./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-deagle/floating_read-5.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-deagle/floating_read-5.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 2f28efd84e1dbcbcea7683bca483f8f3b9fbdd333eb36f517b9f12d5bccb885d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:18:21,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:18:21,796 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:18:21,801 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:18:21,801 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:18:21,829 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:18:21,831 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:18:21,832 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:18:21,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:18:21,833 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:18:21,834 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:18:21,834 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:18:21,835 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:18:21,836 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:18:21,836 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:18:21,836 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:18:21,837 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:18:21,837 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:18:21,837 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:18:21,837 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:18:21,838 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:18:21,841 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:18:21,841 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:18:21,842 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:18:21,842 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:18:21,842 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:18:21,843 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:18:21,843 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:18:21,843 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:18:21,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:18:21,844 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:18:21,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:18:21,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:18:21,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:18:21,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:18:21,847 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:18:21,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:18:21,848 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:18:21,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:18:21,848 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:18:21,848 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:18:21,849 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f28efd84e1dbcbcea7683bca483f8f3b9fbdd333eb36f517b9f12d5bccb885d [2024-10-11 17:18:22,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:18:22,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:18:22,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:18:22,170 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:18:22,170 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:18:22,172 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/floating_read-5.i [2024-10-11 17:18:23,556 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:18:23,791 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:18:23,792 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/floating_read-5.i [2024-10-11 17:18:23,805 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e72e154a7/c49c780f40ac4cf0838591bbaf32ef23/FLAG367828168 [2024-10-11 17:18:24,121 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e72e154a7/c49c780f40ac4cf0838591bbaf32ef23 [2024-10-11 17:18:24,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:18:24,125 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:18:24,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:18:24,127 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:18:24,132 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:18:24,133 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:18:24" (1/1) ... [2024-10-11 17:18:24,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c66ee48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:24, skipping insertion in model container [2024-10-11 17:18:24,134 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:18:24" (1/1) ... [2024-10-11 17:18:24,171 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:18:24,501 WARN L1659 CHandler]: Possible shadowing of function thread [2024-10-11 17:18:24,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:18:24,532 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:18:24,587 WARN L1659 CHandler]: Possible shadowing of function thread [2024-10-11 17:18:24,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:18:24,638 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:18:24,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:24 WrapperNode [2024-10-11 17:18:24,639 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:18:24,641 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:18:24,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:18:24,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:18:24,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:24" (1/1) ... [2024-10-11 17:18:24,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:24" (1/1) ... [2024-10-11 17:18:24,696 INFO L138 Inliner]: procedures = 162, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-10-11 17:18:24,699 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:18:24,699 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:18:24,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:18:24,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:18:24,727 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:24" (1/1) ... [2024-10-11 17:18:24,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:24" (1/1) ... [2024-10-11 17:18:24,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:24" (1/1) ... [2024-10-11 17:18:24,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:24" (1/1) ... [2024-10-11 17:18:24,767 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:24" (1/1) ... [2024-10-11 17:18:24,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:24" (1/1) ... [2024-10-11 17:18:24,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:24" (1/1) ... [2024-10-11 17:18:24,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:24" (1/1) ... [2024-10-11 17:18:24,789 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:18:24,791 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:18:24,791 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:18:24,791 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:18:24,792 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:24" (1/1) ... [2024-10-11 17:18:24,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:18:24,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:24,834 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 17:18:24,841 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 17:18:24,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:18:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:18:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 17:18:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:18:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 17:18:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 17:18:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:18:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-11 17:18:24,889 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-11 17:18:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 17:18:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:18:24,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:18:24,892 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 17:18:25,051 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:18:25,053 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:18:25,242 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:18:25,242 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:18:25,287 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:18:25,287 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 17:18:25,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:18:25 BoogieIcfgContainer [2024-10-11 17:18:25,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:18:25,290 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:18:25,290 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:18:25,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:18:25,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:18:24" (1/3) ... [2024-10-11 17:18:25,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6ba6ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:18:25, skipping insertion in model container [2024-10-11 17:18:25,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:24" (2/3) ... [2024-10-11 17:18:25,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6ba6ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:18:25, skipping insertion in model container [2024-10-11 17:18:25,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:18:25" (3/3) ... [2024-10-11 17:18:25,298 INFO L112 eAbstractionObserver]: Analyzing ICFG floating_read-5.i [2024-10-11 17:18:25,314 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:18:25,314 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-10-11 17:18:25,315 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:18:25,371 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-11 17:18:25,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 75 transitions, 157 flow [2024-10-11 17:18:25,472 INFO L124 PetriNetUnfolderBase]: 9/119 cut-off events. [2024-10-11 17:18:25,472 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:18:25,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 119 events. 9/119 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 230 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 60. Up to 4 conditions per place. [2024-10-11 17:18:25,478 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 75 transitions, 157 flow [2024-10-11 17:18:25,482 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 75 transitions, 157 flow [2024-10-11 17:18:25,493 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:18:25,500 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;@14fd2bc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:18:25,501 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-11 17:18:25,507 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:18:25,509 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-10-11 17:18:25,509 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:18:25,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:25,510 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:25,510 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-11 17:18:25,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:25,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1413199819, now seen corresponding path program 1 times [2024-10-11 17:18:25,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:25,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744832252] [2024-10-11 17:18:25,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:25,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:25,704 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 17:18:25,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:25,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744832252] [2024-10-11 17:18:25,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744832252] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:25,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:25,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:18:25,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526728030] [2024-10-11 17:18:25,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:25,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 17:18:25,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:25,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 17:18:25,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 17:18:25,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 75 [2024-10-11 17:18:25,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 75 transitions, 157 flow. Second operand has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:18:25,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:25,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 75 [2024-10-11 17:18:25,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:25,790 INFO L124 PetriNetUnfolderBase]: 1/105 cut-off events. [2024-10-11 17:18:25,790 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-10-11 17:18:25,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 105 events. 1/105 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 190 event pairs, 0 based on Foata normal form. 8/101 useless extension candidates. Maximal degree in co-relation 3. Up to 5 conditions per place. [2024-10-11 17:18:25,792 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 4 selfloop transitions, 0 changer transitions 12/67 dead transitions. [2024-10-11 17:18:25,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 67 transitions, 149 flow [2024-10-11 17:18:25,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 17:18:25,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 17:18:25,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 138 transitions. [2024-10-11 17:18:25,805 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.92 [2024-10-11 17:18:25,806 INFO L175 Difference]: Start difference. First operand has 73 places, 75 transitions, 157 flow. Second operand 2 states and 138 transitions. [2024-10-11 17:18:25,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 67 transitions, 149 flow [2024-10-11 17:18:25,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 67 transitions, 149 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:18:25,812 INFO L231 Difference]: Finished difference. Result has 70 places, 55 transitions, 117 flow [2024-10-11 17:18:25,814 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=117, PETRI_PLACES=70, PETRI_TRANSITIONS=55} [2024-10-11 17:18:25,817 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, -3 predicate places. [2024-10-11 17:18:25,818 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 55 transitions, 117 flow [2024-10-11 17:18:25,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:18:25,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:25,818 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:25,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:18:25,819 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-11 17:18:25,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:25,820 INFO L85 PathProgramCache]: Analyzing trace with hash -968080929, now seen corresponding path program 1 times [2024-10-11 17:18:25,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:25,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741921223] [2024-10-11 17:18:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:25,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:25,953 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 17:18:25,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:25,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741921223] [2024-10-11 17:18:25,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741921223] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:25,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:25,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:18:25,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980676511] [2024-10-11 17:18:25,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:25,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:25,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:25,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:25,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:25,998 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 75 [2024-10-11 17:18:25,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 55 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 17:18:26,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:26,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 75 [2024-10-11 17:18:26,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:26,033 INFO L124 PetriNetUnfolderBase]: 3/106 cut-off events. [2024-10-11 17:18:26,033 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 17:18:26,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 106 events. 3/106 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 190 event pairs, 0 based on Foata normal form. 1/99 useless extension candidates. Maximal degree in co-relation 124. Up to 13 conditions per place. [2024-10-11 17:18:26,034 INFO L140 encePairwiseOnDemand]: 72/75 looper letters, 8 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2024-10-11 17:18:26,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 56 transitions, 139 flow [2024-10-11 17:18:26,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:26,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:26,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2024-10-11 17:18:26,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2024-10-11 17:18:26,040 INFO L175 Difference]: Start difference. First operand has 70 places, 55 transitions, 117 flow. Second operand 3 states and 185 transitions. [2024-10-11 17:18:26,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 56 transitions, 139 flow [2024-10-11 17:18:26,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 56 transitions, 139 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:18:26,045 INFO L231 Difference]: Finished difference. Result has 61 places, 55 transitions, 125 flow [2024-10-11 17:18:26,046 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=61, PETRI_TRANSITIONS=55} [2024-10-11 17:18:26,046 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, -12 predicate places. [2024-10-11 17:18:26,047 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 55 transitions, 125 flow [2024-10-11 17:18:26,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 17:18:26,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:26,047 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] [2024-10-11 17:18:26,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:18:26,048 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-11 17:18:26,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:26,049 INFO L85 PathProgramCache]: Analyzing trace with hash 305169799, now seen corresponding path program 1 times [2024-10-11 17:18:26,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:26,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521133957] [2024-10-11 17:18:26,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:26,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:26,580 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 17:18:26,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:26,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521133957] [2024-10-11 17:18:26,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521133957] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:26,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:26,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:18:26,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382746497] [2024-10-11 17:18:26,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:26,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:18:26,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:26,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:18:26,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:18:26,721 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 75 [2024-10-11 17:18:26,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 55 transitions, 125 flow. Second operand has 6 states, 6 states have (on average 47.666666666666664) internal successors, (286), 6 states have internal predecessors, (286), 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 17:18:26,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:26,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 75 [2024-10-11 17:18:26,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:26,799 INFO L124 PetriNetUnfolderBase]: 12/112 cut-off events. [2024-10-11 17:18:26,799 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-11 17:18:26,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 112 events. 12/112 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 255 event pairs, 2 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 175. Up to 32 conditions per place. [2024-10-11 17:18:26,802 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 18 selfloop transitions, 5 changer transitions 0/58 dead transitions. [2024-10-11 17:18:26,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 58 transitions, 177 flow [2024-10-11 17:18:26,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:18:26,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:18:26,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 300 transitions. [2024-10-11 17:18:26,806 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-11 17:18:26,808 INFO L175 Difference]: Start difference. First operand has 61 places, 55 transitions, 125 flow. Second operand 6 states and 300 transitions. [2024-10-11 17:18:26,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 58 transitions, 177 flow [2024-10-11 17:18:26,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 58 transitions, 173 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:26,810 INFO L231 Difference]: Finished difference. Result has 63 places, 54 transitions, 129 flow [2024-10-11 17:18:26,811 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=129, PETRI_PLACES=63, PETRI_TRANSITIONS=54} [2024-10-11 17:18:26,812 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, -10 predicate places. [2024-10-11 17:18:26,812 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 54 transitions, 129 flow [2024-10-11 17:18:26,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.666666666666664) internal successors, (286), 6 states have internal predecessors, (286), 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 17:18:26,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:26,813 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] [2024-10-11 17:18:26,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:18:26,813 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-11 17:18:26,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:26,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1477123848, now seen corresponding path program 1 times [2024-10-11 17:18:26,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:26,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660692780] [2024-10-11 17:18:26,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:26,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:26,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:26,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:26,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660692780] [2024-10-11 17:18:26,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660692780] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:26,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789971375] [2024-10-11 17:18:26,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:26,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:26,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:26,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:18:26,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 17:18:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:26,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 17:18:26,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:27,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 17:18:27,022 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:18:27,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789971375] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:27,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:18:27,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 17:18:27,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640631563] [2024-10-11 17:18:27,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:27,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:27,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:27,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:27,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:18:27,030 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 75 [2024-10-11 17:18:27,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 54 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 17:18:27,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:27,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 75 [2024-10-11 17:18:27,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:27,061 INFO L124 PetriNetUnfolderBase]: 1/103 cut-off events. [2024-10-11 17:18:27,061 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2024-10-11 17:18:27,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 103 events. 1/103 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 158 event pairs, 0 based on Foata normal form. 1/98 useless extension candidates. Maximal degree in co-relation 131. Up to 8 conditions per place. [2024-10-11 17:18:27,062 INFO L140 encePairwiseOnDemand]: 71/75 looper letters, 7 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2024-10-11 17:18:27,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 57 transitions, 158 flow [2024-10-11 17:18:27,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:27,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:27,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 194 transitions. [2024-10-11 17:18:27,064 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8622222222222222 [2024-10-11 17:18:27,064 INFO L175 Difference]: Start difference. First operand has 63 places, 54 transitions, 129 flow. Second operand 3 states and 194 transitions. [2024-10-11 17:18:27,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 57 transitions, 158 flow [2024-10-11 17:18:27,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 57 transitions, 148 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:18:27,066 INFO L231 Difference]: Finished difference. Result has 62 places, 56 transitions, 141 flow [2024-10-11 17:18:27,066 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=62, PETRI_TRANSITIONS=56} [2024-10-11 17:18:27,067 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, -11 predicate places. [2024-10-11 17:18:27,067 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 56 transitions, 141 flow [2024-10-11 17:18:27,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 17:18:27,068 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:27,068 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] [2024-10-11 17:18:27,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 17:18:27,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:27,270 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-11 17:18:27,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:27,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1236436539, now seen corresponding path program 1 times [2024-10-11 17:18:27,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:27,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014429733] [2024-10-11 17:18:27,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:27,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:27,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:27,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:27,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014429733] [2024-10-11 17:18:27,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014429733] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:27,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584893869] [2024-10-11 17:18:27,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:27,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:27,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:27,361 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:18:27,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 17:18:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:27,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:18:27,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:27,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:27,509 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:18:27,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:27,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584893869] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:18:27,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:18:27,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:18:27,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125760071] [2024-10-11 17:18:27,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:18:27,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:18:27,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:27,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:18:27,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:18:27,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 75 [2024-10-11 17:18:27,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 56 transitions, 141 flow. Second operand has 10 states, 10 states have (on average 57.3) internal successors, (573), 10 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:18:27,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:27,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 75 [2024-10-11 17:18:27,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:27,702 INFO L124 PetriNetUnfolderBase]: 4/63 cut-off events. [2024-10-11 17:18:27,702 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-11 17:18:27,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 63 events. 4/63 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs, 0 based on Foata normal form. 2/65 useless extension candidates. Maximal degree in co-relation 90. Up to 6 conditions per place. [2024-10-11 17:18:27,703 INFO L140 encePairwiseOnDemand]: 70/75 looper letters, 9 selfloop transitions, 4 changer transitions 0/39 dead transitions. [2024-10-11 17:18:27,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 39 transitions, 118 flow [2024-10-11 17:18:27,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:18:27,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:18:27,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 344 transitions. [2024-10-11 17:18:27,706 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7644444444444445 [2024-10-11 17:18:27,707 INFO L175 Difference]: Start difference. First operand has 62 places, 56 transitions, 141 flow. Second operand 6 states and 344 transitions. [2024-10-11 17:18:27,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 39 transitions, 118 flow [2024-10-11 17:18:27,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 39 transitions, 108 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:27,708 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 82 flow [2024-10-11 17:18:27,708 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=82, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2024-10-11 17:18:27,709 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, -28 predicate places. [2024-10-11 17:18:27,709 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 82 flow [2024-10-11 17:18:27,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 57.3) internal successors, (573), 10 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:18:27,712 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:27,712 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:27,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 17:18:27,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:27,914 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-11 17:18:27,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:27,914 INFO L85 PathProgramCache]: Analyzing trace with hash -684794120, now seen corresponding path program 1 times [2024-10-11 17:18:27,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:27,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256590978] [2024-10-11 17:18:27,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:27,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:18:27,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 17:18:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:18:27,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 17:18:27,975 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 17:18:27,976 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-10-11 17:18:27,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-10-11 17:18:27,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-10-11 17:18:27,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-10-11 17:18:27,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-10-11 17:18:27,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-10-11 17:18:27,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-10-11 17:18:27,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:18:27,980 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-11 17:18:27,982 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 17:18:27,982 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-11 17:18:27,998 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 17:18:28,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 83 transitions, 182 flow [2024-10-11 17:18:28,025 INFO L124 PetriNetUnfolderBase]: 16/200 cut-off events. [2024-10-11 17:18:28,025 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-11 17:18:28,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 200 events. 16/200 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 443 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 121. Up to 8 conditions per place. [2024-10-11 17:18:28,027 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 83 transitions, 182 flow [2024-10-11 17:18:28,028 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 83 transitions, 182 flow [2024-10-11 17:18:28,030 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:18:28,030 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;@14fd2bc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:18:28,031 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-11 17:18:28,033 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:18:28,033 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-10-11 17:18:28,033 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:18:28,033 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:28,033 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:28,033 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-11 17:18:28,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:28,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1432291435, now seen corresponding path program 1 times [2024-10-11 17:18:28,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:28,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382953715] [2024-10-11 17:18:28,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:28,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:28,047 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 17:18:28,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:28,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382953715] [2024-10-11 17:18:28,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382953715] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:28,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:28,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:18:28,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790310918] [2024-10-11 17:18:28,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:28,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 17:18:28,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:28,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 17:18:28,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 17:18:28,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 83 [2024-10-11 17:18:28,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 83 transitions, 182 flow. Second operand has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 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 17:18:28,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:28,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 83 [2024-10-11 17:18:28,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:28,083 INFO L124 PetriNetUnfolderBase]: 7/212 cut-off events. [2024-10-11 17:18:28,083 INFO L125 PetriNetUnfolderBase]: For 29/38 co-relation queries the response was YES. [2024-10-11 17:18:28,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 212 events. 7/212 cut-off events. For 29/38 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 541 event pairs, 4 based on Foata normal form. 16/203 useless extension candidates. Maximal degree in co-relation 111. Up to 18 conditions per place. [2024-10-11 17:18:28,085 INFO L140 encePairwiseOnDemand]: 76/83 looper letters, 7 selfloop transitions, 0 changer transitions 0/74 dead transitions. [2024-10-11 17:18:28,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 74 transitions, 178 flow [2024-10-11 17:18:28,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 17:18:28,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 17:18:28,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 150 transitions. [2024-10-11 17:18:28,086 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9036144578313253 [2024-10-11 17:18:28,087 INFO L175 Difference]: Start difference. First operand has 82 places, 83 transitions, 182 flow. Second operand 2 states and 150 transitions. [2024-10-11 17:18:28,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 74 transitions, 178 flow [2024-10-11 17:18:28,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 74 transitions, 178 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:18:28,089 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 164 flow [2024-10-11 17:18:28,089 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=164, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2024-10-11 17:18:28,090 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, -4 predicate places. [2024-10-11 17:18:28,090 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 164 flow [2024-10-11 17:18:28,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 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 17:18:28,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:28,090 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:28,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:18:28,091 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-11 17:18:28,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:28,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1669664558, now seen corresponding path program 1 times [2024-10-11 17:18:28,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:28,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946998124] [2024-10-11 17:18:28,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:28,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:28,117 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 17:18:28,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:28,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946998124] [2024-10-11 17:18:28,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946998124] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:28,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:28,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:18:28,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671111106] [2024-10-11 17:18:28,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:28,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:28,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:28,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:28,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:28,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 83 [2024-10-11 17:18:28,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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 17:18:28,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:28,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 83 [2024-10-11 17:18:28,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:28,218 INFO L124 PetriNetUnfolderBase]: 28/388 cut-off events. [2024-10-11 17:18:28,219 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-10-11 17:18:28,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 388 events. 28/388 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1856 event pairs, 10 based on Foata normal form. 1/350 useless extension candidates. Maximal degree in co-relation 469. Up to 65 conditions per place. [2024-10-11 17:18:28,222 INFO L140 encePairwiseOnDemand]: 80/83 looper letters, 12 selfloop transitions, 2 changer transitions 3/76 dead transitions. [2024-10-11 17:18:28,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 76 transitions, 198 flow [2024-10-11 17:18:28,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:28,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:28,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2024-10-11 17:18:28,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8112449799196787 [2024-10-11 17:18:28,229 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 164 flow. Second operand 3 states and 202 transitions. [2024-10-11 17:18:28,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 76 transitions, 198 flow [2024-10-11 17:18:28,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 76 transitions, 198 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:18:28,231 INFO L231 Difference]: Finished difference. Result has 81 places, 72 transitions, 170 flow [2024-10-11 17:18:28,231 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=81, PETRI_TRANSITIONS=72} [2024-10-11 17:18:28,232 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, -1 predicate places. [2024-10-11 17:18:28,232 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 72 transitions, 170 flow [2024-10-11 17:18:28,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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 17:18:28,233 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:28,233 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] [2024-10-11 17:18:28,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:18:28,233 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-11 17:18:28,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:28,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1393150298, now seen corresponding path program 1 times [2024-10-11 17:18:28,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:28,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966203986] [2024-10-11 17:18:28,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:28,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:28,503 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 17:18:28,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:28,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966203986] [2024-10-11 17:18:28,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966203986] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:28,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:28,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:18:28,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361904482] [2024-10-11 17:18:28,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:28,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:18:28,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:28,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:18:28,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:18:28,616 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 83 [2024-10-11 17:18:28,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 72 transitions, 170 flow. Second operand has 6 states, 6 states have (on average 51.666666666666664) internal successors, (310), 6 states have internal predecessors, (310), 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 17:18:28,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:28,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 83 [2024-10-11 17:18:28,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:28,707 INFO L124 PetriNetUnfolderBase]: 77/403 cut-off events. [2024-10-11 17:18:28,707 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-10-11 17:18:28,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 403 events. 77/403 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2009 event pairs, 12 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 621. Up to 122 conditions per place. [2024-10-11 17:18:28,710 INFO L140 encePairwiseOnDemand]: 77/83 looper letters, 25 selfloop transitions, 6 changer transitions 2/79 dead transitions. [2024-10-11 17:18:28,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 79 transitions, 248 flow [2024-10-11 17:18:28,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:18:28,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:18:28,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 332 transitions. [2024-10-11 17:18:28,711 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-11 17:18:28,712 INFO L175 Difference]: Start difference. First operand has 81 places, 72 transitions, 170 flow. Second operand 6 states and 332 transitions. [2024-10-11 17:18:28,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 79 transitions, 248 flow [2024-10-11 17:18:28,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 79 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:18:28,714 INFO L231 Difference]: Finished difference. Result has 81 places, 69 transitions, 174 flow [2024-10-11 17:18:28,714 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=81, PETRI_TRANSITIONS=69} [2024-10-11 17:18:28,714 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, -1 predicate places. [2024-10-11 17:18:28,715 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 69 transitions, 174 flow [2024-10-11 17:18:28,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.666666666666664) internal successors, (310), 6 states have internal predecessors, (310), 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 17:18:28,715 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:28,717 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] [2024-10-11 17:18:28,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:18:28,717 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-11 17:18:28,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:28,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1549695339, now seen corresponding path program 1 times [2024-10-11 17:18:28,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:28,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107584401] [2024-10-11 17:18:28,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:28,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:28,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:28,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:28,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107584401] [2024-10-11 17:18:28,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107584401] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:28,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142283338] [2024-10-11 17:18:28,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:28,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:28,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:28,794 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:18:28,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 17:18:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:28,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 17:18:28,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 17:18:28,876 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:18:28,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142283338] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:28,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:18:28,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 17:18:28,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710836148] [2024-10-11 17:18:28,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:28,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:28,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:28,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:28,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:18:28,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 83 [2024-10-11 17:18:28,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 69 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 17:18:28,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:28,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 83 [2024-10-11 17:18:28,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:28,937 INFO L124 PetriNetUnfolderBase]: 23/360 cut-off events. [2024-10-11 17:18:28,938 INFO L125 PetriNetUnfolderBase]: For 55/65 co-relation queries the response was YES. [2024-10-11 17:18:28,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 360 events. 23/360 cut-off events. For 55/65 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1717 event pairs, 6 based on Foata normal form. 3/321 useless extension candidates. Maximal degree in co-relation 462. Up to 41 conditions per place. [2024-10-11 17:18:28,940 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 11 selfloop transitions, 4 changer transitions 0/74 dead transitions. [2024-10-11 17:18:28,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 74 transitions, 220 flow [2024-10-11 17:18:28,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:28,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:28,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 211 transitions. [2024-10-11 17:18:28,942 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8473895582329317 [2024-10-11 17:18:28,942 INFO L175 Difference]: Start difference. First operand has 81 places, 69 transitions, 174 flow. Second operand 3 states and 211 transitions. [2024-10-11 17:18:28,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 74 transitions, 220 flow [2024-10-11 17:18:28,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 74 transitions, 208 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:18:28,947 INFO L231 Difference]: Finished difference. Result has 78 places, 72 transitions, 192 flow [2024-10-11 17:18:28,948 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=192, PETRI_PLACES=78, PETRI_TRANSITIONS=72} [2024-10-11 17:18:28,948 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, -4 predicate places. [2024-10-11 17:18:28,948 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 72 transitions, 192 flow [2024-10-11 17:18:28,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 17:18:28,949 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:28,949 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] [2024-10-11 17:18:28,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 17:18:29,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:29,150 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-11 17:18:29,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:29,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1302135797, now seen corresponding path program 1 times [2024-10-11 17:18:29,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:29,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75188573] [2024-10-11 17:18:29,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:29,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:29,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:29,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:29,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75188573] [2024-10-11 17:18:29,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75188573] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:29,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352847752] [2024-10-11 17:18:29,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:29,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:29,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:29,224 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:18:29,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 17:18:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:29,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:18:29,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:29,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:29,349 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:18:29,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:29,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352847752] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:18:29,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:18:29,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:18:29,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514642226] [2024-10-11 17:18:29,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:18:29,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:18:29,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:29,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:18:29,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:18:29,483 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 83 [2024-10-11 17:18:29,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 72 transitions, 192 flow. Second operand has 10 states, 10 states have (on average 61.3) internal successors, (613), 10 states have internal predecessors, (613), 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 17:18:29,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:29,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 83 [2024-10-11 17:18:29,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:29,555 INFO L124 PetriNetUnfolderBase]: 22/149 cut-off events. [2024-10-11 17:18:29,555 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-10-11 17:18:29,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 149 events. 22/149 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 388 event pairs, 0 based on Foata normal form. 6/155 useless extension candidates. Maximal degree in co-relation 245. Up to 26 conditions per place. [2024-10-11 17:18:29,556 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 18 selfloop transitions, 7 changer transitions 0/55 dead transitions. [2024-10-11 17:18:29,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 55 transitions, 198 flow [2024-10-11 17:18:29,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:18:29,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:18:29,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 558 transitions. [2024-10-11 17:18:29,559 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7469879518072289 [2024-10-11 17:18:29,559 INFO L175 Difference]: Start difference. First operand has 78 places, 72 transitions, 192 flow. Second operand 9 states and 558 transitions. [2024-10-11 17:18:29,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 55 transitions, 198 flow [2024-10-11 17:18:29,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 55 transitions, 198 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:18:29,560 INFO L231 Difference]: Finished difference. Result has 59 places, 44 transitions, 122 flow [2024-10-11 17:18:29,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=122, PETRI_PLACES=59, PETRI_TRANSITIONS=44} [2024-10-11 17:18:29,561 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, -23 predicate places. [2024-10-11 17:18:29,561 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 44 transitions, 122 flow [2024-10-11 17:18:29,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 61.3) internal successors, (613), 10 states have internal predecessors, (613), 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 17:18:29,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:29,562 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:29,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 17:18:29,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 17:18:29,767 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-11 17:18:29,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:29,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1277331358, now seen corresponding path program 1 times [2024-10-11 17:18:29,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:29,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811493079] [2024-10-11 17:18:29,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:29,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:18:29,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 17:18:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:18:29,803 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 17:18:29,804 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 17:18:29,804 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-10-11 17:18:29,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-10-11 17:18:29,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-10-11 17:18:29,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-10-11 17:18:29,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-10-11 17:18:29,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-10-11 17:18:29,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-10-11 17:18:29,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-10-11 17:18:29,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 17:18:29,805 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-11 17:18:29,806 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 17:18:29,806 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-11 17:18:29,820 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-11 17:18:29,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 209 flow [2024-10-11 17:18:29,860 INFO L124 PetriNetUnfolderBase]: 28/328 cut-off events. [2024-10-11 17:18:29,860 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-11 17:18:29,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 328 events. 28/328 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 872 event pairs, 1 based on Foata normal form. 0/276 useless extension candidates. Maximal degree in co-relation 208. Up to 16 conditions per place. [2024-10-11 17:18:29,861 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 91 transitions, 209 flow [2024-10-11 17:18:29,863 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 91 transitions, 209 flow [2024-10-11 17:18:29,864 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:18:29,864 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;@14fd2bc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:18:29,864 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-11 17:18:29,866 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:18:29,866 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-10-11 17:18:29,866 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:18:29,866 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:29,866 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:29,866 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:18:29,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:29,867 INFO L85 PathProgramCache]: Analyzing trace with hash -150921205, now seen corresponding path program 1 times [2024-10-11 17:18:29,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:29,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13210251] [2024-10-11 17:18:29,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:29,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:29,881 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 17:18:29,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:29,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13210251] [2024-10-11 17:18:29,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13210251] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:29,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:29,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:18:29,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707279723] [2024-10-11 17:18:29,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:29,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 17:18:29,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:29,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 17:18:29,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 17:18:29,885 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 91 [2024-10-11 17:18:29,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 91 transitions, 209 flow. Second operand has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 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 17:18:29,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:29,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 91 [2024-10-11 17:18:29,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:29,946 INFO L124 PetriNetUnfolderBase]: 36/492 cut-off events. [2024-10-11 17:18:29,947 INFO L125 PetriNetUnfolderBase]: For 127/182 co-relation queries the response was YES. [2024-10-11 17:18:29,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 615 conditions, 492 events. 36/492 cut-off events. For 127/182 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2098 event pairs, 27 based on Foata normal form. 39/471 useless extension candidates. Maximal degree in co-relation 303. Up to 68 conditions per place. [2024-10-11 17:18:29,950 INFO L140 encePairwiseOnDemand]: 83/91 looper letters, 10 selfloop transitions, 0 changer transitions 0/81 dead transitions. [2024-10-11 17:18:29,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 81 transitions, 209 flow [2024-10-11 17:18:29,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 17:18:29,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 17:18:29,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 162 transitions. [2024-10-11 17:18:29,951 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8901098901098901 [2024-10-11 17:18:29,951 INFO L175 Difference]: Start difference. First operand has 91 places, 91 transitions, 209 flow. Second operand 2 states and 162 transitions. [2024-10-11 17:18:29,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 81 transitions, 209 flow [2024-10-11 17:18:29,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 81 transitions, 209 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:18:29,954 INFO L231 Difference]: Finished difference. Result has 86 places, 81 transitions, 189 flow [2024-10-11 17:18:29,954 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=189, PETRI_PLACES=86, PETRI_TRANSITIONS=81} [2024-10-11 17:18:29,956 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, -5 predicate places. [2024-10-11 17:18:29,956 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 81 transitions, 189 flow [2024-10-11 17:18:29,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 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 17:18:29,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:29,957 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:29,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 17:18:29,957 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:18:29,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:29,958 INFO L85 PathProgramCache]: Analyzing trace with hash 96712397, now seen corresponding path program 1 times [2024-10-11 17:18:29,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:29,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501935328] [2024-10-11 17:18:29,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:29,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:29,981 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 17:18:29,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:29,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501935328] [2024-10-11 17:18:29,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501935328] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:29,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:29,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:18:29,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346446375] [2024-10-11 17:18:29,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:29,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:29,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:29,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:29,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:30,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2024-10-11 17:18:30,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 81 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:18:30,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:30,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2024-10-11 17:18:30,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:30,120 INFO L124 PetriNetUnfolderBase]: 117/1024 cut-off events. [2024-10-11 17:18:30,120 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-10-11 17:18:30,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1297 conditions, 1024 events. 117/1024 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6565 event pairs, 104 based on Foata normal form. 1/925 useless extension candidates. Maximal degree in co-relation 1291. Up to 214 conditions per place. [2024-10-11 17:18:30,128 INFO L140 encePairwiseOnDemand]: 88/91 looper letters, 15 selfloop transitions, 2 changer transitions 3/83 dead transitions. [2024-10-11 17:18:30,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 83 transitions, 229 flow [2024-10-11 17:18:30,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:30,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:30,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2024-10-11 17:18:30,130 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7948717948717948 [2024-10-11 17:18:30,130 INFO L175 Difference]: Start difference. First operand has 86 places, 81 transitions, 189 flow. Second operand 3 states and 217 transitions. [2024-10-11 17:18:30,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 83 transitions, 229 flow [2024-10-11 17:18:30,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 83 transitions, 229 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:18:30,131 INFO L231 Difference]: Finished difference. Result has 89 places, 79 transitions, 195 flow [2024-10-11 17:18:30,132 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=89, PETRI_TRANSITIONS=79} [2024-10-11 17:18:30,132 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, -2 predicate places. [2024-10-11 17:18:30,132 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 79 transitions, 195 flow [2024-10-11 17:18:30,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:18:30,132 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:30,133 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] [2024-10-11 17:18:30,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 17:18:30,133 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:18:30,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:30,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1344078133, now seen corresponding path program 1 times [2024-10-11 17:18:30,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:30,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641567667] [2024-10-11 17:18:30,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:30,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:30,337 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 17:18:30,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:30,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641567667] [2024-10-11 17:18:30,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641567667] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:30,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:30,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:18:30,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795643489] [2024-10-11 17:18:30,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:30,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:18:30,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:30,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:18:30,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:18:30,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 91 [2024-10-11 17:18:30,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 79 transitions, 195 flow. Second operand has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 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 17:18:30,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:30,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 91 [2024-10-11 17:18:30,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:30,589 INFO L124 PetriNetUnfolderBase]: 314/1091 cut-off events. [2024-10-11 17:18:30,589 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-10-11 17:18:30,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1772 conditions, 1091 events. 314/1091 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6431 event pairs, 196 based on Foata normal form. 0/1022 useless extension candidates. Maximal degree in co-relation 1764. Up to 419 conditions per place. [2024-10-11 17:18:30,598 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 32 selfloop transitions, 6 changer transitions 2/90 dead transitions. [2024-10-11 17:18:30,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 90 transitions, 295 flow [2024-10-11 17:18:30,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:18:30,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:18:30,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 363 transitions. [2024-10-11 17:18:30,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6648351648351648 [2024-10-11 17:18:30,600 INFO L175 Difference]: Start difference. First operand has 89 places, 79 transitions, 195 flow. Second operand 6 states and 363 transitions. [2024-10-11 17:18:30,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 90 transitions, 295 flow [2024-10-11 17:18:30,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 90 transitions, 293 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:18:30,604 INFO L231 Difference]: Finished difference. Result has 89 places, 76 transitions, 199 flow [2024-10-11 17:18:30,604 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=199, PETRI_PLACES=89, PETRI_TRANSITIONS=76} [2024-10-11 17:18:30,604 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, -2 predicate places. [2024-10-11 17:18:30,605 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 76 transitions, 199 flow [2024-10-11 17:18:30,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 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 17:18:30,605 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:30,606 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] [2024-10-11 17:18:30,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 17:18:30,606 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:18:30,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:30,606 INFO L85 PathProgramCache]: Analyzing trace with hash 850910762, now seen corresponding path program 1 times [2024-10-11 17:18:30,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:30,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063005996] [2024-10-11 17:18:30,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:30,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:30,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:30,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:30,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063005996] [2024-10-11 17:18:30,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063005996] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:30,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808527285] [2024-10-11 17:18:30,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:30,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:30,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:30,680 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:18:30,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 17:18:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:30,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 17:18:30,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:30,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 17:18:30,762 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:18:30,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808527285] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:30,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:18:30,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 17:18:30,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904090475] [2024-10-11 17:18:30,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:30,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:30,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:30,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:30,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:18:30,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 91 [2024-10-11 17:18:30,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 76 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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 17:18:30,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:30,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 91 [2024-10-11 17:18:30,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:30,876 INFO L124 PetriNetUnfolderBase]: 123/1035 cut-off events. [2024-10-11 17:18:30,877 INFO L125 PetriNetUnfolderBase]: For 228/285 co-relation queries the response was YES. [2024-10-11 17:18:30,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1383 conditions, 1035 events. 123/1035 cut-off events. For 228/285 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 6894 event pairs, 40 based on Foata normal form. 6/913 useless extension candidates. Maximal degree in co-relation 1375. Up to 166 conditions per place. [2024-10-11 17:18:30,883 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 15 selfloop transitions, 5 changer transitions 0/83 dead transitions. [2024-10-11 17:18:30,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 83 transitions, 262 flow [2024-10-11 17:18:30,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:30,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:30,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2024-10-11 17:18:30,884 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8351648351648352 [2024-10-11 17:18:30,885 INFO L175 Difference]: Start difference. First operand has 89 places, 76 transitions, 199 flow. Second operand 3 states and 228 transitions. [2024-10-11 17:18:30,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 83 transitions, 262 flow [2024-10-11 17:18:30,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 83 transitions, 250 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:18:30,887 INFO L231 Difference]: Finished difference. Result has 86 places, 80 transitions, 225 flow [2024-10-11 17:18:30,887 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2024-10-11 17:18:30,888 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, -5 predicate places. [2024-10-11 17:18:30,888 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 225 flow [2024-10-11 17:18:30,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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 17:18:30,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:30,889 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] [2024-10-11 17:18:30,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 17:18:31,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 17:18:31,093 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:18:31,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:31,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1376052293, now seen corresponding path program 1 times [2024-10-11 17:18:31,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:31,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743618654] [2024-10-11 17:18:31,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:31,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:31,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:31,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:31,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743618654] [2024-10-11 17:18:31,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743618654] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:31,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311332783] [2024-10-11 17:18:31,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:31,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:31,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:31,160 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:18:31,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 17:18:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:31,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:18:31,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:31,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:31,279 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:18:31,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:31,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311332783] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:18:31,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:18:31,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:18:31,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113314691] [2024-10-11 17:18:31,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:18:31,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:18:31,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:31,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:18:31,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:18:31,416 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 91 [2024-10-11 17:18:31,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 80 transitions, 225 flow. Second operand has 10 states, 10 states have (on average 65.3) internal successors, (653), 10 states have internal predecessors, (653), 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 17:18:31,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:31,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 91 [2024-10-11 17:18:31,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:31,635 INFO L124 PetriNetUnfolderBase]: 192/1204 cut-off events. [2024-10-11 17:18:31,635 INFO L125 PetriNetUnfolderBase]: For 463/486 co-relation queries the response was YES. [2024-10-11 17:18:31,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1915 conditions, 1204 events. 192/1204 cut-off events. For 463/486 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 7863 event pairs, 30 based on Foata normal form. 6/1111 useless extension candidates. Maximal degree in co-relation 1906. Up to 218 conditions per place. [2024-10-11 17:18:31,643 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 33 selfloop transitions, 9 changer transitions 0/100 dead transitions. [2024-10-11 17:18:31,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 100 transitions, 375 flow [2024-10-11 17:18:31,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:18:31,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:18:31,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 608 transitions. [2024-10-11 17:18:31,646 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7423687423687424 [2024-10-11 17:18:31,646 INFO L175 Difference]: Start difference. First operand has 86 places, 80 transitions, 225 flow. Second operand 9 states and 608 transitions. [2024-10-11 17:18:31,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 100 transitions, 375 flow [2024-10-11 17:18:31,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 100 transitions, 365 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:31,649 INFO L231 Difference]: Finished difference. Result has 95 places, 86 transitions, 265 flow [2024-10-11 17:18:31,649 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=265, PETRI_PLACES=95, PETRI_TRANSITIONS=86} [2024-10-11 17:18:31,650 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 4 predicate places. [2024-10-11 17:18:31,650 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 86 transitions, 265 flow [2024-10-11 17:18:31,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.3) internal successors, (653), 10 states have internal predecessors, (653), 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 17:18:31,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:31,652 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-11 17:18:31,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 17:18:31,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-11 17:18:31,853 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:18:31,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:31,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1423037198, now seen corresponding path program 1 times [2024-10-11 17:18:31,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:31,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099956501] [2024-10-11 17:18:31,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:31,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:32,006 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:32,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:32,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099956501] [2024-10-11 17:18:32,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099956501] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:32,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920815097] [2024-10-11 17:18:32,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:32,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:32,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:32,009 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:18:32,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 17:18:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:32,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 17:18:32,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:32,206 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:32,207 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:18:32,316 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:32,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920815097] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:18:32,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:18:32,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2024-10-11 17:18:32,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191937514] [2024-10-11 17:18:32,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:18:32,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:18:32,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:32,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:18:32,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:18:32,445 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 91 [2024-10-11 17:18:32,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 86 transitions, 265 flow. Second operand has 13 states, 13 states have (on average 65.6923076923077) internal successors, (854), 13 states have internal predecessors, (854), 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 17:18:32,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:32,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 91 [2024-10-11 17:18:32,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:32,586 INFO L124 PetriNetUnfolderBase]: 78/349 cut-off events. [2024-10-11 17:18:32,587 INFO L125 PetriNetUnfolderBase]: For 183/183 co-relation queries the response was YES. [2024-10-11 17:18:32,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 349 events. 78/349 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1435 event pairs, 0 based on Foata normal form. 8/357 useless extension candidates. Maximal degree in co-relation 704. Up to 86 conditions per place. [2024-10-11 17:18:32,589 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 30 selfloop transitions, 10 changer transitions 0/74 dead transitions. [2024-10-11 17:18:32,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 74 transitions, 332 flow [2024-10-11 17:18:32,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 17:18:32,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 17:18:32,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 797 transitions. [2024-10-11 17:18:32,591 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7298534798534798 [2024-10-11 17:18:32,592 INFO L175 Difference]: Start difference. First operand has 95 places, 86 transitions, 265 flow. Second operand 12 states and 797 transitions. [2024-10-11 17:18:32,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 74 transitions, 332 flow [2024-10-11 17:18:32,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 74 transitions, 317 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-10-11 17:18:32,594 INFO L231 Difference]: Finished difference. Result has 76 places, 54 transitions, 177 flow [2024-10-11 17:18:32,595 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=177, PETRI_PLACES=76, PETRI_TRANSITIONS=54} [2024-10-11 17:18:32,595 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, -15 predicate places. [2024-10-11 17:18:32,596 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 54 transitions, 177 flow [2024-10-11 17:18:32,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 65.6923076923077) internal successors, (854), 13 states have internal predecessors, (854), 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 17:18:32,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:32,596 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:32,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-11 17:18:32,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-11 17:18:32,797 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:18:32,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:32,798 INFO L85 PathProgramCache]: Analyzing trace with hash 274865753, now seen corresponding path program 1 times [2024-10-11 17:18:32,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:32,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629713497] [2024-10-11 17:18:32,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:32,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:18:32,820 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 17:18:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:18:32,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 17:18:32,852 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 17:18:32,853 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-10-11 17:18:32,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-10-11 17:18:32,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-10-11 17:18:32,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-10-11 17:18:32,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-10-11 17:18:32,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-10-11 17:18:32,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-10-11 17:18:32,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-10-11 17:18:32,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-10-11 17:18:32,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 17:18:32,854 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:32,855 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 17:18:32,855 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-11 17:18:32,874 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-11 17:18:32,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 99 transitions, 238 flow [2024-10-11 17:18:32,917 INFO L124 PetriNetUnfolderBase]: 52/552 cut-off events. [2024-10-11 17:18:32,917 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-10-11 17:18:32,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 552 events. 52/552 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1935 event pairs, 6 based on Foata normal form. 0/469 useless extension candidates. Maximal degree in co-relation 348. Up to 32 conditions per place. [2024-10-11 17:18:32,919 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 99 transitions, 238 flow [2024-10-11 17:18:32,921 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 99 transitions, 238 flow [2024-10-11 17:18:32,922 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:18:32,923 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;@14fd2bc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:18:32,923 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-11 17:18:32,924 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:18:32,924 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-10-11 17:18:32,924 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:18:32,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:32,924 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:32,924 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 17:18:32,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:32,925 INFO L85 PathProgramCache]: Analyzing trace with hash 958529195, now seen corresponding path program 1 times [2024-10-11 17:18:32,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:32,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323227645] [2024-10-11 17:18:32,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:32,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:32,934 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 17:18:32,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:32,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323227645] [2024-10-11 17:18:32,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323227645] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:32,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:32,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:18:32,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937965400] [2024-10-11 17:18:32,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:32,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 17:18:32,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:32,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 17:18:32,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 17:18:32,936 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2024-10-11 17:18:32,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 99 transitions, 238 flow. Second operand has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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 17:18:32,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:32,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2024-10-11 17:18:32,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:33,075 INFO L124 PetriNetUnfolderBase]: 157/1308 cut-off events. [2024-10-11 17:18:33,076 INFO L125 PetriNetUnfolderBase]: For 478/763 co-relation queries the response was YES. [2024-10-11 17:18:33,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1735 conditions, 1308 events. 157/1308 cut-off events. For 478/763 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 8586 event pairs, 128 based on Foata normal form. 105/1248 useless extension candidates. Maximal degree in co-relation 947. Up to 250 conditions per place. [2024-10-11 17:18:33,086 INFO L140 encePairwiseOnDemand]: 90/99 looper letters, 13 selfloop transitions, 0 changer transitions 0/88 dead transitions. [2024-10-11 17:18:33,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 88 transitions, 242 flow [2024-10-11 17:18:33,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 17:18:33,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 17:18:33,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 174 transitions. [2024-10-11 17:18:33,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8787878787878788 [2024-10-11 17:18:33,087 INFO L175 Difference]: Start difference. First operand has 100 places, 99 transitions, 238 flow. Second operand 2 states and 174 transitions. [2024-10-11 17:18:33,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 88 transitions, 242 flow [2024-10-11 17:18:33,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 88 transitions, 242 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:18:33,089 INFO L231 Difference]: Finished difference. Result has 94 places, 88 transitions, 216 flow [2024-10-11 17:18:33,089 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=216, PETRI_PLACES=94, PETRI_TRANSITIONS=88} [2024-10-11 17:18:33,090 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -6 predicate places. [2024-10-11 17:18:33,090 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 88 transitions, 216 flow [2024-10-11 17:18:33,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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 17:18:33,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:33,090 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:33,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 17:18:33,091 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 17:18:33,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:33,091 INFO L85 PathProgramCache]: Analyzing trace with hash 36082640, now seen corresponding path program 1 times [2024-10-11 17:18:33,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:33,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439241867] [2024-10-11 17:18:33,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:33,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:33,124 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 17:18:33,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:33,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439241867] [2024-10-11 17:18:33,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439241867] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:33,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:33,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:18:33,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556992742] [2024-10-11 17:18:33,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:33,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:33,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:33,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:33,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:33,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 99 [2024-10-11 17:18:33,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 88 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 17:18:33,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:33,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 99 [2024-10-11 17:18:33,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:33,432 INFO L124 PetriNetUnfolderBase]: 422/2882 cut-off events. [2024-10-11 17:18:33,433 INFO L125 PetriNetUnfolderBase]: For 531/531 co-relation queries the response was YES. [2024-10-11 17:18:33,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3738 conditions, 2882 events. 422/2882 cut-off events. For 531/531 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 23758 event pairs, 278 based on Foata normal form. 1/2616 useless extension candidates. Maximal degree in co-relation 3731. Up to 675 conditions per place. [2024-10-11 17:18:33,452 INFO L140 encePairwiseOnDemand]: 96/99 looper letters, 18 selfloop transitions, 2 changer transitions 3/90 dead transitions. [2024-10-11 17:18:33,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 90 transitions, 262 flow [2024-10-11 17:18:33,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:33,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:33,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2024-10-11 17:18:33,453 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7811447811447811 [2024-10-11 17:18:33,453 INFO L175 Difference]: Start difference. First operand has 94 places, 88 transitions, 216 flow. Second operand 3 states and 232 transitions. [2024-10-11 17:18:33,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 90 transitions, 262 flow [2024-10-11 17:18:33,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 90 transitions, 262 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:18:33,456 INFO L231 Difference]: Finished difference. Result has 97 places, 86 transitions, 222 flow [2024-10-11 17:18:33,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=97, PETRI_TRANSITIONS=86} [2024-10-11 17:18:33,458 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -3 predicate places. [2024-10-11 17:18:33,458 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 86 transitions, 222 flow [2024-10-11 17:18:33,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 17:18:33,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:33,458 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] [2024-10-11 17:18:33,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 17:18:33,458 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 17:18:33,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:33,459 INFO L85 PathProgramCache]: Analyzing trace with hash 157953304, now seen corresponding path program 1 times [2024-10-11 17:18:33,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:33,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698988823] [2024-10-11 17:18:33,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:33,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:33,664 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 17:18:33,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:33,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698988823] [2024-10-11 17:18:33,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698988823] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:33,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:33,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:18:33,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391862376] [2024-10-11 17:18:33,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:33,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:18:33,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:33,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:18:33,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:18:33,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 99 [2024-10-11 17:18:33,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 86 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 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 17:18:33,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:33,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 99 [2024-10-11 17:18:33,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:34,166 INFO L124 PetriNetUnfolderBase]: 1099/3285 cut-off events. [2024-10-11 17:18:34,166 INFO L125 PetriNetUnfolderBase]: For 513/513 co-relation queries the response was YES. [2024-10-11 17:18:34,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5364 conditions, 3285 events. 1099/3285 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 24274 event pairs, 150 based on Foata normal form. 0/3063 useless extension candidates. Maximal degree in co-relation 5355. Up to 1372 conditions per place. [2024-10-11 17:18:34,191 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 39 selfloop transitions, 6 changer transitions 2/101 dead transitions. [2024-10-11 17:18:34,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 101 transitions, 344 flow [2024-10-11 17:18:34,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:18:34,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:18:34,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 394 transitions. [2024-10-11 17:18:34,194 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6632996632996633 [2024-10-11 17:18:34,194 INFO L175 Difference]: Start difference. First operand has 97 places, 86 transitions, 222 flow. Second operand 6 states and 394 transitions. [2024-10-11 17:18:34,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 101 transitions, 344 flow [2024-10-11 17:18:34,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 101 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:18:34,196 INFO L231 Difference]: Finished difference. Result has 97 places, 83 transitions, 226 flow [2024-10-11 17:18:34,196 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=226, PETRI_PLACES=97, PETRI_TRANSITIONS=83} [2024-10-11 17:18:34,197 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -3 predicate places. [2024-10-11 17:18:34,197 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 83 transitions, 226 flow [2024-10-11 17:18:34,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 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 17:18:34,197 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:34,198 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] [2024-10-11 17:18:34,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 17:18:34,198 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 17:18:34,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:34,198 INFO L85 PathProgramCache]: Analyzing trace with hash 89007559, now seen corresponding path program 1 times [2024-10-11 17:18:34,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:34,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432209361] [2024-10-11 17:18:34,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:34,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:34,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:34,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:34,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432209361] [2024-10-11 17:18:34,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432209361] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:34,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61647211] [2024-10-11 17:18:34,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:34,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:34,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:34,259 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:18:34,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 17:18:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:34,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 17:18:34,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:34,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 17:18:34,355 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:18:34,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61647211] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:34,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:18:34,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 17:18:34,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518639838] [2024-10-11 17:18:34,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:34,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:34,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:34,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:34,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:18:34,360 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2024-10-11 17:18:34,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 83 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 17:18:34,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:34,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2024-10-11 17:18:34,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:34,672 INFO L124 PetriNetUnfolderBase]: 492/3013 cut-off events. [2024-10-11 17:18:34,672 INFO L125 PetriNetUnfolderBase]: For 883/1117 co-relation queries the response was YES. [2024-10-11 17:18:34,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4129 conditions, 3013 events. 492/3013 cut-off events. For 883/1117 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 25680 event pairs, 183 based on Foata normal form. 10/2653 useless extension candidates. Maximal degree in co-relation 4120. Up to 584 conditions per place. [2024-10-11 17:18:34,695 INFO L140 encePairwiseOnDemand]: 92/99 looper letters, 19 selfloop transitions, 6 changer transitions 0/92 dead transitions. [2024-10-11 17:18:34,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 92 transitions, 306 flow [2024-10-11 17:18:34,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:34,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:34,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions. [2024-10-11 17:18:34,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8249158249158249 [2024-10-11 17:18:34,697 INFO L175 Difference]: Start difference. First operand has 97 places, 83 transitions, 226 flow. Second operand 3 states and 245 transitions. [2024-10-11 17:18:34,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 92 transitions, 306 flow [2024-10-11 17:18:34,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 92 transitions, 294 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:18:34,699 INFO L231 Difference]: Finished difference. Result has 94 places, 88 transitions, 260 flow [2024-10-11 17:18:34,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=94, PETRI_TRANSITIONS=88} [2024-10-11 17:18:34,700 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -6 predicate places. [2024-10-11 17:18:34,702 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 88 transitions, 260 flow [2024-10-11 17:18:34,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 17:18:34,703 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:34,703 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] [2024-10-11 17:18:34,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-11 17:18:34,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-11 17:18:34,904 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 17:18:34,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:34,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1631746833, now seen corresponding path program 1 times [2024-10-11 17:18:34,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:34,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32905732] [2024-10-11 17:18:34,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:34,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:34,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:34,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:34,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32905732] [2024-10-11 17:18:34,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32905732] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:34,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290086456] [2024-10-11 17:18:34,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:34,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:34,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:34,968 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:18:34,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 17:18:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:35,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:18:35,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:35,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:35,085 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:18:35,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:35,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290086456] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:18:35,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:18:35,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:18:35,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877489896] [2024-10-11 17:18:35,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:18:35,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:18:35,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:35,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:18:35,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:18:35,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 99 [2024-10-11 17:18:35,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 88 transitions, 260 flow. Second operand has 10 states, 10 states have (on average 69.3) internal successors, (693), 10 states have internal predecessors, (693), 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 17:18:35,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:35,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 99 [2024-10-11 17:18:35,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:35,615 INFO L124 PetriNetUnfolderBase]: 753/3511 cut-off events. [2024-10-11 17:18:35,615 INFO L125 PetriNetUnfolderBase]: For 1787/1886 co-relation queries the response was YES. [2024-10-11 17:18:35,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5953 conditions, 3511 events. 753/3511 cut-off events. For 1787/1886 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 30257 event pairs, 127 based on Foata normal form. 6/3210 useless extension candidates. Maximal degree in co-relation 5943. Up to 854 conditions per place. [2024-10-11 17:18:35,701 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 38 selfloop transitions, 9 changer transitions 0/109 dead transitions. [2024-10-11 17:18:35,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 109 transitions, 424 flow [2024-10-11 17:18:35,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:18:35,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:18:35,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 648 transitions. [2024-10-11 17:18:35,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7272727272727273 [2024-10-11 17:18:35,705 INFO L175 Difference]: Start difference. First operand has 94 places, 88 transitions, 260 flow. Second operand 9 states and 648 transitions. [2024-10-11 17:18:35,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 109 transitions, 424 flow [2024-10-11 17:18:35,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 109 transitions, 412 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:35,710 INFO L231 Difference]: Finished difference. Result has 103 places, 94 transitions, 298 flow [2024-10-11 17:18:35,710 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=298, PETRI_PLACES=103, PETRI_TRANSITIONS=94} [2024-10-11 17:18:35,711 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 3 predicate places. [2024-10-11 17:18:35,711 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 94 transitions, 298 flow [2024-10-11 17:18:35,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 69.3) internal successors, (693), 10 states have internal predecessors, (693), 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 17:18:35,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:35,712 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-11 17:18:35,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-11 17:18:35,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:35,917 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 17:18:35,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:35,917 INFO L85 PathProgramCache]: Analyzing trace with hash 46783590, now seen corresponding path program 1 times [2024-10-11 17:18:35,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:35,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829806107] [2024-10-11 17:18:35,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:35,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:36,079 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:36,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:36,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829806107] [2024-10-11 17:18:36,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829806107] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:36,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975982319] [2024-10-11 17:18:36,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:36,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:36,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:36,082 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:18:36,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 17:18:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:36,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 17:18:36,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:36,268 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:36,269 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:18:36,379 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:36,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975982319] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:18:36,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:18:36,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2024-10-11 17:18:36,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531891473] [2024-10-11 17:18:36,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:18:36,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:18:36,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:36,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:18:36,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:18:36,492 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 99 [2024-10-11 17:18:36,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 94 transitions, 298 flow. Second operand has 13 states, 13 states have (on average 69.6923076923077) internal successors, (906), 13 states have internal predecessors, (906), 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 17:18:36,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:36,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 99 [2024-10-11 17:18:36,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:36,702 INFO L124 PetriNetUnfolderBase]: 230/759 cut-off events. [2024-10-11 17:18:36,702 INFO L125 PetriNetUnfolderBase]: For 557/557 co-relation queries the response was YES. [2024-10-11 17:18:36,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1670 conditions, 759 events. 230/759 cut-off events. For 557/557 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3951 event pairs, 0 based on Foata normal form. 24/783 useless extension candidates. Maximal degree in co-relation 1658. Up to 246 conditions per place. [2024-10-11 17:18:36,708 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 45 selfloop transitions, 13 changer transitions 0/96 dead transitions. [2024-10-11 17:18:36,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 96 transitions, 462 flow [2024-10-11 17:18:36,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 17:18:36,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 17:18:36,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1065 transitions. [2024-10-11 17:18:36,711 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7171717171717171 [2024-10-11 17:18:36,711 INFO L175 Difference]: Start difference. First operand has 103 places, 94 transitions, 298 flow. Second operand 15 states and 1065 transitions. [2024-10-11 17:18:36,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 96 transitions, 462 flow [2024-10-11 17:18:36,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 96 transitions, 439 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-10-11 17:18:36,715 INFO L231 Difference]: Finished difference. Result has 87 places, 63 transitions, 216 flow [2024-10-11 17:18:36,715 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=216, PETRI_PLACES=87, PETRI_TRANSITIONS=63} [2024-10-11 17:18:36,715 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -13 predicate places. [2024-10-11 17:18:36,716 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 63 transitions, 216 flow [2024-10-11 17:18:36,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 69.6923076923077) internal successors, (906), 13 states have internal predecessors, (906), 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 17:18:36,716 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:36,717 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:36,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-11 17:18:36,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-11 17:18:36,921 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 17:18:36,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:36,921 INFO L85 PathProgramCache]: Analyzing trace with hash 248426653, now seen corresponding path program 1 times [2024-10-11 17:18:36,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:36,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585753055] [2024-10-11 17:18:36,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:36,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:18:36,955 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 17:18:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:18:36,979 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 17:18:36,979 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 17:18:36,979 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-10-11 17:18:36,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-10-11 17:18:36,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-10-11 17:18:36,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-10-11 17:18:36,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-10-11 17:18:36,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-10-11 17:18:36,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2024-10-11 17:18:36,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-10-11 17:18:36,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-10-11 17:18:36,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-10-11 17:18:36,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-11 17:18:36,981 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:36,982 WARN L239 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 17:18:36,982 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-10-11 17:18:37,006 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-10-11 17:18:37,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 107 transitions, 269 flow [2024-10-11 17:18:37,110 INFO L124 PetriNetUnfolderBase]: 104/972 cut-off events. [2024-10-11 17:18:37,110 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-10-11 17:18:37,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1078 conditions, 972 events. 104/972 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4453 event pairs, 23 based on Foata normal form. 0/834 useless extension candidates. Maximal degree in co-relation 597. Up to 80 conditions per place. [2024-10-11 17:18:37,112 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 107 transitions, 269 flow [2024-10-11 17:18:37,115 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 107 transitions, 269 flow [2024-10-11 17:18:37,116 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:18:37,116 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;@14fd2bc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:18:37,116 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-10-11 17:18:37,117 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:18:37,117 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-10-11 17:18:37,117 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:18:37,117 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:37,117 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:37,118 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-11 17:18:37,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:37,118 INFO L85 PathProgramCache]: Analyzing trace with hash 465675339, now seen corresponding path program 1 times [2024-10-11 17:18:37,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:37,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63563427] [2024-10-11 17:18:37,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:37,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:37,126 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 17:18:37,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:37,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63563427] [2024-10-11 17:18:37,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63563427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:37,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:37,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:18:37,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717374329] [2024-10-11 17:18:37,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:37,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 17:18:37,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:37,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 17:18:37,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 17:18:37,129 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2024-10-11 17:18:37,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 107 transitions, 269 flow. Second operand has 2 states, 2 states have (on average 80.5) internal successors, (161), 2 states have internal predecessors, (161), 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 17:18:37,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:37,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2024-10-11 17:18:37,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:37,596 INFO L124 PetriNetUnfolderBase]: 622/3788 cut-off events. [2024-10-11 17:18:37,596 INFO L125 PetriNetUnfolderBase]: For 1641/2947 co-relation queries the response was YES. [2024-10-11 17:18:37,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5251 conditions, 3788 events. 622/3788 cut-off events. For 1641/2947 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 33590 event pairs, 527 based on Foata normal form. 306/3603 useless extension candidates. Maximal degree in co-relation 3055. Up to 892 conditions per place. [2024-10-11 17:18:37,615 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 16 selfloop transitions, 0 changer transitions 0/95 dead transitions. [2024-10-11 17:18:37,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 95 transitions, 277 flow [2024-10-11 17:18:37,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 17:18:37,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 17:18:37,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 186 transitions. [2024-10-11 17:18:37,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8691588785046729 [2024-10-11 17:18:37,617 INFO L175 Difference]: Start difference. First operand has 109 places, 107 transitions, 269 flow. Second operand 2 states and 186 transitions. [2024-10-11 17:18:37,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 95 transitions, 277 flow [2024-10-11 17:18:37,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 95 transitions, 277 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:18:37,620 INFO L231 Difference]: Finished difference. Result has 102 places, 95 transitions, 245 flow [2024-10-11 17:18:37,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=245, PETRI_PLACES=102, PETRI_TRANSITIONS=95} [2024-10-11 17:18:37,620 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, -7 predicate places. [2024-10-11 17:18:37,621 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 95 transitions, 245 flow [2024-10-11 17:18:37,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.5) internal successors, (161), 2 states have internal predecessors, (161), 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 17:18:37,621 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:37,621 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:37,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-11 17:18:37,622 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-11 17:18:37,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:37,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1851553829, now seen corresponding path program 1 times [2024-10-11 17:18:37,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:37,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164244573] [2024-10-11 17:18:37,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:37,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:37,639 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 17:18:37,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:37,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164244573] [2024-10-11 17:18:37,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164244573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:37,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:37,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:18:37,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852750747] [2024-10-11 17:18:37,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:37,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:37,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:37,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:37,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:37,660 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2024-10-11 17:18:37,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 95 transitions, 245 flow. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 17:18:37,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:37,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2024-10-11 17:18:37,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:38,609 INFO L124 PetriNetUnfolderBase]: 1439/8085 cut-off events. [2024-10-11 17:18:38,610 INFO L125 PetriNetUnfolderBase]: For 1886/1886 co-relation queries the response was YES. [2024-10-11 17:18:38,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10772 conditions, 8085 events. 1439/8085 cut-off events. For 1886/1886 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 81608 event pairs, 1050 based on Foata normal form. 1/7383 useless extension candidates. Maximal degree in co-relation 10764. Up to 2112 conditions per place. [2024-10-11 17:18:38,659 INFO L140 encePairwiseOnDemand]: 104/107 looper letters, 21 selfloop transitions, 2 changer transitions 3/97 dead transitions. [2024-10-11 17:18:38,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 97 transitions, 297 flow [2024-10-11 17:18:38,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:38,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:38,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2024-10-11 17:18:38,661 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7694704049844237 [2024-10-11 17:18:38,661 INFO L175 Difference]: Start difference. First operand has 102 places, 95 transitions, 245 flow. Second operand 3 states and 247 transitions. [2024-10-11 17:18:38,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 97 transitions, 297 flow [2024-10-11 17:18:38,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 97 transitions, 297 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:18:38,664 INFO L231 Difference]: Finished difference. Result has 105 places, 93 transitions, 251 flow [2024-10-11 17:18:38,664 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=251, PETRI_PLACES=105, PETRI_TRANSITIONS=93} [2024-10-11 17:18:38,664 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, -4 predicate places. [2024-10-11 17:18:38,664 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 93 transitions, 251 flow [2024-10-11 17:18:38,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 17:18:38,665 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:38,665 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] [2024-10-11 17:18:38,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-11 17:18:38,665 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-11 17:18:38,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:38,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2129743107, now seen corresponding path program 1 times [2024-10-11 17:18:38,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:38,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917485123] [2024-10-11 17:18:38,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:38,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:38,843 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 17:18:38,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:38,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917485123] [2024-10-11 17:18:38,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917485123] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:38,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:38,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:18:38,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893287046] [2024-10-11 17:18:38,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:38,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:18:38,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:38,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:18:38,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:18:38,938 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 107 [2024-10-11 17:18:38,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 93 transitions, 251 flow. Second operand has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 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 17:18:38,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:38,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 107 [2024-10-11 17:18:38,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:40,019 INFO L124 PetriNetUnfolderBase]: 3704/9558 cut-off events. [2024-10-11 17:18:40,019 INFO L125 PetriNetUnfolderBase]: For 1820/1820 co-relation queries the response was YES. [2024-10-11 17:18:40,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15928 conditions, 9558 events. 3704/9558 cut-off events. For 1820/1820 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 81162 event pairs, 460 based on Foata normal form. 0/8948 useless extension candidates. Maximal degree in co-relation 15918. Up to 4549 conditions per place. [2024-10-11 17:18:40,067 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 46 selfloop transitions, 6 changer transitions 2/112 dead transitions. [2024-10-11 17:18:40,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 112 transitions, 395 flow [2024-10-11 17:18:40,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:18:40,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:18:40,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 425 transitions. [2024-10-11 17:18:40,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.661993769470405 [2024-10-11 17:18:40,069 INFO L175 Difference]: Start difference. First operand has 105 places, 93 transitions, 251 flow. Second operand 6 states and 425 transitions. [2024-10-11 17:18:40,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 112 transitions, 395 flow [2024-10-11 17:18:40,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 112 transitions, 393 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:18:40,075 INFO L231 Difference]: Finished difference. Result has 105 places, 90 transitions, 255 flow [2024-10-11 17:18:40,076 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=255, PETRI_PLACES=105, PETRI_TRANSITIONS=90} [2024-10-11 17:18:40,076 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, -4 predicate places. [2024-10-11 17:18:40,076 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 90 transitions, 255 flow [2024-10-11 17:18:40,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 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 17:18:40,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:40,078 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] [2024-10-11 17:18:40,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-11 17:18:40,078 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-11 17:18:40,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:40,079 INFO L85 PathProgramCache]: Analyzing trace with hash 459562348, now seen corresponding path program 1 times [2024-10-11 17:18:40,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:40,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499759061] [2024-10-11 17:18:40,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:40,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:40,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:40,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:40,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499759061] [2024-10-11 17:18:40,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499759061] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:40,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442804517] [2024-10-11 17:18:40,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:40,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:40,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:40,122 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:18:40,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 17:18:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:40,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 17:18:40,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:40,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 17:18:40,217 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:18:40,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442804517] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:40,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:18:40,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 17:18:40,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928531888] [2024-10-11 17:18:40,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:40,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:40,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:40,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:40,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:18:40,222 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 107 [2024-10-11 17:18:40,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 90 transitions, 255 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 17:18:40,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:40,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 107 [2024-10-11 17:18:40,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:40,982 INFO L124 PetriNetUnfolderBase]: 1758/8878 cut-off events. [2024-10-11 17:18:40,982 INFO L125 PetriNetUnfolderBase]: For 3119/3912 co-relation queries the response was YES. [2024-10-11 17:18:41,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12455 conditions, 8878 events. 1758/8878 cut-off events. For 3119/3912 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 92637 event pairs, 725 based on Foata normal form. 15/7831 useless extension candidates. Maximal degree in co-relation 12445. Up to 1923 conditions per place. [2024-10-11 17:18:41,031 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 23 selfloop transitions, 7 changer transitions 0/101 dead transitions. [2024-10-11 17:18:41,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 101 transitions, 352 flow [2024-10-11 17:18:41,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:41,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:41,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-10-11 17:18:41,033 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8161993769470405 [2024-10-11 17:18:41,033 INFO L175 Difference]: Start difference. First operand has 105 places, 90 transitions, 255 flow. Second operand 3 states and 262 transitions. [2024-10-11 17:18:41,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 101 transitions, 352 flow [2024-10-11 17:18:41,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 101 transitions, 340 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:18:41,036 INFO L231 Difference]: Finished difference. Result has 102 places, 96 transitions, 297 flow [2024-10-11 17:18:41,037 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=297, PETRI_PLACES=102, PETRI_TRANSITIONS=96} [2024-10-11 17:18:41,037 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, -7 predicate places. [2024-10-11 17:18:41,037 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 96 transitions, 297 flow [2024-10-11 17:18:41,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 17:18:41,038 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:41,038 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] [2024-10-11 17:18:41,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-11 17:18:41,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:41,242 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-11 17:18:41,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:41,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1531530531, now seen corresponding path program 1 times [2024-10-11 17:18:41,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:41,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584054173] [2024-10-11 17:18:41,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:41,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:41,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:41,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:41,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584054173] [2024-10-11 17:18:41,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584054173] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:41,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323388181] [2024-10-11 17:18:41,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:41,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:41,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:41,309 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:18:41,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 17:18:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:41,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:18:41,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:41,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:41,443 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:18:41,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:41,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323388181] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:18:41,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:18:41,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:18:41,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799730522] [2024-10-11 17:18:41,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:18:41,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:18:41,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:41,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:18:41,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:18:41,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 107 [2024-10-11 17:18:41,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 96 transitions, 297 flow. Second operand has 10 states, 10 states have (on average 73.3) internal successors, (733), 10 states have internal predecessors, (733), 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 17:18:41,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:41,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 107 [2024-10-11 17:18:41,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:42,694 INFO L124 PetriNetUnfolderBase]: 2499/9970 cut-off events. [2024-10-11 17:18:42,694 INFO L125 PetriNetUnfolderBase]: For 6038/6374 co-relation queries the response was YES. [2024-10-11 17:18:42,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17517 conditions, 9970 events. 2499/9970 cut-off events. For 6038/6374 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 100525 event pairs, 517 based on Foata normal form. 6/9043 useless extension candidates. Maximal degree in co-relation 17506. Up to 2811 conditions per place. [2024-10-11 17:18:42,788 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 43 selfloop transitions, 9 changer transitions 0/118 dead transitions. [2024-10-11 17:18:42,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 118 transitions, 475 flow [2024-10-11 17:18:42,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:18:42,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:18:42,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 688 transitions. [2024-10-11 17:18:42,791 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7144340602284528 [2024-10-11 17:18:42,791 INFO L175 Difference]: Start difference. First operand has 102 places, 96 transitions, 297 flow. Second operand 9 states and 688 transitions. [2024-10-11 17:18:42,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 118 transitions, 475 flow [2024-10-11 17:18:42,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 118 transitions, 461 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:42,801 INFO L231 Difference]: Finished difference. Result has 111 places, 102 transitions, 333 flow [2024-10-11 17:18:42,801 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=333, PETRI_PLACES=111, PETRI_TRANSITIONS=102} [2024-10-11 17:18:42,802 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 2 predicate places. [2024-10-11 17:18:42,802 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 102 transitions, 333 flow [2024-10-11 17:18:42,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 73.3) internal successors, (733), 10 states have internal predecessors, (733), 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 17:18:42,803 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:42,803 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-11 17:18:42,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-11 17:18:43,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:43,004 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-11 17:18:43,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:43,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1763992574, now seen corresponding path program 1 times [2024-10-11 17:18:43,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:43,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776777933] [2024-10-11 17:18:43,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:43,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:43,140 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:43,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:43,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776777933] [2024-10-11 17:18:43,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776777933] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:43,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478706537] [2024-10-11 17:18:43,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:43,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:43,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:43,143 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:18:43,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-11 17:18:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:43,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 17:18:43,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:43,340 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:43,340 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:18:43,438 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:18:43,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478706537] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:18:43,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:18:43,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2024-10-11 17:18:43,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934996385] [2024-10-11 17:18:43,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:18:43,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:18:43,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:43,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:18:43,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:18:43,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 107 [2024-10-11 17:18:43,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 102 transitions, 333 flow. Second operand has 13 states, 13 states have (on average 73.6923076923077) internal successors, (958), 13 states have internal predecessors, (958), 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 17:18:43,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:43,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 107 [2024-10-11 17:18:43,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:44,412 INFO L124 PetriNetUnfolderBase]: 2166/9710 cut-off events. [2024-10-11 17:18:44,412 INFO L125 PetriNetUnfolderBase]: For 5002/5239 co-relation queries the response was YES. [2024-10-11 17:18:44,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16182 conditions, 9710 events. 2166/9710 cut-off events. For 5002/5239 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 99539 event pairs, 510 based on Foata normal form. 24/8785 useless extension candidates. Maximal degree in co-relation 16169. Up to 2296 conditions per place. [2024-10-11 17:18:44,487 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 66 selfloop transitions, 15 changer transitions 0/147 dead transitions. [2024-10-11 17:18:44,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 147 transitions, 687 flow [2024-10-11 17:18:44,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 17:18:44,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 17:18:44,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1143 transitions. [2024-10-11 17:18:44,490 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7121495327102804 [2024-10-11 17:18:44,490 INFO L175 Difference]: Start difference. First operand has 111 places, 102 transitions, 333 flow. Second operand 15 states and 1143 transitions. [2024-10-11 17:18:44,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 147 transitions, 687 flow [2024-10-11 17:18:44,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 147 transitions, 677 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-10-11 17:18:44,496 INFO L231 Difference]: Finished difference. Result has 127 places, 109 transitions, 409 flow [2024-10-11 17:18:44,496 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=409, PETRI_PLACES=127, PETRI_TRANSITIONS=109} [2024-10-11 17:18:44,497 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 18 predicate places. [2024-10-11 17:18:44,497 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 109 transitions, 409 flow [2024-10-11 17:18:44,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 73.6923076923077) internal successors, (958), 13 states have internal predecessors, (958), 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 17:18:44,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:44,498 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 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 17:18:44,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-11 17:18:44,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:44,699 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-11 17:18:44,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:44,699 INFO L85 PathProgramCache]: Analyzing trace with hash -750954077, now seen corresponding path program 1 times [2024-10-11 17:18:44,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:44,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817298055] [2024-10-11 17:18:44,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:44,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:18:44,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 17:18:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:18:44,771 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 17:18:44,772 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 17:18:44,772 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2024-10-11 17:18:44,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-10-11 17:18:44,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-10-11 17:18:44,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-10-11 17:18:44,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2024-10-11 17:18:44,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-10-11 17:18:44,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2024-10-11 17:18:44,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-10-11 17:18:44,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-10-11 17:18:44,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-10-11 17:18:44,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-10-11 17:18:44,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-11 17:18:44,776 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:44,878 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 5 thread instances [2024-10-11 17:18:44,879 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 17:18:44,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:18:44 BasicIcfg [2024-10-11 17:18:44,888 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 17:18:44,889 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 17:18:44,889 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 17:18:44,889 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 17:18:44,889 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:18:25" (3/4) ... [2024-10-11 17:18:44,891 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 17:18:44,892 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 17:18:44,893 INFO L158 Benchmark]: Toolchain (without parser) took 20768.05ms. Allocated memory was 144.7MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 98.8MB in the beginning and 448.8MB in the end (delta: -350.0MB). Peak memory consumption was 743.9MB. Max. memory is 16.1GB. [2024-10-11 17:18:44,893 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:18:44,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 513.33ms. Allocated memory is still 144.7MB. Free memory was 98.5MB in the beginning and 77.0MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 17:18:44,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.29ms. Allocated memory is still 144.7MB. Free memory was 77.0MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:18:44,894 INFO L158 Benchmark]: Boogie Preprocessor took 89.85ms. Allocated memory is still 144.7MB. Free memory was 74.9MB in the beginning and 114.4MB in the end (delta: -39.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 17:18:44,894 INFO L158 Benchmark]: RCFGBuilder took 497.58ms. Allocated memory is still 144.7MB. Free memory was 114.4MB in the beginning and 98.2MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-11 17:18:44,895 INFO L158 Benchmark]: TraceAbstraction took 19598.07ms. Allocated memory was 144.7MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 97.6MB in the beginning and 449.8MB in the end (delta: -352.2MB). Peak memory consumption was 745.7MB. Max. memory is 16.1GB. [2024-10-11 17:18:44,895 INFO L158 Benchmark]: Witness Printer took 3.64ms. Allocated memory is still 1.2GB. Free memory is still 448.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:18:44,896 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 513.33ms. Allocated memory is still 144.7MB. Free memory was 98.5MB in the beginning and 77.0MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.29ms. Allocated memory is still 144.7MB. Free memory was 77.0MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.85ms. Allocated memory is still 144.7MB. Free memory was 74.9MB in the beginning and 114.4MB in the end (delta: -39.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 497.58ms. Allocated memory is still 144.7MB. Free memory was 114.4MB in the beginning and 98.2MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 19598.07ms. Allocated memory was 144.7MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 97.6MB in the beginning and 449.8MB in the end (delta: -352.2MB). Peak memory consumption was 745.7MB. Max. memory is 16.1GB. * Witness Printer took 3.64ms. Allocated memory is still 1.2GB. Free memory is still 448.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 726]: Data race detected Data race detected The following path leads to a data race: [L710] 0 intptr_t x; VAL [x=0] [L719] 0 pthread_t t[5 + 1]; VAL [\old(argc)=55, \old(argv)={57:53}, argc=55, t={3:0}, x=0] [L721] 0 x = 0 VAL [\old(argc)=55, \old(argv)={57:53}, argc=55, t={3:0}, x=0] [L723] 0 intptr_t i = 1; VAL [\old(argc)=55, \old(argv)={57:53}, argc=55, i=1, t={3:0}, x=0] [L723] COND TRUE 0 i <= 5 VAL [\old(argc)=55, \old(argv)={57:53}, argc=55, i=1, t={3:0}, x=0] [L724] 0 pthread_create(t + i, 0, thread, (void *)i) VAL [\old(argc)=55, \old(argv)={57:53}, argc=55, i=1, t={3:0}, x=0] [L724] FCALL, FORK 0 pthread_create(t + i, 0, thread, (void *)i) VAL [\old(arg)={0:1}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=1, t={3:0}, x=0] [L723] 0 i++ VAL [\old(arg)={0:1}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=2, t={3:0}, x=0] [L723] COND TRUE 0 i <= 5 VAL [\old(arg)={0:1}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=2, t={3:0}, x=0] [L724] 0 pthread_create(t + i, 0, thread, (void *)i) VAL [\old(arg)={0:1}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=2, t={3:0}, x=0] [L724] FCALL, FORK 0 pthread_create(t + i, 0, thread, (void *)i) VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=2, t={3:0}, x=0] [L723] 0 i++ VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=3, t={3:0}, x=0] [L723] COND TRUE 0 i <= 5 VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=3, t={3:0}, x=0] [L724] 0 pthread_create(t + i, 0, thread, (void *)i) VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=3, t={3:0}, x=0] [L724] FCALL, FORK 0 pthread_create(t + i, 0, thread, (void *)i) VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=3, t={3:0}, x=0] [L723] 0 i++ VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=4, t={3:0}, x=0] [L723] COND TRUE 0 i <= 5 VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=4, t={3:0}, x=0] [L724] 0 pthread_create(t + i, 0, thread, (void *)i) VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=4, t={3:0}, x=0] [L724] FCALL, FORK 0 pthread_create(t + i, 0, thread, (void *)i) VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=4, t={3:0}, x=0] [L723] 0 i++ VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=5, t={3:0}, x=0] [L723] COND TRUE 0 i <= 5 VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=5, t={3:0}, x=0] [L724] 0 pthread_create(t + i, 0, thread, (void *)i) VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=5, t={3:0}, x=0] [L724] FCALL, FORK 0 pthread_create(t + i, 0, thread, (void *)i) VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=5, t={3:0}, x=0] [L723] 0 i++ VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=6, t={3:0}, x=0] [L723] COND FALSE 0 !(i <= 5) VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, argc=55, i=6, t={3:0}, x=0] [L726] 0 x < 5 + 1 VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, argc=55, t={3:0}, x=0] [L712] 1 intptr_t thread = (intptr_t)arg; VAL [\old(arg)={0:2}, arg={0:1}, thread=1, x=0] [L714] 1 x = thread VAL [\old(arg)={0:2}, arg={0:1}, thread=1, x=1] [L726] 0 x < 5 + 1 VAL [\old(arg)={0:2}, \old(argc)=55, \old(argv)={57:53}, arg={0:1}, argc=55, t={3:0}, thread=1, x=1] Now there is a data race on ~x~0 between C: x = thread [714] and C: x < 5 + 1 [726] - UnprovableResult [Line: 721]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 730]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 78 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 182 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 301 IncrementalHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 6 mSDtfsCounter, 301 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 224 ConstructedInterpolants, 0 QuantifiedInterpolants, 463 SizeOfPredicates, 2 NumberOfNonLiveVariables, 202 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 1/5 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 85 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 194 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 403 IncrementalHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 19 mSDtfsCounter, 403 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=4, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 224 ConstructedInterpolants, 0 QuantifiedInterpolants, 475 SizeOfPredicates, 2 NumberOfNonLiveVariables, 202 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 1/5 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 92 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 352 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 257 mSDsluCounter, 106 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 733 IncrementalHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 23 mSDtfsCounter, 733 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 267 GetRequests, 224 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=265occurred in iteration=5, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 392 NumberOfCodeBlocks, 392 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 413 ConstructedInterpolants, 0 QuantifiedInterpolants, 922 SizeOfPredicates, 8 NumberOfNonLiveVariables, 397 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 1/140 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 99 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.1s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 363 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 286 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 71 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 767 IncrementalHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 28 mSDtfsCounter, 767 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 269 GetRequests, 224 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=5, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 406 NumberOfCodeBlocks, 406 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 413 ConstructedInterpolants, 0 QuantifiedInterpolants, 922 SizeOfPredicates, 8 NumberOfNonLiveVariables, 397 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 1/140 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 5 thread instances CFG has 7 procedures, 106 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.8s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 379 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 316 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 82 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 741 IncrementalHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 9 mSDtfsCounter, 741 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 269 GetRequests, 224 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=409occurred in iteration=6, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 416 NumberOfCodeBlocks, 416 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 413 ConstructedInterpolants, 0 QuantifiedInterpolants, 922 SizeOfPredicates, 8 NumberOfNonLiveVariables, 397 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 1/140 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-11 17:18:44,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE