./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-deagle/airline-15.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-deagle/airline-15.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 c250d04a54594f141e4a6230ba64a939d316d8b15028517201aca3da084476d7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:32:55,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:32:55,525 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:32:55,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:32:55,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:32:55,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:32:55,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:32:55,558 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:32:55,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:32:55,559 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:32:55,559 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:32:55,560 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:32:55,560 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:32:55,560 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:32:55,560 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:32:55,560 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:32:55,560 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:32:55,561 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:32:55,561 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:32:55,561 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:32:55,561 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:32:55,561 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:32:55,561 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:32:55,561 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:32:55,561 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:32:55,561 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:32:55,562 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:32:55,562 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:32:55,562 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:32:55,562 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:32:55,562 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:32:55,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:32:55,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:32:55,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:32:55,562 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:32:55,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:32:55,562 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:32:55,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:32:55,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:32:55,563 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:32:55,563 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:32:55,563 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:32:55,563 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 -> c250d04a54594f141e4a6230ba64a939d316d8b15028517201aca3da084476d7 [2025-02-06 09:32:55,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:32:55,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:32:55,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:32:55,878 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:32:55,879 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:32:55,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/airline-15.i [2025-02-06 09:32:57,233 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7d6fe5a0d/1bc2cde133d941e28758df52970a5bf3/FLAG3d52e304e [2025-02-06 09:32:57,527 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:32:57,530 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-deagle/airline-15.i [2025-02-06 09:32:57,555 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7d6fe5a0d/1bc2cde133d941e28758df52970a5bf3/FLAG3d52e304e [2025-02-06 09:32:57,576 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7d6fe5a0d/1bc2cde133d941e28758df52970a5bf3 [2025-02-06 09:32:57,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:32:57,581 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:32:57,583 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:32:57,583 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:32:57,587 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:32:57,588 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:32:57" (1/1) ... [2025-02-06 09:32:57,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240f8d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:32:57, skipping insertion in model container [2025-02-06 09:32:57,590 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:32:57" (1/1) ... [2025-02-06 09:32:57,628 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:32:57,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:32:57,932 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:32:57,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:32:58,015 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:32:58,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:32:58 WrapperNode [2025-02-06 09:32:58,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:32:58,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:32:58,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:32:58,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:32:58,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:32:58" (1/1) ... [2025-02-06 09:32:58,044 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:32:58" (1/1) ... [2025-02-06 09:32:58,066 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2025-02-06 09:32:58,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:32:58,067 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:32:58,067 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:32:58,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:32:58,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:32:58" (1/1) ... [2025-02-06 09:32:58,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:32:58" (1/1) ... [2025-02-06 09:32:58,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:32:58" (1/1) ... [2025-02-06 09:32:58,080 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:32:58" (1/1) ... [2025-02-06 09:32:58,088 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:32:58" (1/1) ... [2025-02-06 09:32:58,092 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:32:58" (1/1) ... [2025-02-06 09:32:58,098 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:32:58" (1/1) ... [2025-02-06 09:32:58,099 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:32:58" (1/1) ... [2025-02-06 09:32:58,100 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:32:58,105 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:32:58,105 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:32:58,105 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:32:58,106 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:32:58" (1/1) ... [2025-02-06 09:32:58,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:32:58,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:32:58,140 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 09:32:58,143 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 09:32:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:32:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:32:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 09:32:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:32:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:32:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2025-02-06 09:32:58,166 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2025-02-06 09:32:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:32:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:32:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 09:32:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:32:58,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:32:58,168 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 09:32:58,298 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:32:58,300 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:32:58,524 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L736: havoc main_~#salethreads~0#1.base, main_~#salethreads~0#1.offset; [2025-02-06 09:32:58,525 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L736-1: SUMMARY for call ULTIMATE.dealloc(main_~#salethreads~0#1.base, main_~#salethreads~0#1.offset); srcloc: null [2025-02-06 09:32:58,526 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:32:58,526 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:32:58,580 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:32:58,582 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:32:58,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:32:58 BoogieIcfgContainer [2025-02-06 09:32:58,583 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:32:58,585 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:32:58,585 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:32:58,589 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:32:58,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:32:57" (1/3) ... [2025-02-06 09:32:58,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a247085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:32:58, skipping insertion in model container [2025-02-06 09:32:58,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:32:58" (2/3) ... [2025-02-06 09:32:58,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a247085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:32:58, skipping insertion in model container [2025-02-06 09:32:58,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:32:58" (3/3) ... [2025-02-06 09:32:58,593 INFO L128 eAbstractionObserver]: Analyzing ICFG airline-15.i [2025-02-06 09:32:58,606 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:32:58,607 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG airline-15.i that has 2 procedures, 92 locations, 1 initial locations, 2 loop locations, and 10 error locations. [2025-02-06 09:32:58,608 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:32:58,681 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 09:32:58,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 97 transitions, 201 flow [2025-02-06 09:32:58,780 INFO L124 PetriNetUnfolderBase]: 7/140 cut-off events. [2025-02-06 09:32:58,782 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:32:58,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 140 events. 7/140 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 297 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 68. Up to 4 conditions per place. [2025-02-06 09:32:58,789 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 97 transitions, 201 flow [2025-02-06 09:32:58,793 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 97 transitions, 201 flow [2025-02-06 09:32:58,799 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:32:58,817 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;@24cb9044, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:32:58,817 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-02-06 09:32:58,825 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:32:58,825 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-02-06 09:32:58,825 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:32:58,825 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:32:58,826 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:32:58,826 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-02-06 09:32:58,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:32:58,832 INFO L85 PathProgramCache]: Analyzing trace with hash 704519650, now seen corresponding path program 1 times [2025-02-06 09:32:58,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:32:58,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437565234] [2025-02-06 09:32:58,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:32:58,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:32:58,915 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 09:32:58,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 09:32:58,925 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:32:58,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:32:58,979 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 09:32:58,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:32:58,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437565234] [2025-02-06 09:32:58,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437565234] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:32:58,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:32:58,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:32:58,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404007133] [2025-02-06 09:32:58,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:32:58,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:32:58,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:32:59,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:32:59,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:32:59,011 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 97 [2025-02-06 09:32:59,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 97 transitions, 201 flow. Second operand has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 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 09:32:59,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:32:59,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 97 [2025-02-06 09:32:59,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:32:59,078 INFO L124 PetriNetUnfolderBase]: 3/127 cut-off events. [2025-02-06 09:32:59,078 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2025-02-06 09:32:59,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 127 events. 3/127 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 261 event pairs, 0 based on Foata normal form. 4/115 useless extension candidates. Maximal degree in co-relation 64. Up to 8 conditions per place. [2025-02-06 09:32:59,080 INFO L140 encePairwiseOnDemand]: 90/97 looper letters, 7 selfloop transitions, 0 changer transitions 0/88 dead transitions. [2025-02-06 09:32:59,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 88 transitions, 197 flow [2025-02-06 09:32:59,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:32:59,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:32:59,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 178 transitions. [2025-02-06 09:32:59,105 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9175257731958762 [2025-02-06 09:32:59,107 INFO L175 Difference]: Start difference. First operand has 95 places, 97 transitions, 201 flow. Second operand 2 states and 178 transitions. [2025-02-06 09:32:59,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 88 transitions, 197 flow [2025-02-06 09:32:59,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 88 transitions, 197 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:32:59,113 INFO L231 Difference]: Finished difference. Result has 89 places, 88 transitions, 183 flow [2025-02-06 09:32:59,118 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=183, PETRI_PLACES=89, PETRI_TRANSITIONS=88} [2025-02-06 09:32:59,122 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, -6 predicate places. [2025-02-06 09:32:59,122 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 88 transitions, 183 flow [2025-02-06 09:32:59,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 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 09:32:59,123 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:32:59,123 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] [2025-02-06 09:32:59,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:32:59,123 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-02-06 09:32:59,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:32:59,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1997247111, now seen corresponding path program 1 times [2025-02-06 09:32:59,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:32:59,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496192128] [2025-02-06 09:32:59,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:32:59,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:32:59,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 09:32:59,154 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 09:32:59,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:32:59,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:32:59,238 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 09:32:59,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:32:59,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496192128] [2025-02-06 09:32:59,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496192128] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:32:59,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:32:59,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:32:59,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347504387] [2025-02-06 09:32:59,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:32:59,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:32:59,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:32:59,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:32:59,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:32:59,268 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 97 [2025-02-06 09:32:59,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 88 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:32:59,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:32:59,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 97 [2025-02-06 09:32:59,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:32:59,319 INFO L124 PetriNetUnfolderBase]: 10/174 cut-off events. [2025-02-06 09:32:59,319 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 09:32:59,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 174 events. 10/174 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 459 event pairs, 0 based on Foata normal form. 1/152 useless extension candidates. Maximal degree in co-relation 203. Up to 23 conditions per place. [2025-02-06 09:32:59,325 INFO L140 encePairwiseOnDemand]: 94/97 looper letters, 13 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2025-02-06 09:32:59,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 90 transitions, 217 flow [2025-02-06 09:32:59,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:32:59,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:32:59,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2025-02-06 09:32:59,327 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8384879725085911 [2025-02-06 09:32:59,327 INFO L175 Difference]: Start difference. First operand has 89 places, 88 transitions, 183 flow. Second operand 3 states and 244 transitions. [2025-02-06 09:32:59,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 90 transitions, 217 flow [2025-02-06 09:32:59,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 90 transitions, 217 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:32:59,331 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 191 flow [2025-02-06 09:32:59,331 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2025-02-06 09:32:59,332 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, -3 predicate places. [2025-02-06 09:32:59,332 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 191 flow [2025-02-06 09:32:59,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:32:59,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:32:59,333 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:32:59,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:32:59,333 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-02-06 09:32:59,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:32:59,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1443432560, now seen corresponding path program 1 times [2025-02-06 09:32:59,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:32:59,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961792658] [2025-02-06 09:32:59,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:32:59,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:32:59,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-06 09:32:59,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-06 09:32:59,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:32:59,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:32:59,800 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 09:32:59,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:32:59,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961792658] [2025-02-06 09:32:59,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961792658] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:32:59,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:32:59,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:32:59,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569658408] [2025-02-06 09:32:59,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:32:59,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:32:59,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:32:59,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:32:59,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:32:59,937 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 97 [2025-02-06 09:32:59,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 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 09:32:59,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:32:59,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 97 [2025-02-06 09:32:59,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:33:00,024 INFO L124 PetriNetUnfolderBase]: 33/198 cut-off events. [2025-02-06 09:33:00,024 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-02-06 09:33:00,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 198 events. 33/198 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 656 event pairs, 9 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 292. Up to 56 conditions per place. [2025-02-06 09:33:00,026 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 28 selfloop transitions, 5 changer transitions 0/95 dead transitions. [2025-02-06 09:33:00,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 95 transitions, 271 flow [2025-02-06 09:33:00,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:33:00,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:33:00,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 412 transitions. [2025-02-06 09:33:00,030 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7079037800687286 [2025-02-06 09:33:00,030 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 191 flow. Second operand 6 states and 412 transitions. [2025-02-06 09:33:00,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 95 transitions, 271 flow [2025-02-06 09:33:00,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 95 transitions, 267 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:33:00,036 INFO L231 Difference]: Finished difference. Result has 94 places, 87 transitions, 195 flow [2025-02-06 09:33:00,036 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=195, PETRI_PLACES=94, PETRI_TRANSITIONS=87} [2025-02-06 09:33:00,037 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, -1 predicate places. [2025-02-06 09:33:00,037 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 87 transitions, 195 flow [2025-02-06 09:33:00,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 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 09:33:00,038 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:33:00,038 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:33:00,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:33:00,039 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-02-06 09:33:00,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:33:00,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1595949315, now seen corresponding path program 1 times [2025-02-06 09:33:00,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:33:00,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792830107] [2025-02-06 09:33:00,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:33:00,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:33:00,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 09:33:00,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 09:33:00,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:33:00,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:33:00,089 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 09:33:00,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:33:00,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792830107] [2025-02-06 09:33:00,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792830107] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:33:00,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:33:00,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:33:00,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127898280] [2025-02-06 09:33:00,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:33:00,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:33:00,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:33:00,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:33:00,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:33:00,095 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 97 [2025-02-06 09:33:00,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 87 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 09:33:00,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:33:00,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 97 [2025-02-06 09:33:00,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:33:00,128 INFO L124 PetriNetUnfolderBase]: 1/154 cut-off events. [2025-02-06 09:33:00,129 INFO L125 PetriNetUnfolderBase]: For 10/18 co-relation queries the response was YES. [2025-02-06 09:33:00,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 154 events. 1/154 cut-off events. For 10/18 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 301 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 179. Up to 7 conditions per place. [2025-02-06 09:33:00,130 INFO L140 encePairwiseOnDemand]: 94/97 looper letters, 8 selfloop transitions, 2 changer transitions 0/87 dead transitions. [2025-02-06 09:33:00,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 87 transitions, 218 flow [2025-02-06 09:33:00,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:33:00,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:33:00,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2025-02-06 09:33:00,133 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.852233676975945 [2025-02-06 09:33:00,133 INFO L175 Difference]: Start difference. First operand has 94 places, 87 transitions, 195 flow. Second operand 3 states and 248 transitions. [2025-02-06 09:33:00,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 87 transitions, 218 flow [2025-02-06 09:33:00,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 87 transitions, 208 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:33:00,137 INFO L231 Difference]: Finished difference. Result has 90 places, 86 transitions, 187 flow [2025-02-06 09:33:00,138 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=187, PETRI_PLACES=90, PETRI_TRANSITIONS=86} [2025-02-06 09:33:00,140 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, -5 predicate places. [2025-02-06 09:33:00,140 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 86 transitions, 187 flow [2025-02-06 09:33:00,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 09:33:00,141 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:33:00,141 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:33:00,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 09:33:00,141 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting salethreadErr2ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-02-06 09:33:00,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:33:00,142 INFO L85 PathProgramCache]: Analyzing trace with hash 362146053, now seen corresponding path program 1 times [2025-02-06 09:33:00,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:33:00,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477839677] [2025-02-06 09:33:00,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:33:00,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:33:00,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 09:33:00,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 09:33:00,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:33:00,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:33:00,179 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 09:33:00,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:33:00,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477839677] [2025-02-06 09:33:00,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477839677] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:33:00,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:33:00,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:33:00,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143779250] [2025-02-06 09:33:00,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:33:00,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:33:00,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:33:00,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:33:00,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:33:00,188 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 97 [2025-02-06 09:33:00,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 86 transitions, 187 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 09:33:00,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:33:00,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 97 [2025-02-06 09:33:00,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:33:00,233 INFO L124 PetriNetUnfolderBase]: 8/228 cut-off events. [2025-02-06 09:33:00,233 INFO L125 PetriNetUnfolderBase]: For 13/21 co-relation queries the response was YES. [2025-02-06 09:33:00,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 228 events. 8/228 cut-off events. For 13/21 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 823 event pairs, 4 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 272. Up to 25 conditions per place. [2025-02-06 09:33:00,235 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 12 selfloop transitions, 4 changer transitions 0/89 dead transitions. [2025-02-06 09:33:00,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 89 transitions, 228 flow [2025-02-06 09:33:00,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:33:00,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:33:00,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2025-02-06 09:33:00,238 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.845360824742268 [2025-02-06 09:33:00,238 INFO L175 Difference]: Start difference. First operand has 90 places, 86 transitions, 187 flow. Second operand 3 states and 246 transitions. [2025-02-06 09:33:00,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 89 transitions, 228 flow [2025-02-06 09:33:00,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 89 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:33:00,241 INFO L231 Difference]: Finished difference. Result has 91 places, 88 transitions, 211 flow [2025-02-06 09:33:00,241 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=91, PETRI_TRANSITIONS=88} [2025-02-06 09:33:00,243 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, -4 predicate places. [2025-02-06 09:33:00,244 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 88 transitions, 211 flow [2025-02-06 09:33:00,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 09:33:00,244 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:33:00,244 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:33:00,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 09:33:00,244 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-02-06 09:33:00,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:33:00,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1136417201, now seen corresponding path program 1 times [2025-02-06 09:33:00,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:33:00,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087551088] [2025-02-06 09:33:00,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:33:00,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:33:00,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-06 09:33:00,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-06 09:33:00,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:33:00,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:33:00,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:33:00,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:33:00,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087551088] [2025-02-06 09:33:00,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087551088] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:33:00,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:33:00,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:33:00,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401378110] [2025-02-06 09:33:00,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:33:00,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 09:33:00,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:33:00,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 09:33:00,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:33:00,396 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 97 [2025-02-06 09:33:00,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 88 transitions, 211 flow. Second operand has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 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 09:33:00,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:33:00,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 97 [2025-02-06 09:33:00,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:33:00,442 INFO L124 PetriNetUnfolderBase]: 7/99 cut-off events. [2025-02-06 09:33:00,442 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-02-06 09:33:00,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 99 events. 7/99 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 172 event pairs, 0 based on Foata normal form. 3/100 useless extension candidates. Maximal degree in co-relation 137. Up to 8 conditions per place. [2025-02-06 09:33:00,443 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 13 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2025-02-06 09:33:00,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 58 transitions, 176 flow [2025-02-06 09:33:00,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:33:00,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:33:00,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 462 transitions. [2025-02-06 09:33:00,445 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7938144329896907 [2025-02-06 09:33:00,445 INFO L175 Difference]: Start difference. First operand has 91 places, 88 transitions, 211 flow. Second operand 6 states and 462 transitions. [2025-02-06 09:33:00,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 58 transitions, 176 flow [2025-02-06 09:33:00,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 58 transitions, 154 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:33:00,447 INFO L231 Difference]: Finished difference. Result has 59 places, 52 transitions, 116 flow [2025-02-06 09:33:00,447 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=116, PETRI_PLACES=59, PETRI_TRANSITIONS=52} [2025-02-06 09:33:00,448 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, -36 predicate places. [2025-02-06 09:33:00,448 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 116 flow [2025-02-06 09:33:00,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 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 09:33:00,448 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:33:00,448 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:33:00,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 09:33:00,449 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-02-06 09:33:00,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:33:00,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1542204118, now seen corresponding path program 1 times [2025-02-06 09:33:00,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:33:00,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134165220] [2025-02-06 09:33:00,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:33:00,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:33:00,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-02-06 09:33:00,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-02-06 09:33:00,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:33:00,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:33:00,467 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:33:00,470 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-02-06 09:33:00,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-02-06 09:33:00,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:33:00,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:33:00,501 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:33:00,502 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:33:00,502 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2025-02-06 09:33:00,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2025-02-06 09:33:00,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2025-02-06 09:33:00,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2025-02-06 09:33:00,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2025-02-06 09:33:00,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2025-02-06 09:33:00,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2025-02-06 09:33:00,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2025-02-06 09:33:00,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2025-02-06 09:33:00,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2025-02-06 09:33:00,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2025-02-06 09:33:00,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2025-02-06 09:33:00,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2025-02-06 09:33:00,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2025-02-06 09:33:00,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2025-02-06 09:33:00,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 09:33:00,506 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:33:00,508 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:33:00,508 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 09:33:00,529 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 09:33:00,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 118 transitions, 252 flow [2025-02-06 09:33:00,561 INFO L124 PetriNetUnfolderBase]: 15/249 cut-off events. [2025-02-06 09:33:00,561 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-06 09:33:00,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 249 events. 15/249 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 597 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 142. Up to 8 conditions per place. [2025-02-06 09:33:00,563 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 118 transitions, 252 flow [2025-02-06 09:33:00,565 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 118 transitions, 252 flow [2025-02-06 09:33:00,566 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:33:00,568 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;@24cb9044, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:33:00,568 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2025-02-06 09:33:00,569 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:33:00,569 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-02-06 09:33:00,569 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:33:00,570 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:33:00,570 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:33:00,570 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-02-06 09:33:00,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:33:00,571 INFO L85 PathProgramCache]: Analyzing trace with hash -844409886, now seen corresponding path program 1 times [2025-02-06 09:33:00,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:33:00,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450972084] [2025-02-06 09:33:00,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:33:00,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:33:00,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 09:33:00,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 09:33:00,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:33:00,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:33:00,583 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 09:33:00,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:33:00,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450972084] [2025-02-06 09:33:00,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450972084] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:33:00,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:33:00,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:33:00,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150549966] [2025-02-06 09:33:00,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:33:00,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:33:00,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:33:00,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:33:00,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:33:00,584 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 118 [2025-02-06 09:33:00,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 118 transitions, 252 flow. Second operand has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 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 09:33:00,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:33:00,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 118 [2025-02-06 09:33:00,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:33:00,632 INFO L124 PetriNetUnfolderBase]: 19/254 cut-off events. [2025-02-06 09:33:00,632 INFO L125 PetriNetUnfolderBase]: For 35/41 co-relation queries the response was YES. [2025-02-06 09:33:00,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 254 events. 19/254 cut-off events. For 35/41 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 748 event pairs, 4 based on Foata normal form. 10/230 useless extension candidates. Maximal degree in co-relation 144. Up to 30 conditions per place. [2025-02-06 09:33:00,634 INFO L140 encePairwiseOnDemand]: 109/118 looper letters, 11 selfloop transitions, 0 changer transitions 0/107 dead transitions. [2025-02-06 09:33:00,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 107 transitions, 252 flow [2025-02-06 09:33:00,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:33:00,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:33:00,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 214 transitions. [2025-02-06 09:33:00,636 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9067796610169492 [2025-02-06 09:33:00,636 INFO L175 Difference]: Start difference. First operand has 115 places, 118 transitions, 252 flow. Second operand 2 states and 214 transitions. [2025-02-06 09:33:00,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 107 transitions, 252 flow [2025-02-06 09:33:00,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 107 transitions, 252 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:33:00,638 INFO L231 Difference]: Finished difference. Result has 107 places, 107 transitions, 230 flow [2025-02-06 09:33:00,639 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=230, PETRI_PLACES=107, PETRI_TRANSITIONS=107} [2025-02-06 09:33:00,639 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, -8 predicate places. [2025-02-06 09:33:00,639 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 107 transitions, 230 flow [2025-02-06 09:33:00,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 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 09:33:00,640 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:33:00,640 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] [2025-02-06 09:33:00,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 09:33:00,640 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-02-06 09:33:00,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:33:00,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1770959431, now seen corresponding path program 1 times [2025-02-06 09:33:00,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:33:00,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043232470] [2025-02-06 09:33:00,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:33:00,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:33:00,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 09:33:00,648 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 09:33:00,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:33:00,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:33:00,670 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 09:33:00,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:33:00,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043232470] [2025-02-06 09:33:00,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043232470] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:33:00,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:33:00,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:33:00,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943227268] [2025-02-06 09:33:00,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:33:00,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:33:00,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:33:00,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:33:00,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:33:00,695 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 118 [2025-02-06 09:33:00,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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 09:33:00,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:33:00,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 118 [2025-02-06 09:33:00,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:33:00,792 INFO L124 PetriNetUnfolderBase]: 60/451 cut-off events. [2025-02-06 09:33:00,793 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2025-02-06 09:33:00,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573 conditions, 451 events. 60/451 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2083 event pairs, 24 based on Foata normal form. 1/397 useless extension candidates. Maximal degree in co-relation 568. Up to 97 conditions per place. [2025-02-06 09:33:00,796 INFO L140 encePairwiseOnDemand]: 115/118 looper letters, 18 selfloop transitions, 2 changer transitions 0/110 dead transitions. [2025-02-06 09:33:00,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 110 transitions, 276 flow [2025-02-06 09:33:00,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:33:00,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:33:00,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2025-02-06 09:33:00,797 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8305084745762712 [2025-02-06 09:33:00,797 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 230 flow. Second operand 3 states and 294 transitions. [2025-02-06 09:33:00,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 110 transitions, 276 flow [2025-02-06 09:33:00,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 110 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:33:00,800 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 242 flow [2025-02-06 09:33:00,800 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2025-02-06 09:33:00,801 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, -5 predicate places. [2025-02-06 09:33:00,801 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 242 flow [2025-02-06 09:33:00,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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 09:33:00,801 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:33:00,801 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:33:00,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 09:33:00,802 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-02-06 09:33:00,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:33:00,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1089037722, now seen corresponding path program 1 times [2025-02-06 09:33:00,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:33:00,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548975289] [2025-02-06 09:33:00,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:33:00,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:33:00,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-06 09:33:00,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-06 09:33:00,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:33:00,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:33:01,006 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 09:33:01,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:33:01,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548975289] [2025-02-06 09:33:01,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548975289] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:33:01,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:33:01,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:33:01,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543317605] [2025-02-06 09:33:01,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:33:01,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:33:01,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:33:01,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:33:01,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:33:01,163 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 118 [2025-02-06 09:33:01,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 242 flow. Second operand has 6 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 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 09:33:01,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:33:01,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 118 [2025-02-06 09:33:01,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:33:01,323 INFO L124 PetriNetUnfolderBase]: 185/628 cut-off events. [2025-02-06 09:33:01,323 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2025-02-06 09:33:01,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 628 events. 185/628 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3511 event pairs, 55 based on Foata normal form. 0/570 useless extension candidates. Maximal degree in co-relation 974. Up to 214 conditions per place. [2025-02-06 09:33:01,328 INFO L140 encePairwiseOnDemand]: 112/118 looper letters, 41 selfloop transitions, 5 changer transitions 0/123 dead transitions. [2025-02-06 09:33:01,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 123 transitions, 364 flow [2025-02-06 09:33:01,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:33:01,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:33:01,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 514 transitions. [2025-02-06 09:33:01,330 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7259887005649718 [2025-02-06 09:33:01,330 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 242 flow. Second operand 6 states and 514 transitions. [2025-02-06 09:33:01,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 123 transitions, 364 flow [2025-02-06 09:33:01,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 123 transitions, 362 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:33:01,335 INFO L231 Difference]: Finished difference. Result has 113 places, 107 transitions, 248 flow [2025-02-06 09:33:01,336 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=248, PETRI_PLACES=113, PETRI_TRANSITIONS=107} [2025-02-06 09:33:01,337 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, -2 predicate places. [2025-02-06 09:33:01,337 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 107 transitions, 248 flow [2025-02-06 09:33:01,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 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 09:33:01,337 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:33:01,337 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:33:01,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 09:33:01,338 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-02-06 09:33:01,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:33:01,339 INFO L85 PathProgramCache]: Analyzing trace with hash -997755264, now seen corresponding path program 1 times [2025-02-06 09:33:01,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:33:01,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825751326] [2025-02-06 09:33:01,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:33:01,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:33:01,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 09:33:01,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 09:33:01,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:33:01,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:33:01,383 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 09:33:01,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:33:01,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825751326] [2025-02-06 09:33:01,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825751326] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:33:01,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:33:01,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:33:01,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330298155] [2025-02-06 09:33:01,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:33:01,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:33:01,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:33:01,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:33:01,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:33:01,391 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 118 [2025-02-06 09:33:01,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 107 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 09:33:01,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:33:01,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 118 [2025-02-06 09:33:01,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:33:01,513 INFO L124 PetriNetUnfolderBase]: 60/772 cut-off events. [2025-02-06 09:33:01,513 INFO L125 PetriNetUnfolderBase]: For 122/386 co-relation queries the response was YES. [2025-02-06 09:33:01,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 772 events. 60/772 cut-off events. For 122/386 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5016 event pairs, 9 based on Foata normal form. 0/651 useless extension candidates. Maximal degree in co-relation 951. Up to 62 conditions per place. [2025-02-06 09:33:01,520 INFO L140 encePairwiseOnDemand]: 110/118 looper letters, 22 selfloop transitions, 6 changer transitions 0/118 dead transitions. [2025-02-06 09:33:01,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 118 transitions, 337 flow [2025-02-06 09:33:01,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:33:01,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:33:01,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2025-02-06 09:33:01,522 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8559322033898306 [2025-02-06 09:33:01,522 INFO L175 Difference]: Start difference. First operand has 113 places, 107 transitions, 248 flow. Second operand 3 states and 303 transitions. [2025-02-06 09:33:01,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 118 transitions, 337 flow [2025-02-06 09:33:01,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 118 transitions, 327 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:33:01,525 INFO L231 Difference]: Finished difference. Result has 112 places, 113 transitions, 290 flow [2025-02-06 09:33:01,525 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=112, PETRI_TRANSITIONS=113} [2025-02-06 09:33:01,526 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, -3 predicate places. [2025-02-06 09:33:01,526 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 113 transitions, 290 flow [2025-02-06 09:33:01,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 09:33:01,526 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:33:01,526 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:33:01,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 09:33:01,527 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting salethreadErr2ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-02-06 09:33:01,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:33:01,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1341925464, now seen corresponding path program 1 times [2025-02-06 09:33:01,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:33:01,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937196271] [2025-02-06 09:33:01,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:33:01,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:33:01,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 09:33:01,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 09:33:01,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:33:01,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:33:01,566 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 09:33:01,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:33:01,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937196271] [2025-02-06 09:33:01,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937196271] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:33:01,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:33:01,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:33:01,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563245829] [2025-02-06 09:33:01,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:33:01,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:33:01,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:33:01,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:33:01,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:33:01,577 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 118 [2025-02-06 09:33:01,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 113 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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 09:33:01,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:33:01,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 118 [2025-02-06 09:33:01,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:33:01,840 INFO L124 PetriNetUnfolderBase]: 273/1920 cut-off events. [2025-02-06 09:33:01,840 INFO L125 PetriNetUnfolderBase]: For 374/820 co-relation queries the response was YES. [2025-02-06 09:33:01,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2710 conditions, 1920 events. 273/1920 cut-off events. For 374/820 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 16693 event pairs, 93 based on Foata normal form. 1/1650 useless extension candidates. Maximal degree in co-relation 2702. Up to 395 conditions per place. [2025-02-06 09:33:01,855 INFO L140 encePairwiseOnDemand]: 107/118 looper letters, 27 selfloop transitions, 8 changer transitions 0/126 dead transitions. [2025-02-06 09:33:01,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 126 transitions, 405 flow [2025-02-06 09:33:01,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:33:01,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:33:01,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2025-02-06 09:33:01,856 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.847457627118644 [2025-02-06 09:33:01,856 INFO L175 Difference]: Start difference. First operand has 112 places, 113 transitions, 290 flow. Second operand 3 states and 300 transitions. [2025-02-06 09:33:01,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 126 transitions, 405 flow [2025-02-06 09:33:01,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 126 transitions, 389 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:33:01,862 INFO L231 Difference]: Finished difference. Result has 114 places, 121 transitions, 348 flow [2025-02-06 09:33:01,862 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=114, PETRI_TRANSITIONS=121} [2025-02-06 09:33:01,862 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, -1 predicate places. [2025-02-06 09:33:01,862 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 121 transitions, 348 flow [2025-02-06 09:33:01,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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 09:33:01,863 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:33:01,863 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:33:01,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 09:33:01,863 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-02-06 09:33:01,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:33:01,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1118733218, now seen corresponding path program 1 times [2025-02-06 09:33:01,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:33:01,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775001609] [2025-02-06 09:33:01,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:33:01,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:33:01,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-06 09:33:01,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-06 09:33:01,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:33:01,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:33:01,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:33:01,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:33:01,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775001609] [2025-02-06 09:33:01,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775001609] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:33:01,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:33:01,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:33:01,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745633699] [2025-02-06 09:33:01,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:33:01,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 09:33:01,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:33:01,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 09:33:01,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:33:02,009 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 118 [2025-02-06 09:33:02,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 121 transitions, 348 flow. Second operand has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 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 09:33:02,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:33:02,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 118 [2025-02-06 09:33:02,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:33:02,410 INFO L124 PetriNetUnfolderBase]: 428/2871 cut-off events. [2025-02-06 09:33:02,410 INFO L125 PetriNetUnfolderBase]: For 844/995 co-relation queries the response was YES. [2025-02-06 09:33:02,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4420 conditions, 2871 events. 428/2871 cut-off events. For 844/995 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 28056 event pairs, 145 based on Foata normal form. 19/2533 useless extension candidates. Maximal degree in co-relation 4411. Up to 458 conditions per place. [2025-02-06 09:33:02,426 INFO L140 encePairwiseOnDemand]: 113/118 looper letters, 35 selfloop transitions, 5 changer transitions 0/137 dead transitions. [2025-02-06 09:33:02,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 137 transitions, 498 flow [2025-02-06 09:33:02,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:33:02,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:33:02,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 567 transitions. [2025-02-06 09:33:02,428 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8008474576271186 [2025-02-06 09:33:02,428 INFO L175 Difference]: Start difference. First operand has 114 places, 121 transitions, 348 flow. Second operand 6 states and 567 transitions. [2025-02-06 09:33:02,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 137 transitions, 498 flow [2025-02-06 09:33:02,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 137 transitions, 472 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:33:02,435 INFO L231 Difference]: Finished difference. Result has 120 places, 123 transitions, 358 flow [2025-02-06 09:33:02,435 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=358, PETRI_PLACES=120, PETRI_TRANSITIONS=123} [2025-02-06 09:33:02,436 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, 5 predicate places. [2025-02-06 09:33:02,436 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 123 transitions, 358 flow [2025-02-06 09:33:02,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 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 09:33:02,437 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:33:02,437 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:33:02,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 09:33:02,437 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting salethreadErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-02-06 09:33:02,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:33:02,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1846318322, now seen corresponding path program 1 times [2025-02-06 09:33:02,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:33:02,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491055922] [2025-02-06 09:33:02,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:33:02,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:33:02,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-02-06 09:33:02,455 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-06 09:33:02,455 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:33:02,455 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:33:02,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 09:33:02,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:33:02,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491055922] [2025-02-06 09:33:02,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491055922] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:33:02,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:33:02,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:33:02,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912771208] [2025-02-06 09:33:02,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:33:02,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:33:02,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:33:02,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:33:02,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:33:02,549 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 118 [2025-02-06 09:33:02,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 123 transitions, 358 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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 09:33:02,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:33:02,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 118 [2025-02-06 09:33:02,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:33:02,818 INFO L124 PetriNetUnfolderBase]: 224/2215 cut-off events. [2025-02-06 09:33:02,818 INFO L125 PetriNetUnfolderBase]: For 304/680 co-relation queries the response was YES. [2025-02-06 09:33:02,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3037 conditions, 2215 events. 224/2215 cut-off events. For 304/680 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 21288 event pairs, 65 based on Foata normal form. 33/1992 useless extension candidates. Maximal degree in co-relation 3025. Up to 283 conditions per place. [2025-02-06 09:33:02,830 INFO L140 encePairwiseOnDemand]: 112/118 looper letters, 30 selfloop transitions, 6 changer transitions 0/138 dead transitions. [2025-02-06 09:33:02,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 138 transitions, 499 flow [2025-02-06 09:33:02,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:33:02,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 09:33:02,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 499 transitions. [2025-02-06 09:33:02,833 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8457627118644068 [2025-02-06 09:33:02,833 INFO L175 Difference]: Start difference. First operand has 120 places, 123 transitions, 358 flow. Second operand 5 states and 499 transitions. [2025-02-06 09:33:02,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 138 transitions, 499 flow [2025-02-06 09:33:02,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 138 transitions, 493 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-06 09:33:02,836 INFO L231 Difference]: Finished difference. Result has 124 places, 124 transitions, 387 flow [2025-02-06 09:33:02,837 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=387, PETRI_PLACES=124, PETRI_TRANSITIONS=124} [2025-02-06 09:33:02,837 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, 9 predicate places. [2025-02-06 09:33:02,837 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 124 transitions, 387 flow [2025-02-06 09:33:02,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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 09:33:02,837 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:33:02,838 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:33:02,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 09:33:02,838 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting salethreadErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-02-06 09:33:02,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:33:02,838 INFO L85 PathProgramCache]: Analyzing trace with hash 940943050, now seen corresponding path program 1 times [2025-02-06 09:33:02,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:33:02,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726793724] [2025-02-06 09:33:02,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:33:02,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:33:02,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-02-06 09:33:02,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-06 09:33:02,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:33:02,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:33:02,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 09:33:02,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:33:02,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726793724] [2025-02-06 09:33:02,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726793724] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:33:02,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:33:02,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:33:02,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953377780] [2025-02-06 09:33:02,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:33:02,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:33:02,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:33:02,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:33:02,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:33:02,923 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 118 [2025-02-06 09:33:02,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 124 transitions, 387 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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 09:33:02,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:33:02,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 118 [2025-02-06 09:33:02,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:33:03,202 INFO L124 PetriNetUnfolderBase]: 204/2065 cut-off events. [2025-02-06 09:33:03,202 INFO L125 PetriNetUnfolderBase]: For 544/750 co-relation queries the response was YES. [2025-02-06 09:33:03,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3047 conditions, 2065 events. 204/2065 cut-off events. For 544/750 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 19588 event pairs, 61 based on Foata normal form. 33/1878 useless extension candidates. Maximal degree in co-relation 3032. Up to 257 conditions per place. [2025-02-06 09:33:03,217 INFO L140 encePairwiseOnDemand]: 112/118 looper letters, 26 selfloop transitions, 7 changer transitions 0/135 dead transitions. [2025-02-06 09:33:03,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 135 transitions, 510 flow [2025-02-06 09:33:03,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:33:03,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 09:33:03,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 495 transitions. [2025-02-06 09:33:03,219 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8389830508474576 [2025-02-06 09:33:03,219 INFO L175 Difference]: Start difference. First operand has 124 places, 124 transitions, 387 flow. Second operand 5 states and 495 transitions. [2025-02-06 09:33:03,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 135 transitions, 510 flow [2025-02-06 09:33:03,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 135 transitions, 507 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:33:03,223 INFO L231 Difference]: Finished difference. Result has 129 places, 125 transitions, 421 flow [2025-02-06 09:33:03,224 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=421, PETRI_PLACES=129, PETRI_TRANSITIONS=125} [2025-02-06 09:33:03,224 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, 14 predicate places. [2025-02-06 09:33:03,224 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 125 transitions, 421 flow [2025-02-06 09:33:03,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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 09:33:03,225 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:33:03,225 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:33:03,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-06 09:33:03,225 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting salethreadErr2ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-02-06 09:33:03,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:33:03,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1376818680, now seen corresponding path program 1 times [2025-02-06 09:33:03,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:33:03,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374434867] [2025-02-06 09:33:03,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:33:03,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:33:03,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-02-06 09:33:03,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-02-06 09:33:03,253 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:33:03,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:33:03,253 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:33:03,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-02-06 09:33:03,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-02-06 09:33:03,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:33:03,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:33:03,280 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:33:03,282 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:33:03,282 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (18 of 19 remaining) [2025-02-06 09:33:03,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2025-02-06 09:33:03,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2025-02-06 09:33:03,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2025-02-06 09:33:03,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2025-02-06 09:33:03,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2025-02-06 09:33:03,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 19 remaining) [2025-02-06 09:33:03,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2025-02-06 09:33:03,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2025-02-06 09:33:03,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2025-02-06 09:33:03,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2025-02-06 09:33:03,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 19 remaining) [2025-02-06 09:33:03,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2025-02-06 09:33:03,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2025-02-06 09:33:03,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2025-02-06 09:33:03,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2025-02-06 09:33:03,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2025-02-06 09:33:03,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2025-02-06 09:33:03,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2025-02-06 09:33:03,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-06 09:33:03,285 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:33:03,362 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2025-02-06 09:33:03,362 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 09:33:03,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 09:33:03 BasicIcfg [2025-02-06 09:33:03,368 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 09:33:03,369 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 09:33:03,369 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 09:33:03,369 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 09:33:03,369 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:32:58" (3/4) ... [2025-02-06 09:33:03,370 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-02-06 09:33:03,443 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 6. [2025-02-06 09:33:03,483 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 09:33:03,485 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 09:33:03,485 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 09:33:03,487 INFO L158 Benchmark]: Toolchain (without parser) took 5904.81ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 112.5MB in the beginning and 127.3MB in the end (delta: -14.8MB). Peak memory consumption was 128.6MB. Max. memory is 16.1GB. [2025-02-06 09:33:03,488 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 201.3MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:33:03,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.61ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 93.0MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 09:33:03,489 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.71ms. Allocated memory is still 142.6MB. Free memory was 93.0MB in the beginning and 91.0MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 09:33:03,489 INFO L158 Benchmark]: Boogie Preprocessor took 36.98ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 90.0MB in the end (delta: 978.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:33:03,489 INFO L158 Benchmark]: IcfgBuilder took 477.56ms. Allocated memory is still 142.6MB. Free memory was 90.0MB in the beginning and 71.0MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 09:33:03,490 INFO L158 Benchmark]: TraceAbstraction took 4783.39ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 70.5MB in the beginning and 142.5MB in the end (delta: -72.0MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. [2025-02-06 09:33:03,490 INFO L158 Benchmark]: Witness Printer took 116.22ms. Allocated memory is still 285.2MB. Free memory was 142.5MB in the beginning and 127.3MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 09:33:03,492 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 201.3MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 433.61ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 93.0MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.71ms. Allocated memory is still 142.6MB. Free memory was 93.0MB in the beginning and 91.0MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.98ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 90.0MB in the end (delta: 978.8kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 477.56ms. Allocated memory is still 142.6MB. Free memory was 90.0MB in the beginning and 71.0MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4783.39ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 70.5MB in the beginning and 142.5MB in the end (delta: -72.0MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. * Witness Printer took 116.22ms. Allocated memory is still 285.2MB. Free memory was 142.5MB in the beginning and 127.3MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 722]: Data race detected Data race detected The following path leads to a data race: [L717] 0 int numberOfSeatsSold; VAL [numberOfSeatsSold=0] [L718] 0 int stopSales; VAL [numberOfSeatsSold=0, stopSales=0] [L719] 0 int numOfTickets; VAL [numOfTickets=0, numberOfSeatsSold=0, stopSales=0] [L736] 0 pthread_t salethreads[15]; VAL [\old(argc)=61, \old(argv)={65:63}, argc=61, numOfTickets=0, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L738] 0 numOfTickets = 15 VAL [\old(argc)=61, \old(argv)={65:63}, argc=61, numOfTickets=15, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L741] 0 numberOfSeatsSold = 0 VAL [\old(argc)=61, \old(argv)={65:63}, argc=61, numOfTickets=15, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L744] 0 stopSales = 0 VAL [\old(argc)=61, \old(argv)={65:63}, argc=61, numOfTickets=15, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] 0 int i = 0; VAL [\old(argc)=61, \old(argv)={65:63}, argc=61, i=0, numOfTickets=15, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] COND TRUE 0 i < 15 VAL [numOfTickets=15, numberOfSeatsSold=0, stopSales=0] [L747] 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(argc)=61, \old(argv)={65:63}, argc=61, i=0, numOfTickets=15, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=61, \old(argv)={65:63}, argc=61, i=0, numOfTickets=15, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] 0 i++ VAL [\old(arg)={0:0}, \old(argc)=61, \old(argv)={65:63}, argc=61, i=1, numOfTickets=15, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] COND TRUE 0 i < 15 VAL [\old(arg)={0:0}, numOfTickets=15, numberOfSeatsSold=0, stopSales=0] [L747] 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=61, \old(argv)={65:63}, argc=61, i=1, numOfTickets=15, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=61, \old(argv)={65:63}, argc=61, i=1, numOfTickets=15, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L721] 1 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=15, numberOfSeatsSold=0, stopSales=0] [L721] 2 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=15, numberOfSeatsSold=0, stopSales=0] [L721] COND TRUE 1 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=15, numberOfSeatsSold=0, stopSales=0] [L722] 1 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=15, numberOfSeatsSold=0, stopSales=0] [L723] COND FALSE 1 !(_numberOfSeatsSold >= (15 - (((15 / 10) == 0) ? 1 : (15 / 10)))) VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=15, numberOfSeatsSold=0, stopSales=0] [L721] 2 !stopSales VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=15, numberOfSeatsSold=0, stopSales=0] [L721] COND TRUE 2 !stopSales VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=15, numberOfSeatsSold=0, stopSales=0] [L722] 2 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=15, numberOfSeatsSold=0, stopSales=0] [L729] 1 numberOfSeatsSold = _numberOfSeatsSold + 1 VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=15, numberOfSeatsSold=1, stopSales=0] [L722] 2 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=15, numberOfSeatsSold=1, stopSales=0] Now there is a data race on ~numberOfSeatsSold~0 between C: numberOfSeatsSold = _numberOfSeatsSold + 1 [729] and C: int _numberOfSeatsSold = numberOfSeatsSold; [722] - UnprovableResult [Line: 721]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 752]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 747]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 750]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 747]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 111 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.8s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 169 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 251 IncrementalHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 9 mSDtfsCounter, 251 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=211occurred in iteration=5, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 233 NumberOfCodeBlocks, 233 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 337 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 129 locations, 19 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 276 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 166 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 531 IncrementalHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 37 mSDtfsCounter, 531 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=421occurred in iteration=8, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 366 NumberOfCodeBlocks, 366 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 296 ConstructedInterpolants, 0 QuantifiedInterpolants, 613 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 5/5 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-02-06 09:33:03,513 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)