./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread/sigma.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/sigma.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 236a73c15e935747b9f2e95e881c26c921eba2f2ad7a2b23cf05552665b9f683 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:11:22,959 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:11:23,046 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:11:23,050 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:11:23,051 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:11:23,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:11:23,072 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:11:23,072 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:11:23,073 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:11:23,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:11:23,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:11:23,075 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:11:23,075 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:11:23,076 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:11:23,076 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:11:23,076 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:11:23,077 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:11:23,077 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:11:23,078 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:11:23,078 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:11:23,078 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:11:23,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:11:23,079 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:11:23,079 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:11:23,080 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:11:23,080 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:11:23,080 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:11:23,081 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:11:23,081 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:11:23,081 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:11:23,082 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:11:23,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:11:23,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:11:23,083 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:11:23,083 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:11:23,083 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:11:23,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:11:23,084 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:11:23,084 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:11:23,084 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:11:23,085 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:11:23,085 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 236a73c15e935747b9f2e95e881c26c921eba2f2ad7a2b23cf05552665b9f683 [2024-11-16 23:11:23,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:11:23,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:11:23,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:11:23,350 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:11:23,350 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:11:23,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/sigma.i [2024-11-16 23:11:24,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:11:25,087 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:11:25,088 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/sigma.i [2024-11-16 23:11:25,115 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d8269b5d/d690da9da31248e29d9df1c1d8c34a12/FLAGc9a6430c6 [2024-11-16 23:11:25,406 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d8269b5d/d690da9da31248e29d9df1c1d8c34a12 [2024-11-16 23:11:25,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:11:25,410 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:11:25,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:11:25,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:11:25,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:11:25,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:11:25" (1/1) ... [2024-11-16 23:11:25,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@476f60a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:25, skipping insertion in model container [2024-11-16 23:11:25,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:11:25" (1/1) ... [2024-11-16 23:11:25,471 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:11:25,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:11:25,911 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:11:25,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:11:26,032 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:11:26,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:26 WrapperNode [2024-11-16 23:11:26,033 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:11:26,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:11:26,034 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:11:26,034 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:11:26,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:26" (1/1) ... [2024-11-16 23:11:26,068 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:26" (1/1) ... [2024-11-16 23:11:26,110 INFO L138 Inliner]: procedures = 320, calls = 25, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 127 [2024-11-16 23:11:26,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:11:26,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:11:26,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:11:26,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:11:26,119 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:26" (1/1) ... [2024-11-16 23:11:26,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:26" (1/1) ... [2024-11-16 23:11:26,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:26" (1/1) ... [2024-11-16 23:11:26,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:26" (1/1) ... [2024-11-16 23:11:26,132 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:26" (1/1) ... [2024-11-16 23:11:26,133 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:26" (1/1) ... [2024-11-16 23:11:26,135 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:26" (1/1) ... [2024-11-16 23:11:26,137 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:26" (1/1) ... [2024-11-16 23:11:26,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:11:26,141 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:11:26,141 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:11:26,141 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:11:26,142 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:26" (1/1) ... [2024-11-16 23:11:26,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:11:26,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:11:26,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 23:11:26,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 23:11:26,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:11:26,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:11:26,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 23:11:26,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:11:26,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:11:26,255 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-16 23:11:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-16 23:11:26,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:11:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:11:26,258 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:11:26,451 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:11:26,453 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:11:26,758 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:11:26,759 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:11:26,779 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:11:26,780 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:11:26,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:11:26 BoogieIcfgContainer [2024-11-16 23:11:26,781 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:11:26,784 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:11:26,784 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:11:26,788 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:11:26,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:11:25" (1/3) ... [2024-11-16 23:11:26,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8851bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:11:26, skipping insertion in model container [2024-11-16 23:11:26,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:26" (2/3) ... [2024-11-16 23:11:26,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8851bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:11:26, skipping insertion in model container [2024-11-16 23:11:26,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:11:26" (3/3) ... [2024-11-16 23:11:26,792 INFO L112 eAbstractionObserver]: Analyzing ICFG sigma.i [2024-11-16 23:11:26,806 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:11:26,806 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-11-16 23:11:26,807 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:11:26,883 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-16 23:11:26,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 174 transitions, 355 flow [2024-11-16 23:11:27,038 INFO L124 PetriNetUnfolderBase]: 15/258 cut-off events. [2024-11-16 23:11:27,039 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:11:27,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 258 events. 15/258 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 593 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 143. Up to 4 conditions per place. [2024-11-16 23:11:27,049 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 174 transitions, 355 flow [2024-11-16 23:11:27,058 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 168 places, 174 transitions, 355 flow [2024-11-16 23:11:27,070 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:11:27,081 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;@394835ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:11:27,081 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-16 23:11:27,088 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:11:27,089 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-11-16 23:11:27,089 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:11:27,089 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:11:27,090 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:11:27,091 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-16 23:11:27,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:11:27,099 INFO L85 PathProgramCache]: Analyzing trace with hash -970376250, now seen corresponding path program 1 times [2024-11-16 23:11:27,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:11:27,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610596387] [2024-11-16 23:11:27,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:11:27,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:11:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:11:27,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:11:27,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:11:27,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610596387] [2024-11-16 23:11:27,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610596387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:11:27,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:11:27,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:11:27,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763597651] [2024-11-16 23:11:27,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:11:27,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:11:27,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:11:27,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:11:27,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:11:27,385 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 174 [2024-11-16 23:11:27,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 174 transitions, 355 flow. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:27,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:11:27,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 174 [2024-11-16 23:11:27,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:11:27,471 INFO L124 PetriNetUnfolderBase]: 3/232 cut-off events. [2024-11-16 23:11:27,471 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:11:27,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 232 events. 3/232 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 471 event pairs, 0 based on Foata normal form. 6/211 useless extension candidates. Maximal degree in co-relation 140. Up to 22 conditions per place. [2024-11-16 23:11:27,474 INFO L140 encePairwiseOnDemand]: 160/174 looper letters, 13 selfloop transitions, 1 changer transitions 2/159 dead transitions. [2024-11-16 23:11:27,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 159 transitions, 353 flow [2024-11-16 23:11:27,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:11:27,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:11:27,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 465 transitions. [2024-11-16 23:11:27,493 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8908045977011494 [2024-11-16 23:11:27,495 INFO L175 Difference]: Start difference. First operand has 168 places, 174 transitions, 355 flow. Second operand 3 states and 465 transitions. [2024-11-16 23:11:27,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 159 transitions, 353 flow [2024-11-16 23:11:27,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 159 transitions, 353 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:11:27,504 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 323 flow [2024-11-16 23:11:27,507 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=323, PETRI_PLACES=162, PETRI_TRANSITIONS=157} [2024-11-16 23:11:27,512 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -6 predicate places. [2024-11-16 23:11:27,513 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 323 flow [2024-11-16 23:11:27,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:27,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:11:27,514 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:11:27,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:11:27,514 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-16 23:11:27,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:11:27,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1720938449, now seen corresponding path program 1 times [2024-11-16 23:11:27,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:11:27,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819180813] [2024-11-16 23:11:27,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:11:27,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:11:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:11:27,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:11:27,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:11:27,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819180813] [2024-11-16 23:11:27,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819180813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:11:27,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:11:27,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:11:27,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586242339] [2024-11-16 23:11:27,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:11:27,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:11:27,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:11:27,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:11:27,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:11:27,674 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 174 [2024-11-16 23:11:27,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 157 transitions, 323 flow. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:27,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:11:27,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 174 [2024-11-16 23:11:27,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:11:27,735 INFO L124 PetriNetUnfolderBase]: 5/265 cut-off events. [2024-11-16 23:11:27,735 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-11-16 23:11:27,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 265 events. 5/265 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 593 event pairs, 2 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 261. Up to 16 conditions per place. [2024-11-16 23:11:27,737 INFO L140 encePairwiseOnDemand]: 171/174 looper letters, 9 selfloop transitions, 2 changer transitions 0/156 dead transitions. [2024-11-16 23:11:27,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 156 transitions, 343 flow [2024-11-16 23:11:27,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:11:27,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:11:27,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2024-11-16 23:11:27,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9080459770114943 [2024-11-16 23:11:27,742 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 323 flow. Second operand 3 states and 474 transitions. [2024-11-16 23:11:27,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 156 transitions, 343 flow [2024-11-16 23:11:27,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 156 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:11:27,748 INFO L231 Difference]: Finished difference. Result has 160 places, 156 transitions, 324 flow [2024-11-16 23:11:27,749 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=160, PETRI_TRANSITIONS=156} [2024-11-16 23:11:27,750 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -8 predicate places. [2024-11-16 23:11:27,750 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 156 transitions, 324 flow [2024-11-16 23:11:27,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:27,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:11:27,752 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:11:27,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:11:27,753 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-16 23:11:27,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:11:27,753 INFO L85 PathProgramCache]: Analyzing trace with hash -92362474, now seen corresponding path program 1 times [2024-11-16 23:11:27,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:11:27,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593707855] [2024-11-16 23:11:27,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:11:27,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:11:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:11:27,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:11:27,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:11:27,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593707855] [2024-11-16 23:11:27,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593707855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:11:27,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:11:27,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:11:27,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606053540] [2024-11-16 23:11:27,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:11:27,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:11:27,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:11:27,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:11:27,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:11:27,882 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 174 [2024-11-16 23:11:27,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 156 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:27,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:11:27,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 174 [2024-11-16 23:11:27,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:11:27,933 INFO L124 PetriNetUnfolderBase]: 7/261 cut-off events. [2024-11-16 23:11:27,934 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2024-11-16 23:11:27,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 261 events. 7/261 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 616 event pairs, 4 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 262. Up to 18 conditions per place. [2024-11-16 23:11:27,937 INFO L140 encePairwiseOnDemand]: 170/174 looper letters, 8 selfloop transitions, 1 changer transitions 0/153 dead transitions. [2024-11-16 23:11:27,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 153 transitions, 336 flow [2024-11-16 23:11:27,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:11:27,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:11:27,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2024-11-16 23:11:27,942 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9080459770114943 [2024-11-16 23:11:27,942 INFO L175 Difference]: Start difference. First operand has 160 places, 156 transitions, 324 flow. Second operand 3 states and 474 transitions. [2024-11-16 23:11:27,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 153 transitions, 336 flow [2024-11-16 23:11:27,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 153 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:11:27,947 INFO L231 Difference]: Finished difference. Result has 157 places, 153 transitions, 316 flow [2024-11-16 23:11:27,948 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=157, PETRI_TRANSITIONS=153} [2024-11-16 23:11:27,949 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -11 predicate places. [2024-11-16 23:11:27,950 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 153 transitions, 316 flow [2024-11-16 23:11:27,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:27,952 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:11:27,952 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:11:27,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:11:27,953 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-16 23:11:27,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:11:27,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1850628775, now seen corresponding path program 1 times [2024-11-16 23:11:27,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:11:27,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508285477] [2024-11-16 23:11:27,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:11:27,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:11:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:11:28,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:11:28,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:11:28,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508285477] [2024-11-16 23:11:28,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508285477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:11:28,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:11:28,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:11:28,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512738488] [2024-11-16 23:11:28,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:11:28,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:11:28,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:11:28,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:11:28,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:11:28,089 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 174 [2024-11-16 23:11:28,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 153 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:28,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:11:28,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 174 [2024-11-16 23:11:28,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:11:28,156 INFO L124 PetriNetUnfolderBase]: 8/345 cut-off events. [2024-11-16 23:11:28,157 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-16 23:11:28,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 345 events. 8/345 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1027 event pairs, 2 based on Foata normal form. 1/315 useless extension candidates. Maximal degree in co-relation 350. Up to 18 conditions per place. [2024-11-16 23:11:28,159 INFO L140 encePairwiseOnDemand]: 168/174 looper letters, 7 selfloop transitions, 4 changer transitions 0/155 dead transitions. [2024-11-16 23:11:28,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 155 transitions, 342 flow [2024-11-16 23:11:28,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:11:28,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:11:28,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 484 transitions. [2024-11-16 23:11:28,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9272030651340997 [2024-11-16 23:11:28,163 INFO L175 Difference]: Start difference. First operand has 157 places, 153 transitions, 316 flow. Second operand 3 states and 484 transitions. [2024-11-16 23:11:28,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 155 transitions, 342 flow [2024-11-16 23:11:28,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 155 transitions, 341 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:11:28,171 INFO L231 Difference]: Finished difference. Result has 159 places, 155 transitions, 343 flow [2024-11-16 23:11:28,175 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=159, PETRI_TRANSITIONS=155} [2024-11-16 23:11:28,176 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -9 predicate places. [2024-11-16 23:11:28,176 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 155 transitions, 343 flow [2024-11-16 23:11:28,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:28,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:11:28,178 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:11:28,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:11:28,178 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-16 23:11:28,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:11:28,179 INFO L85 PathProgramCache]: Analyzing trace with hash 127200550, now seen corresponding path program 1 times [2024-11-16 23:11:28,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:11:28,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636100905] [2024-11-16 23:11:28,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:11:28,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:11:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:11:28,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:11:28,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:11:28,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636100905] [2024-11-16 23:11:28,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636100905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:11:28,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:11:28,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:11:28,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583866543] [2024-11-16 23:11:28,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:11:28,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:11:28,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:11:28,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:11:28,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:11:28,340 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 174 [2024-11-16 23:11:28,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 155 transitions, 343 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:28,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:11:28,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 174 [2024-11-16 23:11:28,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:11:28,406 INFO L124 PetriNetUnfolderBase]: 9/396 cut-off events. [2024-11-16 23:11:28,407 INFO L125 PetriNetUnfolderBase]: For 31/35 co-relation queries the response was YES. [2024-11-16 23:11:28,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 396 events. 9/396 cut-off events. For 31/35 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1382 event pairs, 2 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 449. Up to 29 conditions per place. [2024-11-16 23:11:28,410 INFO L140 encePairwiseOnDemand]: 169/174 looper letters, 12 selfloop transitions, 4 changer transitions 0/158 dead transitions. [2024-11-16 23:11:28,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 158 transitions, 385 flow [2024-11-16 23:11:28,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:11:28,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:11:28,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2024-11-16 23:11:28,412 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9195402298850575 [2024-11-16 23:11:28,412 INFO L175 Difference]: Start difference. First operand has 159 places, 155 transitions, 343 flow. Second operand 3 states and 480 transitions. [2024-11-16 23:11:28,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 158 transitions, 385 flow [2024-11-16 23:11:28,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 158 transitions, 375 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:11:28,416 INFO L231 Difference]: Finished difference. Result has 161 places, 158 transitions, 367 flow [2024-11-16 23:11:28,416 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=367, PETRI_PLACES=161, PETRI_TRANSITIONS=158} [2024-11-16 23:11:28,418 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -7 predicate places. [2024-11-16 23:11:28,419 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 158 transitions, 367 flow [2024-11-16 23:11:28,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:28,420 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:11:28,420 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:11:28,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:11:28,420 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-16 23:11:28,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:11:28,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2054956231, now seen corresponding path program 1 times [2024-11-16 23:11:28,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:11:28,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799823568] [2024-11-16 23:11:28,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:11:28,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:11:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:11:28,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:11:28,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:11:28,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799823568] [2024-11-16 23:11:28,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799823568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:11:28,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:11:28,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:11:28,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553765967] [2024-11-16 23:11:28,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:11:28,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:11:28,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:11:28,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:11:28,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:11:28,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 174 [2024-11-16 23:11:28,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 158 transitions, 367 flow. Second operand has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:28,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:11:28,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 174 [2024-11-16 23:11:28,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:11:28,749 INFO L124 PetriNetUnfolderBase]: 5/284 cut-off events. [2024-11-16 23:11:28,749 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-16 23:11:28,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 284 events. 5/284 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 799 event pairs, 0 based on Foata normal form. 2/270 useless extension candidates. Maximal degree in co-relation 329. Up to 15 conditions per place. [2024-11-16 23:11:28,751 INFO L140 encePairwiseOnDemand]: 167/174 looper letters, 8 selfloop transitions, 5 changer transitions 16/158 dead transitions. [2024-11-16 23:11:28,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 158 transitions, 397 flow [2024-11-16 23:11:28,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:11:28,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 23:11:28,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 621 transitions. [2024-11-16 23:11:28,753 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8922413793103449 [2024-11-16 23:11:28,753 INFO L175 Difference]: Start difference. First operand has 161 places, 158 transitions, 367 flow. Second operand 4 states and 621 transitions. [2024-11-16 23:11:28,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 158 transitions, 397 flow [2024-11-16 23:11:28,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 158 transitions, 389 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:11:28,757 INFO L231 Difference]: Finished difference. Result has 163 places, 142 transitions, 345 flow [2024-11-16 23:11:28,757 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=345, PETRI_PLACES=163, PETRI_TRANSITIONS=142} [2024-11-16 23:11:28,758 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -5 predicate places. [2024-11-16 23:11:28,758 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 142 transitions, 345 flow [2024-11-16 23:11:28,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:28,759 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:11:28,759 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:11:28,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:11:28,759 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-16 23:11:28,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:11:28,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1713199361, now seen corresponding path program 1 times [2024-11-16 23:11:28,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:11:28,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427177613] [2024-11-16 23:11:28,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:11:28,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:11:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:11:29,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:11:29,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:11:29,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427177613] [2024-11-16 23:11:29,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427177613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:11:29,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:11:29,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:11:29,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207973162] [2024-11-16 23:11:29,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:11:29,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:11:29,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:11:29,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:11:29,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:11:29,476 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 174 [2024-11-16 23:11:29,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 142 transitions, 345 flow. Second operand has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:29,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:11:29,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 174 [2024-11-16 23:11:29,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:11:29,664 INFO L124 PetriNetUnfolderBase]: 124/612 cut-off events. [2024-11-16 23:11:29,664 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-16 23:11:29,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1008 conditions, 612 events. 124/612 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3081 event pairs, 42 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 973. Up to 253 conditions per place. [2024-11-16 23:11:29,669 INFO L140 encePairwiseOnDemand]: 163/174 looper letters, 32 selfloop transitions, 22 changer transitions 0/163 dead transitions. [2024-11-16 23:11:29,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 163 transitions, 495 flow [2024-11-16 23:11:29,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:11:29,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:11:29,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 847 transitions. [2024-11-16 23:11:29,672 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8113026819923371 [2024-11-16 23:11:29,672 INFO L175 Difference]: Start difference. First operand has 163 places, 142 transitions, 345 flow. Second operand 6 states and 847 transitions. [2024-11-16 23:11:29,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 163 transitions, 495 flow [2024-11-16 23:11:29,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 163 transitions, 485 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-16 23:11:29,678 INFO L231 Difference]: Finished difference. Result has 154 places, 163 transitions, 485 flow [2024-11-16 23:11:29,679 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=485, PETRI_PLACES=154, PETRI_TRANSITIONS=163} [2024-11-16 23:11:29,679 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -14 predicate places. [2024-11-16 23:11:29,680 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 163 transitions, 485 flow [2024-11-16 23:11:29,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:29,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:11:29,681 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:11:29,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:11:29,682 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-16 23:11:29,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:11:29,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1840865768, now seen corresponding path program 1 times [2024-11-16 23:11:29,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:11:29,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452637350] [2024-11-16 23:11:29,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:11:29,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:11:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:11:30,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:11:30,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:11:30,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452637350] [2024-11-16 23:11:30,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452637350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:11:30,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:11:30,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:11:30,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135274389] [2024-11-16 23:11:30,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:11:30,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:11:30,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:11:30,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:11:30,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:11:30,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 174 [2024-11-16 23:11:30,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 163 transitions, 485 flow. Second operand has 6 states, 6 states have (on average 142.5) internal successors, (855), 6 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:30,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:11:30,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 174 [2024-11-16 23:11:30,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:11:30,567 INFO L124 PetriNetUnfolderBase]: 226/882 cut-off events. [2024-11-16 23:11:30,567 INFO L125 PetriNetUnfolderBase]: For 277/324 co-relation queries the response was YES. [2024-11-16 23:11:30,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2050 conditions, 882 events. 226/882 cut-off events. For 277/324 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5076 event pairs, 27 based on Foata normal form. 0/837 useless extension candidates. Maximal degree in co-relation 2013. Up to 404 conditions per place. [2024-11-16 23:11:30,576 INFO L140 encePairwiseOnDemand]: 158/174 looper letters, 40 selfloop transitions, 52 changer transitions 0/210 dead transitions. [2024-11-16 23:11:30,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 210 transitions, 833 flow [2024-11-16 23:11:30,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:11:30,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:11:30,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 908 transitions. [2024-11-16 23:11:30,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8697318007662835 [2024-11-16 23:11:30,580 INFO L175 Difference]: Start difference. First operand has 154 places, 163 transitions, 485 flow. Second operand 6 states and 908 transitions. [2024-11-16 23:11:30,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 210 transitions, 833 flow [2024-11-16 23:11:30,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 210 transitions, 833 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:11:30,589 INFO L231 Difference]: Finished difference. Result has 164 places, 210 transitions, 899 flow [2024-11-16 23:11:30,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=899, PETRI_PLACES=164, PETRI_TRANSITIONS=210} [2024-11-16 23:11:30,591 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -4 predicate places. [2024-11-16 23:11:30,592 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 210 transitions, 899 flow [2024-11-16 23:11:30,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.5) internal successors, (855), 6 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:30,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:11:30,593 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:11:30,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:11:30,593 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-16 23:11:30,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:11:30,594 INFO L85 PathProgramCache]: Analyzing trace with hash 292400609, now seen corresponding path program 1 times [2024-11-16 23:11:30,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:11:30,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508355086] [2024-11-16 23:11:30,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:11:30,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:11:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:11:30,791 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:11:30,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:11:30,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508355086] [2024-11-16 23:11:30,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508355086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:11:30,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475646246] [2024-11-16 23:11:30,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:11:30,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:11:30,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:11:30,798 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:11:30,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 23:11:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:11:30,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 23:11:30,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:11:31,181 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:11:31,181 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:11:31,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:11:31,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475646246] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:11:31,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:11:31,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-16 23:11:31,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983139616] [2024-11-16 23:11:31,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:11:31,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:11:31,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:11:31,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:11:31,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:11:31,762 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 174 [2024-11-16 23:11:31,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 210 transitions, 899 flow. Second operand has 13 states, 13 states have (on average 148.23076923076923) internal successors, (1927), 13 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:31,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:11:31,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 174 [2024-11-16 23:11:31,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:11:31,877 INFO L124 PetriNetUnfolderBase]: 163/692 cut-off events. [2024-11-16 23:11:31,878 INFO L125 PetriNetUnfolderBase]: For 532/583 co-relation queries the response was YES. [2024-11-16 23:11:31,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1846 conditions, 692 events. 163/692 cut-off events. For 532/583 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3818 event pairs, 7 based on Foata normal form. 1/688 useless extension candidates. Maximal degree in co-relation 1803. Up to 144 conditions per place. [2024-11-16 23:11:31,883 INFO L140 encePairwiseOnDemand]: 168/174 looper letters, 5 selfloop transitions, 5 changer transitions 0/158 dead transitions. [2024-11-16 23:11:31,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 158 transitions, 734 flow [2024-11-16 23:11:31,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 23:11:31,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 23:11:31,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1033 transitions. [2024-11-16 23:11:31,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8481116584564861 [2024-11-16 23:11:31,886 INFO L175 Difference]: Start difference. First operand has 164 places, 210 transitions, 899 flow. Second operand 7 states and 1033 transitions. [2024-11-16 23:11:31,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 158 transitions, 734 flow [2024-11-16 23:11:31,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 158 transitions, 714 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-11-16 23:11:31,897 INFO L231 Difference]: Finished difference. Result has 134 places, 157 transitions, 702 flow [2024-11-16 23:11:31,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=702, PETRI_PLACES=134, PETRI_TRANSITIONS=157} [2024-11-16 23:11:31,899 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -34 predicate places. [2024-11-16 23:11:31,900 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 157 transitions, 702 flow [2024-11-16 23:11:31,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 148.23076923076923) internal successors, (1927), 13 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:11:31,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:11:31,902 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:11:31,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 23:11:32,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:11:32,103 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-16 23:11:32,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:11:32,103 INFO L85 PathProgramCache]: Analyzing trace with hash 923016368, now seen corresponding path program 1 times [2024-11-16 23:11:32,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:11:32,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328541478] [2024-11-16 23:11:32,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:11:32,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:11:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:11:32,143 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:11:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:11:32,191 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:11:32,192 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:11:32,193 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr1ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2024-11-16 23:11:32,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2024-11-16 23:11:32,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2024-11-16 23:11:32,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2024-11-16 23:11:32,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2024-11-16 23:11:32,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2024-11-16 23:11:32,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2024-11-16 23:11:32,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2024-11-16 23:11:32,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2024-11-16 23:11:32,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2024-11-16 23:11:32,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2024-11-16 23:11:32,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2024-11-16 23:11:32,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2024-11-16 23:11:32,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2024-11-16 23:11:32,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2024-11-16 23:11:32,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 21 remaining) [2024-11-16 23:11:32,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2024-11-16 23:11:32,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2024-11-16 23:11:32,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2024-11-16 23:11:32,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2024-11-16 23:11:32,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2024-11-16 23:11:32,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:11:32,198 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:11:32,258 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 23:11:32,258 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 23:11:32,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:11:32 BasicIcfg [2024-11-16 23:11:32,263 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 23:11:32,264 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 23:11:32,264 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 23:11:32,264 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 23:11:32,264 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:11:26" (3/4) ... [2024-11-16 23:11:32,268 INFO L137 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-16 23:11:32,337 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 23:11:32,337 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 23:11:32,338 INFO L158 Benchmark]: Toolchain (without parser) took 6927.72ms. Allocated memory was 176.2MB in the beginning and 281.0MB in the end (delta: 104.9MB). Free memory was 115.6MB in the beginning and 153.9MB in the end (delta: -38.2MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. [2024-11-16 23:11:32,338 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 176.2MB. Free memory was 137.4MB in the beginning and 137.2MB in the end (delta: 184.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 23:11:32,338 INFO L158 Benchmark]: CACSL2BoogieTranslator took 618.56ms. Allocated memory is still 176.2MB. Free memory was 115.6MB in the beginning and 79.5MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-16 23:11:32,339 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.83ms. Allocated memory is still 176.2MB. Free memory was 79.5MB in the beginning and 76.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 23:11:32,339 INFO L158 Benchmark]: Boogie Preprocessor took 28.26ms. Allocated memory is still 176.2MB. Free memory was 76.3MB in the beginning and 74.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 23:11:32,339 INFO L158 Benchmark]: IcfgBuilder took 640.41ms. Allocated memory was 176.2MB in the beginning and 232.8MB in the end (delta: 56.6MB). Free memory was 74.7MB in the beginning and 185.0MB in the end (delta: -110.2MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2024-11-16 23:11:32,339 INFO L158 Benchmark]: TraceAbstraction took 5479.24ms. Allocated memory was 232.8MB in the beginning and 281.0MB in the end (delta: 48.2MB). Free memory was 185.0MB in the beginning and 160.2MB in the end (delta: 24.8MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. [2024-11-16 23:11:32,340 INFO L158 Benchmark]: Witness Printer took 73.86ms. Allocated memory is still 281.0MB. Free memory was 160.2MB in the beginning and 153.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-16 23:11:32,344 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 176.2MB. Free memory was 137.4MB in the beginning and 137.2MB in the end (delta: 184.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 618.56ms. Allocated memory is still 176.2MB. Free memory was 115.6MB in the beginning and 79.5MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.83ms. Allocated memory is still 176.2MB. Free memory was 79.5MB in the beginning and 76.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.26ms. Allocated memory is still 176.2MB. Free memory was 76.3MB in the beginning and 74.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 640.41ms. Allocated memory was 176.2MB in the beginning and 232.8MB in the end (delta: 56.6MB). Free memory was 74.7MB in the beginning and 185.0MB in the end (delta: -110.2MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5479.24ms. Allocated memory was 232.8MB in the beginning and 281.0MB in the end (delta: 48.2MB). Free memory was 185.0MB in the beginning and 160.2MB in the end (delta: 24.8MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. * Witness Printer took 73.86ms. Allocated memory is still 281.0MB. Free memory was 160.2MB in the beginning and 153.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1117]: Data race detected Data race detected The following path leads to a data race: [L1112] 0 const int SIGMA = 16; VAL [SIGMA=16] [L1113] 0 int *array; VAL [SIGMA=16, array={0:0}] [L1114] 0 int array_index=-1; VAL [SIGMA=16, array={0:0}, array_index=-1] [L1122] 0 int tid, sum; VAL [SIGMA=16, array={0:0}, array_index=-1] [L1123] 0 pthread_t *t; VAL [SIGMA=16, array={0:0}, array_index=-1] [L1124] EXPR 0 sizeof(pthread_t) * SIGMA VAL [SIGMA=16, array={0:0}, array_index=-1] [L1124] 0 t = (pthread_t *)malloc(sizeof(pthread_t) * SIGMA) VAL [SIGMA=16, array={0:0}, array_index=-1, t={9:0}] [L1125] EXPR 0 sizeof(int) * SIGMA VAL [SIGMA=16, array={0:0}, array_index=-1, t={9:0}] [L1125] 0 array = (int *)malloc(sizeof(int) * SIGMA) VAL [SIGMA=16, array={3:0}, array_index=-1, t={9:0}] [L1126] CALL 0 assume_abort_if_not(t) [L11] COND FALSE 0 !(!cond) VAL [SIGMA=16, \old(cond)=9, array={3:0}, array_index=-1, cond=9] [L1126] RET 0 assume_abort_if_not(t) [L1127] 0 assume_abort_if_not(array) VAL [SIGMA=16, array={3:0}, array_index=-1, t={9:0}] [L1127] CALL 0 assume_abort_if_not(array) [L11] COND FALSE 0 !(!cond) VAL [SIGMA=16, \old(cond)=3, array={3:0}, array_index=-1, cond=3] [L1127] RET 0 assume_abort_if_not(array) [L1128] 0 tid=0 VAL [SIGMA=16, array={3:0}, array_index=-1, t={9:0}, tid=0] [L1128] 0 tid