./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/05_tas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/05_tas.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 1ee4025da2c93fbd4be930880192a9e0c94d8979f3d9117e228b55f99542c3b0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 08:58:05,828 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 08:58:05,905 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 08:58:05,912 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 08:58:05,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 08:58:05,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 08:58:05,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 08:58:05,949 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 08:58:05,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 08:58:05,949 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 08:58:05,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 08:58:05,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 08:58:05,950 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 08:58:05,951 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 08:58:05,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 08:58:05,951 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 08:58:05,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 08:58:05,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 08:58:05,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 08:58:05,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 08:58:05,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 08:58:05,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 08:58:05,952 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 08:58:05,952 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 08:58:05,952 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 08:58:05,952 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 08:58:05,952 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 08:58:05,952 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 08:58:05,952 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 08:58:05,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 08:58:05,952 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 08:58:05,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 08:58:05,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 08:58:05,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 08:58:05,953 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 08:58:05,953 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 08:58:05,953 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 08:58:05,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 08:58:05,953 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 08:58:05,953 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 08:58:05,953 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 08:58:05,953 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 08:58:05,953 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-jdk21/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 -> 1ee4025da2c93fbd4be930880192a9e0c94d8979f3d9117e228b55f99542c3b0 [2025-02-06 08:58:06,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 08:58:06,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 08:58:06,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 08:58:06,252 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 08:58:06,252 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 08:58:06,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/05_tas.i [2025-02-06 08:58:07,647 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/af4399add/37b135bbac36427fa5e409db23f4081e/FLAGfe78d8361 [2025-02-06 08:58:07,975 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 08:58:07,976 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/05_tas.i [2025-02-06 08:58:07,988 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/af4399add/37b135bbac36427fa5e409db23f4081e/FLAGfe78d8361 [2025-02-06 08:58:08,003 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/af4399add/37b135bbac36427fa5e409db23f4081e [2025-02-06 08:58:08,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 08:58:08,006 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 08:58:08,008 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 08:58:08,008 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 08:58:08,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 08:58:08,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 08:58:08" (1/1) ... [2025-02-06 08:58:08,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e1ad9a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:08, skipping insertion in model container [2025-02-06 08:58:08,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 08:58:08" (1/1) ... [2025-02-06 08:58:08,049 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 08:58:08,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 08:58:08,413 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 08:58:08,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 08:58:08,486 INFO L204 MainTranslator]: Completed translation [2025-02-06 08:58:08,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:08 WrapperNode [2025-02-06 08:58:08,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 08:58:08,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 08:58:08,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 08:58:08,490 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 08:58:08,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:08" (1/1) ... [2025-02-06 08:58:08,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:08" (1/1) ... [2025-02-06 08:58:08,549 INFO L138 Inliner]: procedures = 169, calls = 26, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 168 [2025-02-06 08:58:08,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 08:58:08,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 08:58:08,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 08:58:08,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 08:58:08,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:08" (1/1) ... [2025-02-06 08:58:08,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:08" (1/1) ... [2025-02-06 08:58:08,563 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:08" (1/1) ... [2025-02-06 08:58:08,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:08" (1/1) ... [2025-02-06 08:58:08,574 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:08" (1/1) ... [2025-02-06 08:58:08,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:08" (1/1) ... [2025-02-06 08:58:08,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:08" (1/1) ... [2025-02-06 08:58:08,584 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:08" (1/1) ... [2025-02-06 08:58:08,588 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 08:58:08,589 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 08:58:08,589 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 08:58:08,589 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 08:58:08,590 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:08" (1/1) ... [2025-02-06 08:58:08,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 08:58:08,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 08:58:08,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 08:58:08,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 08:58:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 08:58:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-06 08:58:08,652 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-06 08:58:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 08:58:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 08:58:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 08:58:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 08:58:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 08:58:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 08:58:08,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 08:58:08,653 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 08:58:08,781 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 08:58:08,782 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 08:58:09,193 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 08:58:09,193 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 08:58:09,335 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 08:58:09,337 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 08:58:09,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:58:09 BoogieIcfgContainer [2025-02-06 08:58:09,338 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 08:58:09,341 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 08:58:09,341 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 08:58:09,345 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 08:58:09,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 08:58:08" (1/3) ... [2025-02-06 08:58:09,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f6ff2dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 08:58:09, skipping insertion in model container [2025-02-06 08:58:09,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:08" (2/3) ... [2025-02-06 08:58:09,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f6ff2dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 08:58:09, skipping insertion in model container [2025-02-06 08:58:09,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:58:09" (3/3) ... [2025-02-06 08:58:09,350 INFO L128 eAbstractionObserver]: Analyzing ICFG 05_tas.i [2025-02-06 08:58:09,366 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 08:58:09,368 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 05_tas.i that has 2 procedures, 136 locations, 1 initial locations, 3 loop locations, and 16 error locations. [2025-02-06 08:58:09,370 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 08:58:09,489 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 08:58:09,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 146 transitions, 296 flow [2025-02-06 08:58:09,585 INFO L124 PetriNetUnfolderBase]: 10/153 cut-off events. [2025-02-06 08:58:09,589 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 08:58:09,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 153 events. 10/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 183 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 131. Up to 2 conditions per place. [2025-02-06 08:58:09,594 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 146 transitions, 296 flow [2025-02-06 08:58:09,601 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 146 transitions, 296 flow [2025-02-06 08:58:09,610 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:58:09,625 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;@25769aa3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:58:09,625 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2025-02-06 08:58:09,635 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:58:09,635 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2025-02-06 08:58:09,635 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 08:58:09,636 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:09,637 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:58:09,637 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-02-06 08:58:09,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:09,644 INFO L85 PathProgramCache]: Analyzing trace with hash 550591540, now seen corresponding path program 1 times [2025-02-06 08:58:09,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:09,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036232647] [2025-02-06 08:58:09,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:09,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:09,731 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 08:58:09,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 08:58:09,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:09,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:09,751 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 08:58:09,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 08:58:09,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 08:58:09,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:09,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:09,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 08:58:09,797 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 08:58:09,799 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2025-02-06 08:58:09,800 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2025-02-06 08:58:09,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2025-02-06 08:58:09,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2025-02-06 08:58:09,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2025-02-06 08:58:09,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2025-02-06 08:58:09,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2025-02-06 08:58:09,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2025-02-06 08:58:09,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2025-02-06 08:58:09,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2025-02-06 08:58:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2025-02-06 08:58:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2025-02-06 08:58:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2025-02-06 08:58:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2025-02-06 08:58:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2025-02-06 08:58:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2025-02-06 08:58:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2025-02-06 08:58:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2025-02-06 08:58:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2025-02-06 08:58:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2025-02-06 08:58:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2025-02-06 08:58:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2025-02-06 08:58:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2025-02-06 08:58:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2025-02-06 08:58:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2025-02-06 08:58:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2025-02-06 08:58:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2025-02-06 08:58:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2025-02-06 08:58:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2025-02-06 08:58:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2025-02-06 08:58:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2025-02-06 08:58:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2025-02-06 08:58:09,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2025-02-06 08:58:09,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 08:58:09,808 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-06 08:58:09,816 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 08:58:09,816 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 08:58:09,917 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 08:58:09,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 269 transitions, 548 flow [2025-02-06 08:58:10,067 INFO L124 PetriNetUnfolderBase]: 20/285 cut-off events. [2025-02-06 08:58:10,067 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 08:58:10,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 285 events. 20/285 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 735 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 253. Up to 3 conditions per place. [2025-02-06 08:58:10,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 254 places, 269 transitions, 548 flow [2025-02-06 08:58:10,081 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 269 transitions, 548 flow [2025-02-06 08:58:10,084 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:58:10,087 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;@25769aa3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:58:10,087 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2025-02-06 08:58:10,097 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:58:10,100 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2025-02-06 08:58:10,100 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 08:58:10,100 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:10,100 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] [2025-02-06 08:58:10,101 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-02-06 08:58:10,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:10,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1778934975, now seen corresponding path program 1 times [2025-02-06 08:58:10,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:10,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304770926] [2025-02-06 08:58:10,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:10,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:10,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 08:58:10,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 08:58:10,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:10,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:10,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:10,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:10,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304770926] [2025-02-06 08:58:10,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304770926] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:10,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:10,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 08:58:10,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863580156] [2025-02-06 08:58:10,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:10,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 08:58:10,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:10,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 08:58:10,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 08:58:10,529 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 269 [2025-02-06 08:58:10,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 269 transitions, 548 flow. Second operand has 2 states, 2 states have (on average 229.0) internal successors, (458), 2 states have internal predecessors, (458), 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) [2025-02-06 08:58:10,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:10,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 269 [2025-02-06 08:58:10,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:10,743 INFO L124 PetriNetUnfolderBase]: 15/432 cut-off events. [2025-02-06 08:58:10,743 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-06 08:58:10,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 432 events. 15/432 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1520 event pairs, 2 based on Foata normal form. 43/414 useless extension candidates. Maximal degree in co-relation 322. Up to 16 conditions per place. [2025-02-06 08:58:10,752 INFO L140 encePairwiseOnDemand]: 240/269 looper letters, 6 selfloop transitions, 0 changer transitions 0/221 dead transitions. [2025-02-06 08:58:10,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 221 transitions, 464 flow [2025-02-06 08:58:10,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 08:58:10,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 08:58:10,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 491 transitions. [2025-02-06 08:58:10,773 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.912639405204461 [2025-02-06 08:58:10,775 INFO L175 Difference]: Start difference. First operand has 254 places, 269 transitions, 548 flow. Second operand 2 states and 491 transitions. [2025-02-06 08:58:10,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 221 transitions, 464 flow [2025-02-06 08:58:10,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 221 transitions, 464 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:10,785 INFO L231 Difference]: Finished difference. Result has 221 places, 221 transitions, 452 flow [2025-02-06 08:58:10,788 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=452, PETRI_PLACES=221, PETRI_TRANSITIONS=221} [2025-02-06 08:58:10,792 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, -33 predicate places. [2025-02-06 08:58:10,792 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 221 transitions, 452 flow [2025-02-06 08:58:10,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 229.0) internal successors, (458), 2 states have internal predecessors, (458), 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) [2025-02-06 08:58:10,793 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:10,793 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:58:10,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 08:58:10,794 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-02-06 08:58:10,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:10,794 INFO L85 PathProgramCache]: Analyzing trace with hash 29464017, now seen corresponding path program 1 times [2025-02-06 08:58:10,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:10,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295790454] [2025-02-06 08:58:10,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:10,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:10,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-06 08:58:10,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-06 08:58:10,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:10,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:10,812 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 08:58:10,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-06 08:58:10,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-06 08:58:10,823 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:10,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:10,835 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 08:58:10,836 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 08:58:10,836 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2025-02-06 08:58:10,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2025-02-06 08:58:10,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2025-02-06 08:58:10,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2025-02-06 08:58:10,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2025-02-06 08:58:10,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2025-02-06 08:58:10,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2025-02-06 08:58:10,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2025-02-06 08:58:10,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2025-02-06 08:58:10,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2025-02-06 08:58:10,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2025-02-06 08:58:10,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2025-02-06 08:58:10,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2025-02-06 08:58:10,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2025-02-06 08:58:10,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2025-02-06 08:58:10,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2025-02-06 08:58:10,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2025-02-06 08:58:10,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2025-02-06 08:58:10,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2025-02-06 08:58:10,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2025-02-06 08:58:10,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2025-02-06 08:58:10,841 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2025-02-06 08:58:10,841 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2025-02-06 08:58:10,841 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2025-02-06 08:58:10,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2025-02-06 08:58:10,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2025-02-06 08:58:10,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2025-02-06 08:58:10,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2025-02-06 08:58:10,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2025-02-06 08:58:10,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2025-02-06 08:58:10,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2025-02-06 08:58:10,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2025-02-06 08:58:10,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2025-02-06 08:58:10,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 08:58:10,843 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 08:58:10,844 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 08:58:10,845 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-06 08:58:10,965 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 08:58:10,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 392 transitions, 802 flow [2025-02-06 08:58:11,112 INFO L124 PetriNetUnfolderBase]: 30/417 cut-off events. [2025-02-06 08:58:11,113 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-06 08:58:11,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 417 events. 30/417 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1443 event pairs, 0 based on Foata normal form. 0/335 useless extension candidates. Maximal degree in co-relation 375. Up to 4 conditions per place. [2025-02-06 08:58:11,118 INFO L82 GeneralOperation]: Start removeDead. Operand has 369 places, 392 transitions, 802 flow [2025-02-06 08:58:11,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 392 transitions, 802 flow [2025-02-06 08:58:11,127 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:58:11,128 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;@25769aa3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:58:11,128 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2025-02-06 08:58:11,132 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:58:11,133 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2025-02-06 08:58:11,134 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 08:58:11,134 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:11,134 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] [2025-02-06 08:58:11,134 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-02-06 08:58:11,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:11,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1518315585, now seen corresponding path program 1 times [2025-02-06 08:58:11,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:11,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754789570] [2025-02-06 08:58:11,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:11,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:11,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 08:58:11,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 08:58:11,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:11,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:11,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:11,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:11,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754789570] [2025-02-06 08:58:11,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754789570] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:11,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:11,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 08:58:11,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001410254] [2025-02-06 08:58:11,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:11,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 08:58:11,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:11,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 08:58:11,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 08:58:11,321 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 392 [2025-02-06 08:58:11,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 392 transitions, 802 flow. Second operand has 2 states, 2 states have (on average 332.0) internal successors, (664), 2 states have internal predecessors, (664), 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) [2025-02-06 08:58:11,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:11,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 392 [2025-02-06 08:58:11,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:11,727 INFO L124 PetriNetUnfolderBase]: 51/1153 cut-off events. [2025-02-06 08:58:11,728 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2025-02-06 08:58:11,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1233 conditions, 1153 events. 51/1153 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 7144 event pairs, 10 based on Foata normal form. 123/1104 useless extension candidates. Maximal degree in co-relation 759. Up to 52 conditions per place. [2025-02-06 08:58:11,762 INFO L140 encePairwiseOnDemand]: 349/392 looper letters, 9 selfloop transitions, 0 changer transitions 0/322 dead transitions. [2025-02-06 08:58:11,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 322 transitions, 680 flow [2025-02-06 08:58:11,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 08:58:11,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 08:58:11,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 714 transitions. [2025-02-06 08:58:11,771 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9107142857142857 [2025-02-06 08:58:11,772 INFO L175 Difference]: Start difference. First operand has 369 places, 392 transitions, 802 flow. Second operand 2 states and 714 transitions. [2025-02-06 08:58:11,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 322 transitions, 680 flow [2025-02-06 08:58:11,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 322 transitions, 678 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:11,781 INFO L231 Difference]: Finished difference. Result has 321 places, 322 transitions, 660 flow [2025-02-06 08:58:11,783 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=660, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=660, PETRI_PLACES=321, PETRI_TRANSITIONS=322} [2025-02-06 08:58:11,784 INFO L279 CegarLoopForPetriNet]: 369 programPoint places, -48 predicate places. [2025-02-06 08:58:11,784 INFO L471 AbstractCegarLoop]: Abstraction has has 321 places, 322 transitions, 660 flow [2025-02-06 08:58:11,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 332.0) internal successors, (664), 2 states have internal predecessors, (664), 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) [2025-02-06 08:58:11,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:11,785 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] [2025-02-06 08:58:11,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 08:58:11,786 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-02-06 08:58:11,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:11,787 INFO L85 PathProgramCache]: Analyzing trace with hash 816705372, now seen corresponding path program 1 times [2025-02-06 08:58:11,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:11,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642663733] [2025-02-06 08:58:11,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:11,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:11,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 08:58:11,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 08:58:11,817 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:11,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:12,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:12,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:12,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642663733] [2025-02-06 08:58:12,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642663733] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:12,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:12,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:58:12,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753268700] [2025-02-06 08:58:12,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:12,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:58:12,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:12,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:58:12,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:58:12,933 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 392 [2025-02-06 08:58:12,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 322 transitions, 660 flow. Second operand has 6 states, 6 states have (on average 304.5) internal successors, (1827), 6 states have internal predecessors, (1827), 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) [2025-02-06 08:58:12,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:12,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 392 [2025-02-06 08:58:12,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:16,232 INFO L124 PetriNetUnfolderBase]: 3549/14083 cut-off events. [2025-02-06 08:58:16,232 INFO L125 PetriNetUnfolderBase]: For 649/649 co-relation queries the response was YES. [2025-02-06 08:58:16,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19632 conditions, 14083 events. 3549/14083 cut-off events. For 649/649 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 138457 event pairs, 1092 based on Foata normal form. 0/12095 useless extension candidates. Maximal degree in co-relation 19626. Up to 4142 conditions per place. [2025-02-06 08:58:16,425 INFO L140 encePairwiseOnDemand]: 366/392 looper letters, 47 selfloop transitions, 60 changer transitions 0/392 dead transitions. [2025-02-06 08:58:16,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 392 transitions, 1054 flow [2025-02-06 08:58:16,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:58:16,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:58:16,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1927 transitions. [2025-02-06 08:58:16,432 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8193027210884354 [2025-02-06 08:58:16,432 INFO L175 Difference]: Start difference. First operand has 321 places, 322 transitions, 660 flow. Second operand 6 states and 1927 transitions. [2025-02-06 08:58:16,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 392 transitions, 1054 flow [2025-02-06 08:58:16,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 392 transitions, 1054 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:16,443 INFO L231 Difference]: Finished difference. Result has 331 places, 381 transitions, 1068 flow [2025-02-06 08:58:16,444 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=660, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1068, PETRI_PLACES=331, PETRI_TRANSITIONS=381} [2025-02-06 08:58:16,445 INFO L279 CegarLoopForPetriNet]: 369 programPoint places, -38 predicate places. [2025-02-06 08:58:16,445 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 381 transitions, 1068 flow [2025-02-06 08:58:16,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 304.5) internal successors, (1827), 6 states have internal predecessors, (1827), 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) [2025-02-06 08:58:16,446 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:16,446 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:58:16,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 08:58:16,447 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-02-06 08:58:16,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:16,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2085243518, now seen corresponding path program 1 times [2025-02-06 08:58:16,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:16,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695883929] [2025-02-06 08:58:16,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:16,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:16,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-02-06 08:58:16,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-02-06 08:58:16,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:16,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:16,460 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 08:58:16,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-02-06 08:58:16,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-02-06 08:58:16,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:16,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:16,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 08:58:16,476 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 08:58:16,476 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2025-02-06 08:58:16,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2025-02-06 08:58:16,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2025-02-06 08:58:16,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2025-02-06 08:58:16,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2025-02-06 08:58:16,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2025-02-06 08:58:16,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2025-02-06 08:58:16,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2025-02-06 08:58:16,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2025-02-06 08:58:16,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2025-02-06 08:58:16,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2025-02-06 08:58:16,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2025-02-06 08:58:16,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2025-02-06 08:58:16,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2025-02-06 08:58:16,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2025-02-06 08:58:16,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2025-02-06 08:58:16,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2025-02-06 08:58:16,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2025-02-06 08:58:16,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2025-02-06 08:58:16,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2025-02-06 08:58:16,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2025-02-06 08:58:16,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2025-02-06 08:58:16,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2025-02-06 08:58:16,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2025-02-06 08:58:16,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2025-02-06 08:58:16,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2025-02-06 08:58:16,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2025-02-06 08:58:16,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2025-02-06 08:58:16,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2025-02-06 08:58:16,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2025-02-06 08:58:16,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2025-02-06 08:58:16,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2025-02-06 08:58:16,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2025-02-06 08:58:16,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2025-02-06 08:58:16,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2025-02-06 08:58:16,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2025-02-06 08:58:16,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2025-02-06 08:58:16,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2025-02-06 08:58:16,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2025-02-06 08:58:16,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2025-02-06 08:58:16,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2025-02-06 08:58:16,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2025-02-06 08:58:16,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2025-02-06 08:58:16,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2025-02-06 08:58:16,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2025-02-06 08:58:16,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2025-02-06 08:58:16,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2025-02-06 08:58:16,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2025-02-06 08:58:16,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2025-02-06 08:58:16,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 08:58:16,484 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-06 08:58:16,484 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 08:58:16,484 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-02-06 08:58:16,634 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 08:58:16,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 484 places, 515 transitions, 1058 flow [2025-02-06 08:58:16,757 INFO L124 PetriNetUnfolderBase]: 40/549 cut-off events. [2025-02-06 08:58:16,757 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-06 08:58:16,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 549 events. 40/549 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2243 event pairs, 0 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 497. Up to 5 conditions per place. [2025-02-06 08:58:16,769 INFO L82 GeneralOperation]: Start removeDead. Operand has 484 places, 515 transitions, 1058 flow [2025-02-06 08:58:16,779 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 484 places, 515 transitions, 1058 flow [2025-02-06 08:58:16,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:58:16,781 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;@25769aa3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:58:16,781 INFO L334 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2025-02-06 08:58:16,784 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:58:16,785 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2025-02-06 08:58:16,785 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 08:58:16,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:16,785 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] [2025-02-06 08:58:16,785 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-02-06 08:58:16,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:16,786 INFO L85 PathProgramCache]: Analyzing trace with hash 2015169758, now seen corresponding path program 1 times [2025-02-06 08:58:16,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:16,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223858176] [2025-02-06 08:58:16,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:16,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:16,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 08:58:16,800 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 08:58:16,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:16,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:16,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:16,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:16,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223858176] [2025-02-06 08:58:16,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223858176] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:16,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:16,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 08:58:16,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046528976] [2025-02-06 08:58:16,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:16,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 08:58:16,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:16,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 08:58:16,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 08:58:16,887 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 515 [2025-02-06 08:58:16,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 515 transitions, 1058 flow. Second operand has 2 states, 2 states have (on average 435.0) internal successors, (870), 2 states have internal predecessors, (870), 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) [2025-02-06 08:58:16,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:16,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 515 [2025-02-06 08:58:16,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:17,657 INFO L124 PetriNetUnfolderBase]: 147/2710 cut-off events. [2025-02-06 08:58:17,658 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2025-02-06 08:58:17,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2927 conditions, 2710 events. 147/2710 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 22864 event pairs, 34 based on Foata normal form. 307/2599 useless extension candidates. Maximal degree in co-relation 1652. Up to 148 conditions per place. [2025-02-06 08:58:17,739 INFO L140 encePairwiseOnDemand]: 458/515 looper letters, 12 selfloop transitions, 0 changer transitions 0/423 dead transitions. [2025-02-06 08:58:17,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 423 transitions, 898 flow [2025-02-06 08:58:17,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 08:58:17,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 08:58:17,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 937 transitions. [2025-02-06 08:58:17,743 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9097087378640777 [2025-02-06 08:58:17,744 INFO L175 Difference]: Start difference. First operand has 484 places, 515 transitions, 1058 flow. Second operand 2 states and 937 transitions. [2025-02-06 08:58:17,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 423 transitions, 898 flow [2025-02-06 08:58:17,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 423 transitions, 892 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:17,751 INFO L231 Difference]: Finished difference. Result has 421 places, 423 transitions, 868 flow [2025-02-06 08:58:17,752 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=868, PETRI_PLACES=421, PETRI_TRANSITIONS=423} [2025-02-06 08:58:17,753 INFO L279 CegarLoopForPetriNet]: 484 programPoint places, -63 predicate places. [2025-02-06 08:58:17,753 INFO L471 AbstractCegarLoop]: Abstraction has has 421 places, 423 transitions, 868 flow [2025-02-06 08:58:17,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 435.0) internal successors, (870), 2 states have internal predecessors, (870), 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) [2025-02-06 08:58:17,754 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:17,754 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] [2025-02-06 08:58:17,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 08:58:17,755 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-02-06 08:58:17,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:17,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1490241604, now seen corresponding path program 1 times [2025-02-06 08:58:17,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:17,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941925119] [2025-02-06 08:58:17,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:17,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:17,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 08:58:17,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 08:58:17,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:17,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:18,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:18,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:18,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941925119] [2025-02-06 08:58:18,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941925119] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:18,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:18,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:58:18,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856293991] [2025-02-06 08:58:18,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:18,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:58:18,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:18,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:58:18,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:58:18,925 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 515 [2025-02-06 08:58:18,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 423 transitions, 868 flow. Second operand has 6 states, 6 states have (on average 403.5) internal successors, (2421), 6 states have internal predecessors, (2421), 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) [2025-02-06 08:58:18,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:18,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 515 [2025-02-06 08:58:18,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:34,602 INFO L124 PetriNetUnfolderBase]: 32110/89001 cut-off events. [2025-02-06 08:58:34,602 INFO L125 PetriNetUnfolderBase]: For 4387/4387 co-relation queries the response was YES. [2025-02-06 08:58:35,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133921 conditions, 89001 events. 32110/89001 cut-off events. For 4387/4387 co-relation queries the response was YES. Maximal size of possible extension queue 1422. Compared 1040354 event pairs, 10902 based on Foata normal form. 0/77251 useless extension candidates. Maximal degree in co-relation 133914. Up to 35862 conditions per place. [2025-02-06 08:58:36,425 INFO L140 encePairwiseOnDemand]: 483/515 looper letters, 58 selfloop transitions, 84 changer transitions 0/521 dead transitions. [2025-02-06 08:58:36,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 521 transitions, 1408 flow [2025-02-06 08:58:36,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:58:36,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:58:36,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2556 transitions. [2025-02-06 08:58:36,431 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8271844660194175 [2025-02-06 08:58:36,432 INFO L175 Difference]: Start difference. First operand has 421 places, 423 transitions, 868 flow. Second operand 6 states and 2556 transitions. [2025-02-06 08:58:36,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 521 transitions, 1408 flow [2025-02-06 08:58:36,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 521 transitions, 1408 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:36,443 INFO L231 Difference]: Finished difference. Result has 431 places, 506 transitions, 1432 flow [2025-02-06 08:58:36,444 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1432, PETRI_PLACES=431, PETRI_TRANSITIONS=506} [2025-02-06 08:58:36,446 INFO L279 CegarLoopForPetriNet]: 484 programPoint places, -53 predicate places. [2025-02-06 08:58:36,447 INFO L471 AbstractCegarLoop]: Abstraction has has 431 places, 506 transitions, 1432 flow [2025-02-06 08:58:36,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 403.5) internal successors, (2421), 6 states have internal predecessors, (2421), 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) [2025-02-06 08:58:36,449 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:36,449 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2025-02-06 08:58:36,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 08:58:36,450 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-02-06 08:58:36,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:36,450 INFO L85 PathProgramCache]: Analyzing trace with hash 2138896102, now seen corresponding path program 1 times [2025-02-06 08:58:36,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:36,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970732552] [2025-02-06 08:58:36,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:36,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:36,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 08:58:36,470 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 08:58:36,470 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:36,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:36,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:36,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:36,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970732552] [2025-02-06 08:58:36,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970732552] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:36,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:36,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:58:36,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599233981] [2025-02-06 08:58:36,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:36,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:58:36,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:36,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:58:36,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:58:37,443 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 515 [2025-02-06 08:58:37,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 506 transitions, 1432 flow. Second operand has 6 states, 6 states have (on average 403.6666666666667) internal successors, (2422), 6 states have internal predecessors, (2422), 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) [2025-02-06 08:58:37,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:37,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 515 [2025-02-06 08:58:37,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand