./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.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 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:43:30,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:43:30,696 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:43:30,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:43:30,699 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:43:30,716 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:43:30,717 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:43:30,717 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:43:30,718 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:43:30,718 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:43:30,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:43:30,719 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:43:30,719 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:43:30,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:43:30,719 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:43:30,719 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:43:30,719 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:43:30,719 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:43:30,720 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:43:30,720 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:43:30,720 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:43:30,720 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:43:30,720 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:43:30,720 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:43:30,721 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:43:30,721 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:43:30,721 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:43:30,721 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:43:30,721 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:43:30,721 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:43:30,721 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:43:30,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:43:30,721 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:43:30,721 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:43:30,721 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:43:30,721 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:43:30,722 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:43:30,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:43:30,722 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:43:30,722 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:43:30,722 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:43:30,722 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:43:30,722 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d [2025-03-04 06:43:30,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:43:30,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:43:30,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:43:30,953 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:43:30,953 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:43:30,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i [2025-03-04 06:43:32,074 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b054a602e/9c21eb9b5dac47e4b52552bc69766d28/FLAG79c1b279c [2025-03-04 06:43:32,317 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:43:32,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i [2025-03-04 06:43:32,326 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b054a602e/9c21eb9b5dac47e4b52552bc69766d28/FLAG79c1b279c [2025-03-04 06:43:32,336 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b054a602e/9c21eb9b5dac47e4b52552bc69766d28 [2025-03-04 06:43:32,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:43:32,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:43:32,339 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:43:32,339 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:43:32,342 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:43:32,343 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:43:32" (1/1) ... [2025-03-04 06:43:32,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43525f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:32, skipping insertion in model container [2025-03-04 06:43:32,343 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:43:32" (1/1) ... [2025-03-04 06:43:32,367 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:43:32,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:43:32,662 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:43:32,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:43:32,744 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:43:32,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:32 WrapperNode [2025-03-04 06:43:32,745 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:43:32,746 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:43:32,746 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:43:32,746 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:43:32,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:32" (1/1) ... [2025-03-04 06:43:32,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:32" (1/1) ... [2025-03-04 06:43:32,800 INFO L138 Inliner]: procedures = 174, calls = 86, calls flagged for inlining = 20, calls inlined = 35, statements flattened = 841 [2025-03-04 06:43:32,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:43:32,801 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:43:32,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:43:32,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:43:32,811 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:32" (1/1) ... [2025-03-04 06:43:32,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:32" (1/1) ... [2025-03-04 06:43:32,827 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:32" (1/1) ... [2025-03-04 06:43:32,828 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:32" (1/1) ... [2025-03-04 06:43:32,868 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:32" (1/1) ... [2025-03-04 06:43:32,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:32" (1/1) ... [2025-03-04 06:43:32,883 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:32" (1/1) ... [2025-03-04 06:43:32,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:32" (1/1) ... [2025-03-04 06:43:32,894 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:43:32,894 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:43:32,894 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:43:32,894 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:43:32,896 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:32" (1/1) ... [2025-03-04 06:43:32,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:43:32,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:43:32,923 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) [2025-03-04 06:43:32,925 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 [2025-03-04 06:43:32,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 06:43:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 06:43:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 06:43:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2025-03-04 06:43:32,941 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2025-03-04 06:43:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:43:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-04 06:43:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 06:43:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-04 06:43:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 06:43:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:43:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 06:43:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:43:32,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:43:32,943 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 06:43:33,053 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:43:33,054 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:43:33,989 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:43:33,989 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:43:34,044 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:43:34,046 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:43:34,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:43:34 BoogieIcfgContainer [2025-03-04 06:43:34,046 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:43:34,048 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:43:34,048 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:43:34,052 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:43:34,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:43:32" (1/3) ... [2025-03-04 06:43:34,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31553c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:43:34, skipping insertion in model container [2025-03-04 06:43:34,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:32" (2/3) ... [2025-03-04 06:43:34,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31553c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:43:34, skipping insertion in model container [2025-03-04 06:43:34,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:43:34" (3/3) ... [2025-03-04 06:43:34,054 INFO L128 eAbstractionObserver]: Analyzing ICFG one_time_barrier_2t.i [2025-03-04 06:43:34,065 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:43:34,066 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG one_time_barrier_2t.i that has 2 procedures, 941 locations, 1 initial locations, 16 loop locations, and 77 error locations. [2025-03-04 06:43:34,066 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:43:34,198 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-04 06:43:34,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 944 places, 1018 transitions, 2043 flow [2025-03-04 06:43:34,680 INFO L124 PetriNetUnfolderBase]: 116/1509 cut-off events. [2025-03-04 06:43:34,683 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:43:34,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1514 conditions, 1509 events. 116/1509 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5662 event pairs, 0 based on Foata normal form. 0/1275 useless extension candidates. Maximal degree in co-relation 913. Up to 4 conditions per place. [2025-03-04 06:43:34,719 INFO L82 GeneralOperation]: Start removeDead. Operand has 944 places, 1018 transitions, 2043 flow [2025-03-04 06:43:34,737 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 944 places, 1018 transitions, 2043 flow [2025-03-04 06:43:34,742 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:43:34,749 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;@19793b8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:43:34,750 INFO L334 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2025-03-04 06:43:34,755 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:43:34,755 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2025-03-04 06:43:34,755 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:43:34,755 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:34,756 INFO L206 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] [2025-03-04 06:43:34,756 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-03-04 06:43:34,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:34,760 INFO L85 PathProgramCache]: Analyzing trace with hash -140479305, now seen corresponding path program 1 times [2025-03-04 06:43:34,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:34,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068684127] [2025-03-04 06:43:34,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:34,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:34,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-04 06:43:34,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-04 06:43:34,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:34,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:35,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:43:35,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:35,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068684127] [2025-03-04 06:43:35,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068684127] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:35,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:35,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:43:35,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213288001] [2025-03-04 06:43:35,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:35,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:43:35,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:35,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:43:35,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:43:36,593 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1018 [2025-03-04 06:43:36,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 944 places, 1018 transitions, 2043 flow. Second operand has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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) [2025-03-04 06:43:36,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:36,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1018 [2025-03-04 06:43:36,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:43:44,836 INFO L124 PetriNetUnfolderBase]: 12711/59452 cut-off events. [2025-03-04 06:43:44,837 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-03-04 06:43:44,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82853 conditions, 59452 events. 12711/59452 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 691920 event pairs, 11413 based on Foata normal form. 5886/58170 useless extension candidates. Maximal degree in co-relation 82164. Up to 23391 conditions per place. [2025-03-04 06:43:45,041 INFO L140 encePairwiseOnDemand]: 954/1018 looper letters, 231 selfloop transitions, 5 changer transitions 3/932 dead transitions. [2025-03-04 06:43:45,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 921 places, 932 transitions, 2343 flow [2025-03-04 06:43:45,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:43:45,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:43:45,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4633 transitions. [2025-03-04 06:43:45,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.758513425016372 [2025-03-04 06:43:45,067 INFO L175 Difference]: Start difference. First operand has 944 places, 1018 transitions, 2043 flow. Second operand 6 states and 4633 transitions. [2025-03-04 06:43:45,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 921 places, 932 transitions, 2343 flow [2025-03-04 06:43:45,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 921 places, 932 transitions, 2343 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:43:45,091 INFO L231 Difference]: Finished difference. Result has 921 places, 929 transitions, 1875 flow [2025-03-04 06:43:45,094 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1018, PETRI_DIFFERENCE_MINUEND_FLOW=1871, PETRI_DIFFERENCE_MINUEND_PLACES=916, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=932, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=927, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1875, PETRI_PLACES=921, PETRI_TRANSITIONS=929} [2025-03-04 06:43:45,098 INFO L279 CegarLoopForPetriNet]: 944 programPoint places, -23 predicate places. [2025-03-04 06:43:45,100 INFO L471 AbstractCegarLoop]: Abstraction has has 921 places, 929 transitions, 1875 flow [2025-03-04 06:43:45,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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) [2025-03-04 06:43:45,103 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:45,103 INFO L206 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] [2025-03-04 06:43:45,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:43:45,103 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-03-04 06:43:45,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:45,104 INFO L85 PathProgramCache]: Analyzing trace with hash -948070873, now seen corresponding path program 1 times [2025-03-04 06:43:45,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:45,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648217249] [2025-03-04 06:43:45,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:45,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:45,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-04 06:43:45,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-04 06:43:45,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:45,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:45,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:43:45,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:45,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648217249] [2025-03-04 06:43:45,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648217249] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:45,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:45,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 06:43:45,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787509941] [2025-03-04 06:43:45,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:45,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:43:45,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:45,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:43:45,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:43:45,190 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 932 out of 1018 [2025-03-04 06:43:45,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 921 places, 929 transitions, 1875 flow. Second operand has 3 states, 3 states have (on average 933.3333333333334) internal successors, (2800), 3 states have internal predecessors, (2800), 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) [2025-03-04 06:43:45,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:45,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 932 of 1018 [2025-03-04 06:43:45,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:43:45,884 INFO L124 PetriNetUnfolderBase]: 247/4793 cut-off events. [2025-03-04 06:43:45,884 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-04 06:43:45,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5116 conditions, 4793 events. 247/4793 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36328 event pairs, 110 based on Foata normal form. 1/4134 useless extension candidates. Maximal degree in co-relation 5032. Up to 306 conditions per place. [2025-03-04 06:43:45,913 INFO L140 encePairwiseOnDemand]: 1015/1018 looper letters, 27 selfloop transitions, 2 changer transitions 0/930 dead transitions. [2025-03-04 06:43:45,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 920 places, 930 transitions, 1935 flow [2025-03-04 06:43:45,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:43:45,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:43:45,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2826 transitions. [2025-03-04 06:43:45,917 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.925343811394892 [2025-03-04 06:43:45,918 INFO L175 Difference]: Start difference. First operand has 921 places, 929 transitions, 1875 flow. Second operand 3 states and 2826 transitions. [2025-03-04 06:43:45,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 920 places, 930 transitions, 1935 flow [2025-03-04 06:43:45,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 915 places, 930 transitions, 1925 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 06:43:45,929 INFO L231 Difference]: Finished difference. Result has 916 places, 930 transitions, 1877 flow [2025-03-04 06:43:45,931 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1018, PETRI_DIFFERENCE_MINUEND_FLOW=1865, PETRI_DIFFERENCE_MINUEND_PLACES=913, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=929, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=927, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1877, PETRI_PLACES=916, PETRI_TRANSITIONS=930} [2025-03-04 06:43:45,931 INFO L279 CegarLoopForPetriNet]: 944 programPoint places, -28 predicate places. [2025-03-04 06:43:45,931 INFO L471 AbstractCegarLoop]: Abstraction has has 916 places, 930 transitions, 1877 flow [2025-03-04 06:43:45,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 933.3333333333334) internal successors, (2800), 3 states have internal predecessors, (2800), 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) [2025-03-04 06:43:45,933 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:45,933 INFO L206 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] [2025-03-04 06:43:45,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:43:45,933 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-03-04 06:43:45,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:45,934 INFO L85 PathProgramCache]: Analyzing trace with hash 2125788506, now seen corresponding path program 1 times [2025-03-04 06:43:45,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:45,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117564938] [2025-03-04 06:43:45,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:45,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:45,947 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 06:43:45,960 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 06:43:45,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:45,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:46,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:43:46,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:46,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117564938] [2025-03-04 06:43:46,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117564938] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:46,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:46,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:43:46,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185216462] [2025-03-04 06:43:46,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:46,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:43:46,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:46,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:43:46,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:43:47,539 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1018 [2025-03-04 06:43:47,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 916 places, 930 transitions, 1877 flow. Second operand has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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) [2025-03-04 06:43:47,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:47,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1018 [2025-03-04 06:43:47,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:43:54,898 INFO L124 PetriNetUnfolderBase]: 12711/59476 cut-off events. [2025-03-04 06:43:54,899 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-03-04 06:43:54,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82892 conditions, 59476 events. 12711/59476 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 692421 event pairs, 11413 based on Foata normal form. 0/52310 useless extension candidates. Maximal degree in co-relation 82813. Up to 23394 conditions per place. [2025-03-04 06:43:55,105 INFO L140 encePairwiseOnDemand]: 1012/1018 looper letters, 232 selfloop transitions, 5 changer transitions 0/929 dead transitions. [2025-03-04 06:43:55,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 920 places, 929 transitions, 2349 flow [2025-03-04 06:43:55,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:43:55,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:43:55,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4575 transitions. [2025-03-04 06:43:55,113 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7490176817288802 [2025-03-04 06:43:55,113 INFO L175 Difference]: Start difference. First operand has 916 places, 930 transitions, 1877 flow. Second operand 6 states and 4575 transitions. [2025-03-04 06:43:55,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 920 places, 929 transitions, 2349 flow [2025-03-04 06:43:55,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 919 places, 929 transitions, 2347 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:43:55,123 INFO L231 Difference]: Finished difference. Result has 919 places, 929 transitions, 1883 flow [2025-03-04 06:43:55,125 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1018, PETRI_DIFFERENCE_MINUEND_FLOW=1873, PETRI_DIFFERENCE_MINUEND_PLACES=914, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=929, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=924, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1883, PETRI_PLACES=919, PETRI_TRANSITIONS=929} [2025-03-04 06:43:55,125 INFO L279 CegarLoopForPetriNet]: 944 programPoint places, -25 predicate places. [2025-03-04 06:43:55,125 INFO L471 AbstractCegarLoop]: Abstraction has has 919 places, 929 transitions, 1883 flow [2025-03-04 06:43:55,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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) [2025-03-04 06:43:55,128 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:55,128 INFO L206 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] [2025-03-04 06:43:55,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 06:43:55,128 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-03-04 06:43:55,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:55,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1153618322, now seen corresponding path program 1 times [2025-03-04 06:43:55,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:55,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369962019] [2025-03-04 06:43:55,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:55,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:55,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-04 06:43:55,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-04 06:43:55,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:55,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:55,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:43:55,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:55,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369962019] [2025-03-04 06:43:55,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369962019] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:55,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:55,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:43:55,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882030424] [2025-03-04 06:43:55,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:55,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:43:55,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:55,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:43:55,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:43:56,290 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1018 [2025-03-04 06:43:56,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 919 places, 929 transitions, 1883 flow. Second operand has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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) [2025-03-04 06:43:56,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:56,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1018 [2025-03-04 06:43:56,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:04,375 INFO L124 PetriNetUnfolderBase]: 12711/59474 cut-off events. [2025-03-04 06:44:04,375 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2025-03-04 06:44:04,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82899 conditions, 59474 events. 12711/59474 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 692293 event pairs, 11413 based on Foata normal form. 0/52310 useless extension candidates. Maximal degree in co-relation 82806. Up to 23394 conditions per place. [2025-03-04 06:44:04,601 INFO L140 encePairwiseOnDemand]: 1012/1018 looper letters, 232 selfloop transitions, 5 changer transitions 0/928 dead transitions. [2025-03-04 06:44:04,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 923 places, 928 transitions, 2355 flow [2025-03-04 06:44:04,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:44:04,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:44:04,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4575 transitions. [2025-03-04 06:44:04,608 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7490176817288802 [2025-03-04 06:44:04,608 INFO L175 Difference]: Start difference. First operand has 919 places, 929 transitions, 1883 flow. Second operand 6 states and 4575 transitions. [2025-03-04 06:44:04,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 923 places, 928 transitions, 2355 flow [2025-03-04 06:44:04,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 918 places, 928 transitions, 2345 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 06:44:04,621 INFO L231 Difference]: Finished difference. Result has 918 places, 928 transitions, 1881 flow [2025-03-04 06:44:04,623 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1018, PETRI_DIFFERENCE_MINUEND_FLOW=1871, PETRI_DIFFERENCE_MINUEND_PLACES=913, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=928, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=923, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1881, PETRI_PLACES=918, PETRI_TRANSITIONS=928} [2025-03-04 06:44:04,624 INFO L279 CegarLoopForPetriNet]: 944 programPoint places, -26 predicate places. [2025-03-04 06:44:04,624 INFO L471 AbstractCegarLoop]: Abstraction has has 918 places, 928 transitions, 1881 flow [2025-03-04 06:44:04,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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) [2025-03-04 06:44:04,627 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:04,627 INFO L206 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] [2025-03-04 06:44:04,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 06:44:04,627 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-03-04 06:44:04,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:04,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1347387930, now seen corresponding path program 1 times [2025-03-04 06:44:04,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:04,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610438559] [2025-03-04 06:44:04,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:04,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:04,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 06:44:04,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 06:44:04,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:04,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:04,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:44:04,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:04,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610438559] [2025-03-04 06:44:04,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610438559] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:44:04,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116501877] [2025-03-04 06:44:04,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:04,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:44:04,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:44:04,709 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) [2025-03-04 06:44:04,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 06:44:04,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 06:44:04,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 06:44:04,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:04,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:04,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 06:44:04,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:44:04,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:44:04,868 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 06:44:04,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:44:04,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116501877] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 06:44:04,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 06:44:04,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2025-03-04 06:44:04,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92129157] [2025-03-04 06:44:04,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 06:44:04,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 06:44:04,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:04,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 06:44:04,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-04 06:44:04,978 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 931 out of 1018 [2025-03-04 06:44:04,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 918 places, 928 transitions, 1881 flow. Second operand has 5 states, 5 states have (on average 932.8) internal successors, (4664), 5 states have internal predecessors, (4664), 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) [2025-03-04 06:44:04,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:04,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 931 of 1018 [2025-03-04 06:44:04,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:05,831 INFO L124 PetriNetUnfolderBase]: 247/4791 cut-off events. [2025-03-04 06:44:05,831 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-03-04 06:44:05,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5122 conditions, 4791 events. 247/4791 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36219 event pairs, 110 based on Foata normal form. 1/4136 useless extension candidates. Maximal degree in co-relation 5015. Up to 305 conditions per place. [2025-03-04 06:44:05,864 INFO L140 encePairwiseOnDemand]: 1014/1018 looper letters, 28 selfloop transitions, 4 changer transitions 0/930 dead transitions. [2025-03-04 06:44:05,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 921 places, 930 transitions, 1949 flow [2025-03-04 06:44:05,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 06:44:05,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 06:44:05,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3757 transitions. [2025-03-04 06:44:05,870 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9226424361493124 [2025-03-04 06:44:05,871 INFO L175 Difference]: Start difference. First operand has 918 places, 928 transitions, 1881 flow. Second operand 4 states and 3757 transitions. [2025-03-04 06:44:05,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 921 places, 930 transitions, 1949 flow [2025-03-04 06:44:05,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 916 places, 930 transitions, 1939 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 06:44:05,881 INFO L231 Difference]: Finished difference. Result has 918 places, 929 transitions, 1891 flow [2025-03-04 06:44:05,882 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1018, PETRI_DIFFERENCE_MINUEND_FLOW=1871, PETRI_DIFFERENCE_MINUEND_PLACES=913, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=928, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=924, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1891, PETRI_PLACES=918, PETRI_TRANSITIONS=929} [2025-03-04 06:44:05,884 INFO L279 CegarLoopForPetriNet]: 944 programPoint places, -26 predicate places. [2025-03-04 06:44:05,884 INFO L471 AbstractCegarLoop]: Abstraction has has 918 places, 929 transitions, 1891 flow [2025-03-04 06:44:05,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 932.8) internal successors, (4664), 5 states have internal predecessors, (4664), 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) [2025-03-04 06:44:05,886 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:05,887 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:44:05,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 06:44:06,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:44:06,088 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-03-04 06:44:06,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:06,089 INFO L85 PathProgramCache]: Analyzing trace with hash 581853477, now seen corresponding path program 2 times [2025-03-04 06:44:06,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:06,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515873298] [2025-03-04 06:44:06,089 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:44:06,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:06,116 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 102 statements into 2 equivalence classes. [2025-03-04 06:44:06,120 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 46 of 102 statements. [2025-03-04 06:44:06,120 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:44:06,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:06,321 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-03-04 06:44:06,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:06,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515873298] [2025-03-04 06:44:06,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515873298] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:06,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:06,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:44:06,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957840230] [2025-03-04 06:44:06,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:06,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:44:06,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:06,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:44:06,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:44:07,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1018 [2025-03-04 06:44:07,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 918 places, 929 transitions, 1891 flow. Second operand has 6 states, 6 states have (on average 726.3333333333334) internal successors, (4358), 6 states have internal predecessors, (4358), 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) [2025-03-04 06:44:07,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:07,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1018 [2025-03-04 06:44:07,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:15,481 INFO L124 PetriNetUnfolderBase]: 12501/59027 cut-off events. [2025-03-04 06:44:15,482 INFO L125 PetriNetUnfolderBase]: For 13/16 co-relation queries the response was YES. [2025-03-04 06:44:15,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82051 conditions, 59027 events. 12501/59027 cut-off events. For 13/16 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 688444 event pairs, 11211 based on Foata normal form. 0/51923 useless extension candidates. Maximal degree in co-relation 81921. Up to 22997 conditions per place. [2025-03-04 06:44:15,692 INFO L140 encePairwiseOnDemand]: 1012/1018 looper letters, 231 selfloop transitions, 5 changer transitions 0/928 dead transitions. [2025-03-04 06:44:15,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 922 places, 928 transitions, 2361 flow [2025-03-04 06:44:15,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:44:15,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:44:15,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4575 transitions. [2025-03-04 06:44:15,698 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7490176817288802 [2025-03-04 06:44:15,698 INFO L175 Difference]: Start difference. First operand has 918 places, 929 transitions, 1891 flow. Second operand 6 states and 4575 transitions. [2025-03-04 06:44:15,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 922 places, 928 transitions, 2361 flow [2025-03-04 06:44:15,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 921 places, 928 transitions, 2357 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-03-04 06:44:15,710 INFO L231 Difference]: Finished difference. Result has 921 places, 928 transitions, 1895 flow [2025-03-04 06:44:15,711 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1018, PETRI_DIFFERENCE_MINUEND_FLOW=1885, PETRI_DIFFERENCE_MINUEND_PLACES=916, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=928, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=923, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1895, PETRI_PLACES=921, PETRI_TRANSITIONS=928} [2025-03-04 06:44:15,712 INFO L279 CegarLoopForPetriNet]: 944 programPoint places, -23 predicate places. [2025-03-04 06:44:15,712 INFO L471 AbstractCegarLoop]: Abstraction has has 921 places, 928 transitions, 1895 flow [2025-03-04 06:44:15,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 726.3333333333334) internal successors, (4358), 6 states have internal predecessors, (4358), 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) [2025-03-04 06:44:15,714 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:15,714 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:44:15,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 06:44:15,714 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-03-04 06:44:15,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:15,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1878936032, now seen corresponding path program 1 times [2025-03-04 06:44:15,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:15,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181021870] [2025-03-04 06:44:15,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:15,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:15,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-04 06:44:15,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 06:44:15,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:15,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:16,121 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-04 06:44:16,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:16,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181021870] [2025-03-04 06:44:16,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181021870] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:16,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:16,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:44:16,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211882759] [2025-03-04 06:44:16,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:16,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:44:16,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:16,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:44:16,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:44:16,902 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1018 [2025-03-04 06:44:16,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 921 places, 928 transitions, 1895 flow. Second operand has 6 states, 6 states have (on average 726.3333333333334) internal successors, (4358), 6 states have internal predecessors, (4358), 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) [2025-03-04 06:44:16,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:16,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1018 [2025-03-04 06:44:16,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand