10" (1/1) ... [2024-11-22 17:47:10,548 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:47:10,549 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:47:10,549 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:47:10,549 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:47:10,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:10" (1/1) ... [2024-11-22 17:47:10,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:47:10,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:47:10,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 17:47:10,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 17:47:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 17:47:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 17:47:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 17:47:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-11-22 17:47:10,644 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-11-22 17:47:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:47:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-22 17:47:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 17:47:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-22 17:47:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 17:47:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:47:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 17:47:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:47:10,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:47:10,648 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:47:10,788 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:47:10,790 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:47:11,766 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:47:11,766 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:47:11,829 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:47:11,830 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-22 17:47:11,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:47:11 BoogieIcfgContainer [2024-11-22 17:47:11,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:47:11,835 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:47:11,836 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:47:11,839 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:47:11,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:47:09" (1/3) ... [2024-11-22 17:47:11,840 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a1e23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:47:11, skipping insertion in model container [2024-11-22 17:47:11,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:10" (2/3) ... [2024-11-22 17:47:11,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a1e23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:47:11, skipping insertion in model container [2024-11-22 17:47:11,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:47:11" (3/3) ... [2024-11-22 17:47:11,842 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_3t.i [2024-11-22 17:47:11,854 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:47:11,854 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 79 error locations. [2024-11-22 17:47:11,854 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:47:12,077 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-22 17:47:12,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 981 places, 1069 transitions, 2145 flow [2024-11-22 17:47:12,580 INFO L124 PetriNetUnfolderBase]: 137/1569 cut-off events. [2024-11-22 17:47:12,580 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:47:12,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1574 conditions, 1569 events. 137/1569 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5622 event pairs, 0 based on Foata normal form. 0/1312 useless extension candidates. Maximal degree in co-relation 926. Up to 4 conditions per place. [2024-11-22 17:47:12,614 INFO L82 GeneralOperation]: Start removeDead. Operand has 981 places, 1069 transitions, 2145 flow [2024-11-22 17:47:12,638 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 981 places, 1069 transitions, 2145 flow [2024-11-22 17:47:12,645 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:47:12,650 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;@6a4911fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:47:12,650 INFO L334 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2024-11-22 17:47:12,657 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:47:12,657 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-11-22 17:47:12,657 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:47:12,657 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:47:12,658 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:47:12,659 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-22 17:47:12,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:47:12,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1984391261, now seen corresponding path program 1 times [2024-11-22 17:47:12,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:47:12,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994206620] [2024-11-22 17:47:12,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:47:12,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:47:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:47:13,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:13,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:47:13,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994206620] [2024-11-22 17:47:13,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994206620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:47:13,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:47:13,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:47:13,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520655320] [2024-11-22 17:47:13,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:47:13,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:47:13,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:47:13,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:47:13,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:47:14,509 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 752 out of 1069 [2024-11-22 17:47:14,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 981 places, 1069 transitions, 2145 flow. Second operand has 6 states, 6 states have (on average 753.5) internal successors, (4521), 6 states have internal predecessors, (4521), 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) [2024-11-22 17:47:14,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:47:14,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 752 of 1069 [2024-11-22 17:47:14,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:47:24,360 INFO L124 PetriNetUnfolderBase]: 12711/59648 cut-off events. [2024-11-22 17:47:24,361 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-22 17:47:24,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83057 conditions, 59648 events. 12711/59648 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 695071 event pairs, 11413 based on Foata normal form. 7003/59480 useless extension candidates. Maximal degree in co-relation 82324. Up to 23399 conditions per place. [2024-11-22 17:47:24,621 INFO L140 encePairwiseOnDemand]: 991/1069 looper letters, 239 selfloop transitions, 5 changer transitions 6/968 dead transitions. [2024-11-22 17:47:24,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 957 places, 968 transitions, 2431 flow [2024-11-22 17:47:24,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:47:24,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:47:24,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4829 transitions. [2024-11-22 17:47:24,644 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7528843155597131 [2024-11-22 17:47:24,646 INFO L175 Difference]: Start difference. First operand has 981 places, 1069 transitions, 2145 flow. Second operand 6 states and 4829 transitions. [2024-11-22 17:47:24,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 957 places, 968 transitions, 2431 flow [2024-11-22 17:47:24,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 957 places, 968 transitions, 2431 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:47:24,669 INFO L231 Difference]: Finished difference. Result has 957 places, 962 transitions, 1941 flow [2024-11-22 17:47:24,672 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1069, PETRI_DIFFERENCE_MINUEND_FLOW=1943, PETRI_DIFFERENCE_MINUEND_PLACES=952, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=963, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1941, PETRI_PLACES=957, PETRI_TRANSITIONS=962} [2024-11-22 17:47:24,675 INFO L277 CegarLoopForPetriNet]: 981 programPoint places, -24 predicate places. [2024-11-22 17:47:24,675 INFO L471 AbstractCegarLoop]: Abstraction has has 957 places, 962 transitions, 1941 flow [2024-11-22 17:47:24,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 753.5) internal successors, (4521), 6 states have internal predecessors, (4521), 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) [2024-11-22 17:47:24,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:47:24,680 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:47:24,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:47:24,681 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-22 17:47:24,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:47:24,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1093703532, now seen corresponding path program 1 times [2024-11-22 17:47:24,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:47:24,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691851788] [2024-11-22 17:47:24,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:47:24,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:47:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:47:24,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:24,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:47:24,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691851788] [2024-11-22 17:47:24,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691851788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:47:24,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:47:24,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:47:24,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093401057] [2024-11-22 17:47:24,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:47:24,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:47:24,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:47:24,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:47:24,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:47:24,782 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 969 out of 1069 [2024-11-22 17:47:24,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 957 places, 962 transitions, 1941 flow. Second operand has 3 states, 3 states have (on average 970.3333333333334) internal successors, (2911), 3 states have internal predecessors, (2911), 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) [2024-11-22 17:47:24,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:47:24,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 969 of 1069 [2024-11-22 17:47:24,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:47:25,866 INFO L124 PetriNetUnfolderBase]: 247/4828 cut-off events. [2024-11-22 17:47:25,866 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-22 17:47:25,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5151 conditions, 4828 events. 247/4828 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 36235 event pairs, 110 based on Foata normal form. 1/4167 useless extension candidates. Maximal degree in co-relation 5062. Up to 306 conditions per place. [2024-11-22 17:47:25,921 INFO L140 encePairwiseOnDemand]: 1066/1069 looper letters, 27 selfloop transitions, 2 changer transitions 0/963 dead transitions. [2024-11-22 17:47:25,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 953 places, 963 transitions, 2001 flow [2024-11-22 17:47:25,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:47:25,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:47:25,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2937 transitions. [2024-11-22 17:47:25,927 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9158091674462114 [2024-11-22 17:47:25,927 INFO L175 Difference]: Start difference. First operand has 957 places, 962 transitions, 1941 flow. Second operand 3 states and 2937 transitions. [2024-11-22 17:47:25,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 953 places, 963 transitions, 2001 flow [2024-11-22 17:47:25,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 948 places, 963 transitions, 1991 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 17:47:25,948 INFO L231 Difference]: Finished difference. Result has 949 places, 963 transitions, 1943 flow [2024-11-22 17:47:25,950 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1069, PETRI_DIFFERENCE_MINUEND_FLOW=1931, PETRI_DIFFERENCE_MINUEND_PLACES=946, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=960, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1943, PETRI_PLACES=949, PETRI_TRANSITIONS=963} [2024-11-22 17:47:25,950 INFO L277 CegarLoopForPetriNet]: 981 programPoint places, -32 predicate places. [2024-11-22 17:47:25,951 INFO L471 AbstractCegarLoop]: Abstraction has has 949 places, 963 transitions, 1943 flow [2024-11-22 17:47:25,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 970.3333333333334) internal successors, (2911), 3 states have internal predecessors, (2911), 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) [2024-11-22 17:47:25,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:47:25,953 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:47:25,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 17:47:25,953 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-22 17:47:25,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:47:25,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1751565561, now seen corresponding path program 1 times [2024-11-22 17:47:25,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:47:25,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359710515] [2024-11-22 17:47:25,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:47:25,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:47:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:47:26,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:26,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:47:26,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359710515] [2024-11-22 17:47:26,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359710515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:47:26,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:47:26,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:47:26,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457409568] [2024-11-22 17:47:26,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:47:26,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:47:26,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:47:26,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:47:26,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:47:27,594 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 752 out of 1069 [2024-11-22 17:47:27,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 949 places, 963 transitions, 1943 flow. Second operand has 6 states, 6 states have (on average 753.5) internal successors, (4521), 6 states have internal predecessors, (4521), 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) [2024-11-22 17:47:27,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:47:27,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 752 of 1069 [2024-11-22 17:47:27,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:47:37,678 INFO L124 PetriNetUnfolderBase]: 12711/59669 cut-off events. [2024-11-22 17:47:37,678 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-22 17:47:37,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83093 conditions, 59669 events. 12711/59669 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 694676 event pairs, 11413 based on Foata normal form. 0/52501 useless extension candidates. Maximal degree in co-relation 83009. Up to 23402 conditions per place. [2024-11-22 17:47:37,911 INFO L140 encePairwiseOnDemand]: 1063/1069 looper letters, 240 selfloop transitions, 5 changer transitions 0/962 dead transitions. [2024-11-22 17:47:37,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 953 places, 962 transitions, 2431 flow [2024-11-22 17:47:37,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:47:37,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:47:37,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4757 transitions. [2024-11-22 17:47:37,918 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.741658871219208 [2024-11-22 17:47:37,918 INFO L175 Difference]: Start difference. First operand has 949 places, 963 transitions, 1943 flow. Second operand 6 states and 4757 transitions. [2024-11-22 17:47:37,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 953 places, 962 transitions, 2431 flow [2024-11-22 17:47:37,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 952 places, 962 transitions, 2429 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:47:37,929 INFO L231 Difference]: Finished difference. Result has 952 places, 962 transitions, 1949 flow [2024-11-22 17:47:37,930 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1069, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=947, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=957, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1949, PETRI_PLACES=952, PETRI_TRANSITIONS=962} [2024-11-22 17:47:37,931 INFO L277 CegarLoopForPetriNet]: 981 programPoint places, -29 predicate places. [2024-11-22 17:47:37,931 INFO L471 AbstractCegarLoop]: Abstraction has has 952 places, 962 transitions, 1949 flow [2024-11-22 17:47:37,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 753.5) internal successors, (4521), 6 states have internal predecessors, (4521), 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) [2024-11-22 17:47:37,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:47:37,934 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:47:37,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:47:37,934 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-22 17:47:37,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:47:37,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1037517633, now seen corresponding path program 1 times [2024-11-22 17:47:37,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:47:37,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880850613] [2024-11-22 17:47:37,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:47:37,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:47:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:47:38,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:38,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:47:38,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880850613] [2024-11-22 17:47:38,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880850613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:47:38,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:47:38,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:47:38,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133385150] [2024-11-22 17:47:38,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:47:38,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:47:38,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:47:38,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:47:38,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:47:39,148 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 752 out of 1069 [2024-11-22 17:47:39,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 952 places, 962 transitions, 1949 flow. Second operand has 6 states, 6 states have (on average 753.5) internal successors, (4521), 6 states have internal predecessors, (4521), 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) [2024-11-22 17:47:39,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:47:39,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 752 of 1069 [2024-11-22 17:47:39,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:47:48,882 INFO L124 PetriNetUnfolderBase]: 12711/59667 cut-off events. [2024-11-22 17:47:48,883 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2024-11-22 17:47:48,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83100 conditions, 59667 events. 12711/59667 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 694665 event pairs, 11413 based on Foata normal form. 0/52501 useless extension candidates. Maximal degree in co-relation 83002. Up to 23402 conditions per place. [2024-11-22 17:47:49,115 INFO L140 encePairwiseOnDemand]: 1063/1069 looper letters, 240 selfloop transitions, 5 changer transitions 0/961 dead transitions. [2024-11-22 17:47:49,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 956 places, 961 transitions, 2437 flow [2024-11-22 17:47:49,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:47:49,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:47:49,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4757 transitions. [2024-11-22 17:47:49,124 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.741658871219208 [2024-11-22 17:47:49,124 INFO L175 Difference]: Start difference. First operand has 952 places, 962 transitions, 1949 flow. Second operand 6 states and 4757 transitions. [2024-11-22 17:47:49,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 956 places, 961 transitions, 2437 flow [2024-11-22 17:47:49,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 951 places, 961 transitions, 2427 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 17:47:49,135 INFO L231 Difference]: Finished difference. Result has 951 places, 961 transitions, 1947 flow [2024-11-22 17:47:49,137 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1069, PETRI_DIFFERENCE_MINUEND_FLOW=1937, PETRI_DIFFERENCE_MINUEND_PLACES=946, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=961, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=956, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1947, PETRI_PLACES=951, PETRI_TRANSITIONS=961} [2024-11-22 17:47:49,138 INFO L277 CegarLoopForPetriNet]: 981 programPoint places, -30 predicate places. [2024-11-22 17:47:49,138 INFO L471 AbstractCegarLoop]: Abstraction has has 951 places, 961 transitions, 1947 flow [2024-11-22 17:47:49,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 753.5) internal successors, (4521), 6 states have internal predecessors, (4521), 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) [2024-11-22 17:47:49,140 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:47:49,140 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:47:49,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 17:47:49,141 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-22 17:47:49,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:47:49,141 INFO L85 PathProgramCache]: Analyzing trace with hash 245339648, now seen corresponding path program 1 times [2024-11-22 17:47:49,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:47:49,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442824060] [2024-11-22 17:47:49,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:47:49,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:47:49,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:47:49,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:49,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:47:49,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442824060] [2024-11-22 17:47:49,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442824060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:47:49,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357850206] [2024-11-22 17:47:49,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:47:49,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:47:49,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:47:49,225 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:47:49,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 17:47:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:47:49,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 17:47:49,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:47:49,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:49,395 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:47:49,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:49,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357850206] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:47:49,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:47:49,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-22 17:47:49,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427106922] [2024-11-22 17:47:49,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:47:49,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:47:49,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:47:49,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:47:49,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:47:49,626 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 968 out of 1069 [2024-11-22 17:47:49,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 951 places, 961 transitions, 1947 flow. Second operand has 6 states, 6 states have (on average 970.1666666666666) internal successors, (5821), 6 states have internal predecessors, (5821), 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) [2024-11-22 17:47:49,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:47:49,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 968 of 1069 [2024-11-22 17:47:49,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:47:50,608 INFO L124 PetriNetUnfolderBase]: 247/4854 cut-off events. [2024-11-22 17:47:50,608 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-22 17:47:50,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5193 conditions, 4854 events. 247/4854 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36232 event pairs, 110 based on Foata normal form. 2/4198 useless extension candidates. Maximal degree in co-relation 5045. Up to 305 conditions per place. [2024-11-22 17:47:50,641 INFO L140 encePairwiseOnDemand]: 1065/1069 looper letters, 29 selfloop transitions, 5 changer transitions 0/965 dead transitions. [2024-11-22 17:47:50,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 955 places, 965 transitions, 2025 flow [2024-11-22 17:47:50,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 17:47:50,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 17:47:50,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4876 transitions. [2024-11-22 17:47:50,651 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9122544434050515 [2024-11-22 17:47:50,651 INFO L175 Difference]: Start difference. First operand has 951 places, 961 transitions, 1947 flow. Second operand 5 states and 4876 transitions. [2024-11-22 17:47:50,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 955 places, 965 transitions, 2025 flow [2024-11-22 17:47:50,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 950 places, 965 transitions, 2015 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 17:47:50,661 INFO L231 Difference]: Finished difference. Result has 953 places, 963 transitions, 1967 flow [2024-11-22 17:47:50,663 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1069, PETRI_DIFFERENCE_MINUEND_FLOW=1937, PETRI_DIFFERENCE_MINUEND_PLACES=946, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=961, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=957, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1967, PETRI_PLACES=953, PETRI_TRANSITIONS=963} [2024-11-22 17:47:50,663 INFO L277 CegarLoopForPetriNet]: 981 programPoint places, -28 predicate places. [2024-11-22 17:47:50,663 INFO L471 AbstractCegarLoop]: Abstraction has has 953 places, 963 transitions, 1967 flow [2024-11-22 17:47:50,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 970.1666666666666) internal successors, (5821), 6 states have internal predecessors, (5821), 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) [2024-11-22 17:47:50,666 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:47:50,666 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:47:50,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 17:47:50,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:47:50,867 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-22 17:47:50,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:47:50,870 INFO L85 PathProgramCache]: Analyzing trace with hash -135798488, now seen corresponding path program 2 times [2024-11-22 17:47:50,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:47:50,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082032181] [2024-11-22 17:47:50,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:47:50,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:47:50,901 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:47:50,901 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:47:51,074 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-22 17:47:51,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:47:51,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082032181] [2024-11-22 17:47:51,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082032181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:47:51,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:47:51,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:47:51,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275468838] [2024-11-22 17:47:51,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:47:51,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:47:51,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:47:51,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:47:51,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:47:52,244 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 749 out of 1069 [2024-11-22 17:47:52,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 953 places, 963 transitions, 1967 flow. Second operand has 6 states, 6 states have (on average 752.3333333333334) internal successors, (4514), 6 states have internal predecessors, (4514), 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) [2024-11-22 17:47:52,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:47:52,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 749 of 1069 [2024-11-22 17:47:52,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand