./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_22-deref_read.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/goblint-regression/04-mutex_22-deref_read.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 8d306ff8cfbc22ceebe04735dbb58cf2d83206c78fa42d12e01716373b332b54 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:44:55,850 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:44:55,909 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:44:55,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:44:55,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:44:55,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:44:55,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:44:55,934 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:44:55,935 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:44:55,935 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:44:55,935 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:44:55,935 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:44:55,936 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:44:55,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:44:55,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:44:55,936 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:44:55,936 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:44:55,936 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:44:55,936 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:44:55,936 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:44:55,936 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:44:55,936 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:44:55,936 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:44:55,937 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:44:55,937 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:44:55,937 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:44:55,937 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:44:55,937 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:44:55,937 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:44:55,937 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:44:55,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:44:55,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:44:55,937 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:44:55,937 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:44:55,937 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:44:55,937 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:44:55,937 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:44:55,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:44:55,937 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:44:55,937 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:44:55,937 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:44:55,938 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:44:55,938 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 -> 8d306ff8cfbc22ceebe04735dbb58cf2d83206c78fa42d12e01716373b332b54 [2025-03-04 06:44:56,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:44:56,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:44:56,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:44:56,177 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:44:56,177 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:44:56,178 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_22-deref_read.i [2025-03-04 06:44:57,292 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b3a80e90/033543fc70f749f5bda0c7de19f83078/FLAGd124306d8 [2025-03-04 06:44:57,591 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:44:57,595 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_22-deref_read.i [2025-03-04 06:44:57,613 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b3a80e90/033543fc70f749f5bda0c7de19f83078/FLAGd124306d8 [2025-03-04 06:44:57,633 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b3a80e90/033543fc70f749f5bda0c7de19f83078 [2025-03-04 06:44:57,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:44:57,638 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:44:57,641 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:44:57,641 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:44:57,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:44:57,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:44:57" (1/1) ... [2025-03-04 06:44:57,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29bb8810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:57, skipping insertion in model container [2025-03-04 06:44:57,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:44:57" (1/1) ... [2025-03-04 06:44:57,683 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:44:57,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:44:57,902 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:44:57,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:44:57,970 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:44:57,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:57 WrapperNode [2025-03-04 06:44:57,971 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:44:57,972 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:44:57,972 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:44:57,972 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:44:57,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:57" (1/1) ... [2025-03-04 06:44:57,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:57" (1/1) ... [2025-03-04 06:44:58,001 INFO L138 Inliner]: procedures = 162, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2025-03-04 06:44:58,002 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:44:58,003 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:44:58,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:44:58,003 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:44:58,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:57" (1/1) ... [2025-03-04 06:44:58,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:57" (1/1) ... [2025-03-04 06:44:58,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:57" (1/1) ... [2025-03-04 06:44:58,011 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:57" (1/1) ... [2025-03-04 06:44:58,017 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:57" (1/1) ... [2025-03-04 06:44:58,018 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:57" (1/1) ... [2025-03-04 06:44:58,019 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:57" (1/1) ... [2025-03-04 06:44:58,019 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:57" (1/1) ... [2025-03-04 06:44:58,020 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:44:58,021 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:44:58,022 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:44:58,022 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:44:58,023 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:57" (1/1) ... [2025-03-04 06:44:58,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:44:58,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:44:58,050 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 06:44:58,052 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 06:44:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 06:44:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 06:44:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:44:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-04 06:44:58,068 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-04 06:44:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:44:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 06:44:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:44:58,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:44:58,069 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 06:44:58,155 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:44:58,156 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:44:58,280 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:44:58,280 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:44:58,300 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:44:58,301 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:44:58,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:44:58 BoogieIcfgContainer [2025-03-04 06:44:58,301 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:44:58,303 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:44:58,303 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:44:58,307 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:44:58,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:44:57" (1/3) ... [2025-03-04 06:44:58,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7027eeb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:44:58, skipping insertion in model container [2025-03-04 06:44:58,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:57" (2/3) ... [2025-03-04 06:44:58,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7027eeb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:44:58, skipping insertion in model container [2025-03-04 06:44:58,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:44:58" (3/3) ... [2025-03-04 06:44:58,309 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_22-deref_read.i [2025-03-04 06:44:58,321 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:44:58,322 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_22-deref_read.i that has 2 procedures, 73 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-03-04 06:44:58,323 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:44:58,369 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 06:44:58,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 72 transitions, 148 flow [2025-03-04 06:44:58,428 INFO L124 PetriNetUnfolderBase]: 0/71 cut-off events. [2025-03-04 06:44:58,431 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:44:58,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 0/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-03-04 06:44:58,433 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 72 transitions, 148 flow [2025-03-04 06:44:58,435 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 71 transitions, 145 flow [2025-03-04 06:44:58,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:44:58,456 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;@54cd0ce7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:44:58,458 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-04 06:44:58,467 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:44:58,468 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2025-03-04 06:44:58,468 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:44:58,468 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:58,469 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] [2025-03-04 06:44:58,469 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 06:44:58,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:58,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1271105756, now seen corresponding path program 1 times [2025-03-04 06:44:58,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:58,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189451906] [2025-03-04 06:44:58,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:58,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:58,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 06:44:58,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 06:44:58,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:58,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:58,659 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 06:44:58,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:58,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189451906] [2025-03-04 06:44:58,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189451906] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:58,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:58,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:44:58,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345177173] [2025-03-04 06:44:58,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:58,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:44:58,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:58,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:44:58,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:44:58,701 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 72 [2025-03-04 06:44:58,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 06:44:58,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:58,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 72 [2025-03-04 06:44:58,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:58,769 INFO L124 PetriNetUnfolderBase]: 16/173 cut-off events. [2025-03-04 06:44:58,769 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:44:58,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 173 events. 16/173 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 553 event pairs, 9 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 192. Up to 39 conditions per place. [2025-03-04 06:44:58,771 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 10 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2025-03-04 06:44:58,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 72 transitions, 171 flow [2025-03-04 06:44:58,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:44:58,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:44:58,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2025-03-04 06:44:58,783 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9120370370370371 [2025-03-04 06:44:58,784 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 145 flow. Second operand 3 states and 197 transitions. [2025-03-04 06:44:58,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 72 transitions, 171 flow [2025-03-04 06:44:58,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 72 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:44:58,790 INFO L231 Difference]: Finished difference. Result has 75 places, 71 transitions, 154 flow [2025-03-04 06:44:58,792 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=75, PETRI_TRANSITIONS=71} [2025-03-04 06:44:58,794 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 0 predicate places. [2025-03-04 06:44:58,796 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 71 transitions, 154 flow [2025-03-04 06:44:58,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 06:44:58,797 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:58,797 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] [2025-03-04 06:44:58,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:44:58,797 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 06:44:58,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:58,798 INFO L85 PathProgramCache]: Analyzing trace with hash 989824677, now seen corresponding path program 1 times [2025-03-04 06:44:58,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:58,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600989674] [2025-03-04 06:44:58,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:58,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:58,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 06:44:58,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 06:44:58,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:58,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:58,865 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 06:44:58,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:58,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600989674] [2025-03-04 06:44:58,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600989674] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:58,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:58,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:44:58,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997483955] [2025-03-04 06:44:58,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:58,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:44:58,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:58,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:44:58,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:44:58,883 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 72 [2025-03-04 06:44:58,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 06:44:58,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:58,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 72 [2025-03-04 06:44:58,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:58,932 INFO L124 PetriNetUnfolderBase]: 17/163 cut-off events. [2025-03-04 06:44:58,933 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:44:58,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 163 events. 17/163 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 514 event pairs, 12 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 192. Up to 36 conditions per place. [2025-03-04 06:44:58,935 INFO L140 encePairwiseOnDemand]: 69/72 looper letters, 12 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2025-03-04 06:44:58,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 72 transitions, 184 flow [2025-03-04 06:44:58,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:44:58,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:44:58,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2025-03-04 06:44:58,937 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2025-03-04 06:44:58,937 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 154 flow. Second operand 3 states and 192 transitions. [2025-03-04 06:44:58,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 72 transitions, 184 flow [2025-03-04 06:44:58,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 72 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:44:58,939 INFO L231 Difference]: Finished difference. Result has 76 places, 70 transitions, 156 flow [2025-03-04 06:44:58,939 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=76, PETRI_TRANSITIONS=70} [2025-03-04 06:44:58,939 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 1 predicate places. [2025-03-04 06:44:58,940 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 70 transitions, 156 flow [2025-03-04 06:44:58,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 06:44:58,940 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:58,940 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] [2025-03-04 06:44:58,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:44:58,940 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 06:44:58,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:58,941 INFO L85 PathProgramCache]: Analyzing trace with hash 169707572, now seen corresponding path program 1 times [2025-03-04 06:44:58,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:58,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524321953] [2025-03-04 06:44:58,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:58,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:58,958 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 06:44:58,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 06:44:58,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:58,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:59,305 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 06:44:59,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:59,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524321953] [2025-03-04 06:44:59,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524321953] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:59,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:59,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:44:59,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428697454] [2025-03-04 06:44:59,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:59,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:44:59,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:59,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:44:59,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:44:59,360 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 72 [2025-03-04 06:44:59,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 70 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 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 06:44:59,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:59,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 72 [2025-03-04 06:44:59,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:59,488 INFO L124 PetriNetUnfolderBase]: 79/330 cut-off events. [2025-03-04 06:44:59,488 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:44:59,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 330 events. 79/330 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1463 event pairs, 25 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 504. Up to 133 conditions per place. [2025-03-04 06:44:59,492 INFO L140 encePairwiseOnDemand]: 61/72 looper letters, 21 selfloop transitions, 22 changer transitions 4/99 dead transitions. [2025-03-04 06:44:59,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 99 transitions, 308 flow [2025-03-04 06:44:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:44:59,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:44:59,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 372 transitions. [2025-03-04 06:44:59,494 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8611111111111112 [2025-03-04 06:44:59,494 INFO L175 Difference]: Start difference. First operand has 76 places, 70 transitions, 156 flow. Second operand 6 states and 372 transitions. [2025-03-04 06:44:59,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 99 transitions, 308 flow [2025-03-04 06:44:59,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 99 transitions, 304 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:44:59,496 INFO L231 Difference]: Finished difference. Result has 84 places, 91 transitions, 302 flow [2025-03-04 06:44:59,496 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=302, PETRI_PLACES=84, PETRI_TRANSITIONS=91} [2025-03-04 06:44:59,496 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 9 predicate places. [2025-03-04 06:44:59,497 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 91 transitions, 302 flow [2025-03-04 06:44:59,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 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 06:44:59,497 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:59,497 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] [2025-03-04 06:44:59,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 06:44:59,497 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 06:44:59,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:59,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1770000840, now seen corresponding path program 1 times [2025-03-04 06:44:59,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:59,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092251594] [2025-03-04 06:44:59,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:59,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:59,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 06:44:59,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 06:44:59,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:59,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:59,528 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 06:44:59,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:59,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092251594] [2025-03-04 06:44:59,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092251594] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:59,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:59,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:44:59,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193333002] [2025-03-04 06:44:59,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:59,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:44:59,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:59,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:44:59,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:44:59,535 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 72 [2025-03-04 06:44:59,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 91 transitions, 302 flow. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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 06:44:59,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:59,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 72 [2025-03-04 06:44:59,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:59,573 INFO L124 PetriNetUnfolderBase]: 50/298 cut-off events. [2025-03-04 06:44:59,573 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2025-03-04 06:44:59,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 298 events. 50/298 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1229 event pairs, 8 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 506. Up to 60 conditions per place. [2025-03-04 06:44:59,575 INFO L140 encePairwiseOnDemand]: 70/72 looper letters, 9 selfloop transitions, 1 changer transitions 0/92 dead transitions. [2025-03-04 06:44:59,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 92 transitions, 324 flow [2025-03-04 06:44:59,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:44:59,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:44:59,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2025-03-04 06:44:59,577 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2025-03-04 06:44:59,577 INFO L175 Difference]: Start difference. First operand has 84 places, 91 transitions, 302 flow. Second operand 3 states and 200 transitions. [2025-03-04 06:44:59,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 92 transitions, 324 flow [2025-03-04 06:44:59,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 92 transitions, 324 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:44:59,580 INFO L231 Difference]: Finished difference. Result has 85 places, 90 transitions, 302 flow [2025-03-04 06:44:59,581 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=302, PETRI_PLACES=85, PETRI_TRANSITIONS=90} [2025-03-04 06:44:59,583 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 10 predicate places. [2025-03-04 06:44:59,583 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 90 transitions, 302 flow [2025-03-04 06:44:59,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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 06:44:59,583 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:59,583 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] [2025-03-04 06:44:59,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 06:44:59,584 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 06:44:59,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:59,585 INFO L85 PathProgramCache]: Analyzing trace with hash 578894542, now seen corresponding path program 1 times [2025-03-04 06:44:59,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:59,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49061432] [2025-03-04 06:44:59,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:59,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:59,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-04 06:44:59,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-04 06:44:59,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:59,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:59,803 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 06:44:59,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:59,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49061432] [2025-03-04 06:44:59,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49061432] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:59,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:59,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:44:59,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497652044] [2025-03-04 06:44:59,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:59,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:44:59,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:59,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:44:59,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:44:59,850 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 72 [2025-03-04 06:44:59,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 90 transitions, 302 flow. Second operand has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 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 06:44:59,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:59,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 72 [2025-03-04 06:44:59,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:59,949 INFO L124 PetriNetUnfolderBase]: 138/485 cut-off events. [2025-03-04 06:44:59,949 INFO L125 PetriNetUnfolderBase]: For 146/168 co-relation queries the response was YES. [2025-03-04 06:44:59,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 485 events. 138/485 cut-off events. For 146/168 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2414 event pairs, 37 based on Foata normal form. 0/471 useless extension candidates. Maximal degree in co-relation 1094. Up to 235 conditions per place. [2025-03-04 06:44:59,951 INFO L140 encePairwiseOnDemand]: 61/72 looper letters, 39 selfloop transitions, 29 changer transitions 7/125 dead transitions. [2025-03-04 06:44:59,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 125 transitions, 592 flow [2025-03-04 06:44:59,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:44:59,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:44:59,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 357 transitions. [2025-03-04 06:44:59,953 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8263888888888888 [2025-03-04 06:44:59,953 INFO L175 Difference]: Start difference. First operand has 85 places, 90 transitions, 302 flow. Second operand 6 states and 357 transitions. [2025-03-04 06:44:59,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 125 transitions, 592 flow [2025-03-04 06:44:59,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 125 transitions, 591 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:44:59,956 INFO L231 Difference]: Finished difference. Result has 94 places, 114 transitions, 555 flow [2025-03-04 06:44:59,956 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=555, PETRI_PLACES=94, PETRI_TRANSITIONS=114} [2025-03-04 06:44:59,956 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 19 predicate places. [2025-03-04 06:44:59,957 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 114 transitions, 555 flow [2025-03-04 06:44:59,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 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 06:44:59,957 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:59,957 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] [2025-03-04 06:44:59,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 06:44:59,957 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 06:44:59,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:59,958 INFO L85 PathProgramCache]: Analyzing trace with hash 697160840, now seen corresponding path program 1 times [2025-03-04 06:44:59,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:59,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273341589] [2025-03-04 06:44:59,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:59,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:59,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-04 06:44:59,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-04 06:44:59,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:59,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:00,010 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 06:45:00,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:00,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273341589] [2025-03-04 06:45:00,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273341589] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:00,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:00,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 06:45:00,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964429511] [2025-03-04 06:45:00,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:00,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:45:00,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:00,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:45:00,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:45:00,022 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 72 [2025-03-04 06:45:00,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 114 transitions, 555 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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 06:45:00,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:00,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 72 [2025-03-04 06:45:00,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:00,039 INFO L124 PetriNetUnfolderBase]: 2/109 cut-off events. [2025-03-04 06:45:00,039 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2025-03-04 06:45:00,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 109 events. 2/109 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 142 event pairs, 1 based on Foata normal form. 2/111 useless extension candidates. Maximal degree in co-relation 181. Up to 12 conditions per place. [2025-03-04 06:45:00,039 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2025-03-04 06:45:00,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 67 transitions, 219 flow [2025-03-04 06:45:00,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:45:00,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:45:00,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2025-03-04 06:45:00,040 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9537037037037037 [2025-03-04 06:45:00,040 INFO L175 Difference]: Start difference. First operand has 94 places, 114 transitions, 555 flow. Second operand 3 states and 206 transitions. [2025-03-04 06:45:00,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 67 transitions, 219 flow [2025-03-04 06:45:00,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 67 transitions, 159 flow, removed 10 selfloop flow, removed 20 redundant places. [2025-03-04 06:45:00,042 INFO L231 Difference]: Finished difference. Result has 74 places, 0 transitions, 0 flow [2025-03-04 06:45:00,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=74, PETRI_TRANSITIONS=0} [2025-03-04 06:45:00,044 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, -1 predicate places. [2025-03-04 06:45:00,044 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 0 transitions, 0 flow [2025-03-04 06:45:00,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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 06:45:00,047 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2025-03-04 06:45:00,047 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2025-03-04 06:45:00,047 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2025-03-04 06:45:00,047 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2025-03-04 06:45:00,048 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2025-03-04 06:45:00,048 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2025-03-04 06:45:00,048 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2025-03-04 06:45:00,048 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2025-03-04 06:45:00,048 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2025-03-04 06:45:00,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 06:45:00,048 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-04 06:45:00,053 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 06:45:00,053 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 06:45:00,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 06:45:00 BasicIcfg [2025-03-04 06:45:00,057 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 06:45:00,058 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 06:45:00,058 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 06:45:00,058 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 06:45:00,058 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:44:58" (3/4) ... [2025-03-04 06:45:00,060 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 06:45:00,062 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-04 06:45:00,064 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-04 06:45:00,064 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 06:45:00,064 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 06:45:00,116 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 06:45:00,116 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 06:45:00,116 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 06:45:00,117 INFO L158 Benchmark]: Toolchain (without parser) took 2478.53ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 79.1MB in the end (delta: 25.3MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2025-03-04 06:45:00,117 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:45:00,117 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.91ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 86.0MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 06:45:00,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.36ms. Allocated memory is still 142.6MB. Free memory was 86.0MB in the beginning and 83.8MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 06:45:00,118 INFO L158 Benchmark]: Boogie Preprocessor took 17.61ms. Allocated memory is still 142.6MB. Free memory was 83.8MB in the beginning and 82.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:45:00,118 INFO L158 Benchmark]: IcfgBuilder took 280.13ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 69.0MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 06:45:00,118 INFO L158 Benchmark]: TraceAbstraction took 1754.28ms. Allocated memory is still 142.6MB. Free memory was 68.0MB in the beginning and 84.5MB in the end (delta: -16.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:45:00,118 INFO L158 Benchmark]: Witness Printer took 58.55ms. Allocated memory is still 142.6MB. Free memory was 84.5MB in the beginning and 79.1MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 06:45:00,119 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.91ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 86.0MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.36ms. Allocated memory is still 142.6MB. Free memory was 86.0MB in the beginning and 83.8MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.61ms. Allocated memory is still 142.6MB. Free memory was 83.8MB in the beginning and 82.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 280.13ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 69.0MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1754.28ms. Allocated memory is still 142.6MB. Free memory was 68.0MB in the beginning and 84.5MB in the end (delta: -16.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 58.55ms. Allocated memory is still 142.6MB. Free memory was 84.5MB in the beginning and 79.1MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 684]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 684]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 94 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 309 IncrementalHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 12 mSDtfsCounter, 309 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=555occurred in iteration=5, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 211 NumberOfCodeBlocks, 211 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 205 ConstructedInterpolants, 0 QuantifiedInterpolants, 409 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-04 06:45:00,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE