./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 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-deagle/airline-15.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c250d04a54594f141e4a6230ba64a939d316d8b15028517201aca3da084476d7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:56:32,707 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:56:32,766 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:56:32,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:56:32,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:56:32,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:56:32,794 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:56:32,794 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:56:32,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:56:32,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:56:32,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:56:32,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:56:32,794 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:56:32,794 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:56:32,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:56:32,795 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:56:32,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:56:32,795 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:56:32,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:56:32,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:56:32,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:56:32,796 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:56:32,796 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:56:32,796 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:56:32,796 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:56:32,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:56:32,796 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:56:32,796 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:56:32,796 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:56:32,797 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:56:32,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:56:32,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:56:32,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:56:32,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:56:32,797 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:56:32,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:56:32,797 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:56:32,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:56:32,797 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:56:32,797 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:56:32,797 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:56:32,797 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:56:32,797 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c250d04a54594f141e4a6230ba64a939d316d8b15028517201aca3da084476d7 [2025-03-04 06:56:33,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:56:33,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:56:33,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:56:33,031 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:56:33,031 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:56:33,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/airline-15.i [2025-03-04 06:56:34,221 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c686612fc/120ee4d42834479084495c94308e1142/FLAG0767bf70c [2025-03-04 06:56:34,487 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:56:34,488 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/airline-15.i [2025-03-04 06:56:34,498 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c686612fc/120ee4d42834479084495c94308e1142/FLAG0767bf70c [2025-03-04 06:56:34,507 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c686612fc/120ee4d42834479084495c94308e1142 [2025-03-04 06:56:34,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:56:34,509 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:56:34,510 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:56:34,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:56:34,513 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:56:34,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:56:34" (1/1) ... [2025-03-04 06:56:34,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@357e2eb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:34, skipping insertion in model container [2025-03-04 06:56:34,514 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:56:34" (1/1) ... [2025-03-04 06:56:34,533 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:56:34,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:56:34,723 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:56:34,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:56:34,795 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:56:34,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:34 WrapperNode [2025-03-04 06:56:34,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:56:34,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:56:34,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:56:34,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:56:34,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:34" (1/1) ... [2025-03-04 06:56:34,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:34" (1/1) ... [2025-03-04 06:56:34,826 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2025-03-04 06:56:34,826 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:56:34,827 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:56:34,827 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:56:34,827 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:56:34,831 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:34" (1/1) ... [2025-03-04 06:56:34,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:34" (1/1) ... [2025-03-04 06:56:34,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:34" (1/1) ... [2025-03-04 06:56:34,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:34" (1/1) ... [2025-03-04 06:56:34,840 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:34" (1/1) ... [2025-03-04 06:56:34,844 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:34" (1/1) ... [2025-03-04 06:56:34,845 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:34" (1/1) ... [2025-03-04 06:56:34,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:34" (1/1) ... [2025-03-04 06:56:34,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:56:34,847 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:56:34,847 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:56:34,847 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:56:34,852 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:34" (1/1) ... [2025-03-04 06:56:34,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:56:34,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:56:34,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 06:56:34,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 06:56:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 06:56:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 06:56:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 06:56:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:56:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 06:56:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2025-03-04 06:56:34,898 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2025-03-04 06:56:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 06:56:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:56:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 06:56:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:56:34,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:56:34,898 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 06:56:35,002 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:56:35,003 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:56:35,141 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L736: havoc main_~#salethreads~0#1.base, main_~#salethreads~0#1.offset; [2025-03-04 06:56:35,142 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L736-1: SUMMARY for call ULTIMATE.dealloc(main_~#salethreads~0#1.base, main_~#salethreads~0#1.offset); srcloc: null [2025-03-04 06:56:35,143 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:56:35,143 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:56:35,178 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:56:35,178 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:56:35,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:56:35 BoogieIcfgContainer [2025-03-04 06:56:35,178 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:56:35,180 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:56:35,180 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:56:35,183 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:56:35,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:56:34" (1/3) ... [2025-03-04 06:56:35,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb08c76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:56:35, skipping insertion in model container [2025-03-04 06:56:35,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:56:34" (2/3) ... [2025-03-04 06:56:35,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb08c76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:56:35, skipping insertion in model container [2025-03-04 06:56:35,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:56:35" (3/3) ... [2025-03-04 06:56:35,185 INFO L128 eAbstractionObserver]: Analyzing ICFG airline-15.i [2025-03-04 06:56:35,196 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:56:35,198 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. [2025-03-04 06:56:35,198 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:56:35,245 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-04 06:56:35,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 97 transitions, 201 flow [2025-03-04 06:56:35,333 INFO L124 PetriNetUnfolderBase]: 7/140 cut-off events. [2025-03-04 06:56:35,336 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:56:35,340 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. [2025-03-04 06:56:35,341 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 97 transitions, 201 flow [2025-03-04 06:56:35,343 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 97 transitions, 201 flow [2025-03-04 06:56:35,349 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:56:35,358 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;@1df03666, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:56:35,359 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-03-04 06:56:35,363 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:56:35,364 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-03-04 06:56:35,364 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:56:35,364 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:35,364 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:35,364 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-03-04 06:56:35,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:35,370 INFO L85 PathProgramCache]: Analyzing trace with hash 704519650, now seen corresponding path program 1 times [2025-03-04 06:56:35,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:35,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690610821] [2025-03-04 06:56:35,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:35,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:35,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 06:56:35,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 06:56:35,451 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:35,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:35,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:35,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:35,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690610821] [2025-03-04 06:56:35,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690610821] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:35,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:35,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 06:56:35,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853115039] [2025-03-04 06:56:35,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:35,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 06:56:35,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:35,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 06:56:35,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 06:56:35,556 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 97 [2025-03-04 06:56:35,559 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) [2025-03-04 06:56:35,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:35,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 97 [2025-03-04 06:56:35,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:35,612 INFO L124 PetriNetUnfolderBase]: 3/127 cut-off events. [2025-03-04 06:56:35,612 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2025-03-04 06:56:35,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 127 events. 3/127 cut-off events. For 5/6 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. [2025-03-04 06:56:35,615 INFO L140 encePairwiseOnDemand]: 90/97 looper letters, 7 selfloop transitions, 0 changer transitions 0/88 dead transitions. [2025-03-04 06:56:35,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 88 transitions, 197 flow [2025-03-04 06:56:35,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 06:56:35,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-04 06:56:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 178 transitions. [2025-03-04 06:56:35,643 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9175257731958762 [2025-03-04 06:56:35,645 INFO L175 Difference]: Start difference. First operand has 95 places, 97 transitions, 201 flow. Second operand 2 states and 178 transitions. [2025-03-04 06:56:35,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 88 transitions, 197 flow [2025-03-04 06:56:35,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 88 transitions, 197 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:56:35,650 INFO L231 Difference]: Finished difference. Result has 89 places, 88 transitions, 183 flow [2025-03-04 06:56:35,651 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} [2025-03-04 06:56:35,655 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, -6 predicate places. [2025-03-04 06:56:35,655 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 88 transitions, 183 flow [2025-03-04 06:56:35,656 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) [2025-03-04 06:56:35,656 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:35,656 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] [2025-03-04 06:56:35,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:56:35,657 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-03-04 06:56:35,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:35,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1997247111, now seen corresponding path program 1 times [2025-03-04 06:56:35,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:35,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38233546] [2025-03-04 06:56:35,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:35,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:35,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 06:56:35,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 06:56:35,686 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:35,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:35,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:35,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:35,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38233546] [2025-03-04 06:56:35,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38233546] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:35,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:35,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 06:56:35,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686234577] [2025-03-04 06:56:35,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:35,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:56:35,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:35,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:56:35,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:56:35,783 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 97 [2025-03-04 06:56:35,784 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) [2025-03-04 06:56:35,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:35,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 97 [2025-03-04 06:56:35,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:35,847 INFO L124 PetriNetUnfolderBase]: 10/174 cut-off events. [2025-03-04 06:56:35,847 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-04 06:56:35,849 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. [2025-03-04 06:56:35,850 INFO L140 encePairwiseOnDemand]: 94/97 looper letters, 13 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2025-03-04 06:56:35,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 90 transitions, 217 flow [2025-03-04 06:56:35,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:56:35,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:56:35,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2025-03-04 06:56:35,852 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8384879725085911 [2025-03-04 06:56:35,852 INFO L175 Difference]: Start difference. First operand has 89 places, 88 transitions, 183 flow. Second operand 3 states and 244 transitions. [2025-03-04 06:56:35,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 90 transitions, 217 flow [2025-03-04 06:56:35,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 90 transitions, 217 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:56:35,854 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 191 flow [2025-03-04 06:56:35,855 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} [2025-03-04 06:56:35,855 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, -3 predicate places. [2025-03-04 06:56:35,855 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 191 flow [2025-03-04 06:56:35,855 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) [2025-03-04 06:56:35,855 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:35,855 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:35,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:56:35,856 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-03-04 06:56:35,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:35,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1443432560, now seen corresponding path program 1 times [2025-03-04 06:56:35,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:35,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294557729] [2025-03-04 06:56:35,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:35,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:35,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 06:56:35,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 06:56:35,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:35,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:36,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:36,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294557729] [2025-03-04 06:56:36,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294557729] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:36,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:36,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:56:36,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171698049] [2025-03-04 06:56:36,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:36,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:56:36,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:36,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:56:36,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:56:36,318 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 97 [2025-03-04 06:56:36,318 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) [2025-03-04 06:56:36,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:36,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 97 [2025-03-04 06:56:36,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:36,387 INFO L124 PetriNetUnfolderBase]: 33/198 cut-off events. [2025-03-04 06:56:36,387 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-03-04 06:56:36,389 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. [2025-03-04 06:56:36,390 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 28 selfloop transitions, 5 changer transitions 0/95 dead transitions. [2025-03-04 06:56:36,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 95 transitions, 271 flow [2025-03-04 06:56:36,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:56:36,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:56:36,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 412 transitions. [2025-03-04 06:56:36,394 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7079037800687286 [2025-03-04 06:56:36,394 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 191 flow. Second operand 6 states and 412 transitions. [2025-03-04 06:56:36,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 95 transitions, 271 flow [2025-03-04 06:56:36,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 95 transitions, 267 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:56:36,396 INFO L231 Difference]: Finished difference. Result has 94 places, 87 transitions, 195 flow [2025-03-04 06:56:36,396 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} [2025-03-04 06:56:36,396 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, -1 predicate places. [2025-03-04 06:56:36,396 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 87 transitions, 195 flow [2025-03-04 06:56:36,397 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) [2025-03-04 06:56:36,397 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:36,397 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:36,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 06:56:36,397 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-03-04 06:56:36,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:36,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1595949315, now seen corresponding path program 1 times [2025-03-04 06:56:36,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:36,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533777993] [2025-03-04 06:56:36,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:36,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:36,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 06:56:36,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 06:56:36,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:36,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:36,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:36,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533777993] [2025-03-04 06:56:36,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533777993] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:36,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:36,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:56:36,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183421260] [2025-03-04 06:56:36,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:36,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:56:36,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:36,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:56:36,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:56:36,442 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 97 [2025-03-04 06:56:36,443 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) [2025-03-04 06:56:36,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:36,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 97 [2025-03-04 06:56:36,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:36,470 INFO L124 PetriNetUnfolderBase]: 1/154 cut-off events. [2025-03-04 06:56:36,470 INFO L125 PetriNetUnfolderBase]: For 10/18 co-relation queries the response was YES. [2025-03-04 06:56:36,471 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. [2025-03-04 06:56:36,471 INFO L140 encePairwiseOnDemand]: 94/97 looper letters, 8 selfloop transitions, 2 changer transitions 0/87 dead transitions. [2025-03-04 06:56:36,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 87 transitions, 218 flow [2025-03-04 06:56:36,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:56:36,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:56:36,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2025-03-04 06:56:36,473 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.852233676975945 [2025-03-04 06:56:36,473 INFO L175 Difference]: Start difference. First operand has 94 places, 87 transitions, 195 flow. Second operand 3 states and 248 transitions. [2025-03-04 06:56:36,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 87 transitions, 218 flow [2025-03-04 06:56:36,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 87 transitions, 208 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 06:56:36,475 INFO L231 Difference]: Finished difference. Result has 90 places, 86 transitions, 187 flow [2025-03-04 06:56:36,476 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} [2025-03-04 06:56:36,476 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, -5 predicate places. [2025-03-04 06:56:36,477 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 86 transitions, 187 flow [2025-03-04 06:56:36,477 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) [2025-03-04 06:56:36,477 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:36,477 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] [2025-03-04 06:56:36,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 06:56:36,477 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting salethreadErr2ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-03-04 06:56:36,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:36,479 INFO L85 PathProgramCache]: Analyzing trace with hash 362146053, now seen corresponding path program 1 times [2025-03-04 06:56:36,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:36,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509691591] [2025-03-04 06:56:36,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:36,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:36,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-04 06:56:36,491 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-04 06:56:36,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:36,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:36,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:36,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:36,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509691591] [2025-03-04 06:56:36,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509691591] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:36,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:36,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:56:36,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931928542] [2025-03-04 06:56:36,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:36,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:56:36,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:36,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:56:36,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:56:36,518 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 97 [2025-03-04 06:56:36,519 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) [2025-03-04 06:56:36,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:36,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 97 [2025-03-04 06:56:36,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:36,555 INFO L124 PetriNetUnfolderBase]: 8/228 cut-off events. [2025-03-04 06:56:36,555 INFO L125 PetriNetUnfolderBase]: For 13/21 co-relation queries the response was YES. [2025-03-04 06:56:36,556 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. [2025-03-04 06:56:36,557 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 12 selfloop transitions, 4 changer transitions 0/89 dead transitions. [2025-03-04 06:56:36,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 89 transitions, 228 flow [2025-03-04 06:56:36,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:56:36,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:56:36,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2025-03-04 06:56:36,558 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.845360824742268 [2025-03-04 06:56:36,558 INFO L175 Difference]: Start difference. First operand has 90 places, 86 transitions, 187 flow. Second operand 3 states and 246 transitions. [2025-03-04 06:56:36,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 89 transitions, 228 flow [2025-03-04 06:56:36,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 89 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:56:36,561 INFO L231 Difference]: Finished difference. Result has 91 places, 88 transitions, 211 flow [2025-03-04 06:56:36,561 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} [2025-03-04 06:56:36,562 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, -4 predicate places. [2025-03-04 06:56:36,563 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 88 transitions, 211 flow [2025-03-04 06:56:36,564 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) [2025-03-04 06:56:36,564 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:36,564 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:36,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 06:56:36,564 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-03-04 06:56:36,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:36,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1136417201, now seen corresponding path program 1 times [2025-03-04 06:56:36,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:36,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161991221] [2025-03-04 06:56:36,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:36,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:36,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-04 06:56:36,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-04 06:56:36,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:36,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:36,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 06:56:36,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:36,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161991221] [2025-03-04 06:56:36,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161991221] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:36,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:36,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:56:36,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105175375] [2025-03-04 06:56:36,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:36,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 06:56:36,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:36,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 06:56:36,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 06:56:36,703 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 97 [2025-03-04 06:56:36,703 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) [2025-03-04 06:56:36,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:36,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 97 [2025-03-04 06:56:36,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:36,757 INFO L124 PetriNetUnfolderBase]: 7/99 cut-off events. [2025-03-04 06:56:36,757 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-03-04 06:56:36,757 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. [2025-03-04 06:56:36,757 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 13 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2025-03-04 06:56:36,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 58 transitions, 176 flow [2025-03-04 06:56:36,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:56:36,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:56:36,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 462 transitions. [2025-03-04 06:56:36,759 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7938144329896907 [2025-03-04 06:56:36,759 INFO L175 Difference]: Start difference. First operand has 91 places, 88 transitions, 211 flow. Second operand 6 states and 462 transitions. [2025-03-04 06:56:36,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 58 transitions, 176 flow [2025-03-04 06:56:36,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 58 transitions, 154 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 06:56:36,761 INFO L231 Difference]: Finished difference. Result has 59 places, 52 transitions, 116 flow [2025-03-04 06:56:36,761 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} [2025-03-04 06:56:36,766 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, -36 predicate places. [2025-03-04 06:56:36,766 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 116 flow [2025-03-04 06:56:36,766 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) [2025-03-04 06:56:36,766 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:36,766 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] [2025-03-04 06:56:36,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 06:56:36,766 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-03-04 06:56:36,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:36,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1542204118, now seen corresponding path program 1 times [2025-03-04 06:56:36,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:36,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546437583] [2025-03-04 06:56:36,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:36,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:36,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-04 06:56:36,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-04 06:56:36,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:36,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:56:36,796 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 06:56:36,798 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-04 06:56:36,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-04 06:56:36,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:36,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:56:36,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 06:56:36,821 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 06:56:36,821 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2025-03-04 06:56:36,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2025-03-04 06:56:36,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2025-03-04 06:56:36,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2025-03-04 06:56:36,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2025-03-04 06:56:36,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2025-03-04 06:56:36,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2025-03-04 06:56:36,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2025-03-04 06:56:36,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2025-03-04 06:56:36,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2025-03-04 06:56:36,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2025-03-04 06:56:36,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2025-03-04 06:56:36,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2025-03-04 06:56:36,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2025-03-04 06:56:36,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2025-03-04 06:56:36,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 06:56:36,823 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:36,826 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-04 06:56:36,826 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-04 06:56:36,844 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-04 06:56:36,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 118 transitions, 252 flow [2025-03-04 06:56:36,868 INFO L124 PetriNetUnfolderBase]: 15/249 cut-off events. [2025-03-04 06:56:36,868 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-04 06:56:36,869 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. [2025-03-04 06:56:36,869 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 118 transitions, 252 flow [2025-03-04 06:56:36,870 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 118 transitions, 252 flow [2025-03-04 06:56:36,871 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:56:36,872 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;@1df03666, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:56:36,872 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2025-03-04 06:56:36,873 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:56:36,873 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-03-04 06:56:36,873 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:56:36,873 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:36,873 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:36,873 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-03-04 06:56:36,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:36,874 INFO L85 PathProgramCache]: Analyzing trace with hash -844409886, now seen corresponding path program 1 times [2025-03-04 06:56:36,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:36,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749148008] [2025-03-04 06:56:36,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:36,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:36,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 06:56:36,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 06:56:36,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:36,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:36,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:36,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:36,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749148008] [2025-03-04 06:56:36,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749148008] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:36,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:36,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 06:56:36,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172839968] [2025-03-04 06:56:36,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:36,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 06:56:36,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:36,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 06:56:36,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 06:56:36,889 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 118 [2025-03-04 06:56:36,889 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) [2025-03-04 06:56:36,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:36,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 118 [2025-03-04 06:56:36,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:36,926 INFO L124 PetriNetUnfolderBase]: 19/254 cut-off events. [2025-03-04 06:56:36,926 INFO L125 PetriNetUnfolderBase]: For 38/44 co-relation queries the response was YES. [2025-03-04 06:56:36,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 254 events. 19/254 cut-off events. For 38/44 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. [2025-03-04 06:56:36,927 INFO L140 encePairwiseOnDemand]: 109/118 looper letters, 11 selfloop transitions, 0 changer transitions 0/107 dead transitions. [2025-03-04 06:56:36,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 107 transitions, 252 flow [2025-03-04 06:56:36,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 06:56:36,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-04 06:56:36,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 214 transitions. [2025-03-04 06:56:36,929 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9067796610169492 [2025-03-04 06:56:36,929 INFO L175 Difference]: Start difference. First operand has 115 places, 118 transitions, 252 flow. Second operand 2 states and 214 transitions. [2025-03-04 06:56:36,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 107 transitions, 252 flow [2025-03-04 06:56:36,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 107 transitions, 252 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:56:36,931 INFO L231 Difference]: Finished difference. Result has 107 places, 107 transitions, 230 flow [2025-03-04 06:56:36,931 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} [2025-03-04 06:56:36,932 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, -8 predicate places. [2025-03-04 06:56:36,932 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 107 transitions, 230 flow [2025-03-04 06:56:36,932 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) [2025-03-04 06:56:36,932 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:36,932 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] [2025-03-04 06:56:36,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 06:56:36,932 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-03-04 06:56:36,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:36,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1770959431, now seen corresponding path program 1 times [2025-03-04 06:56:36,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:36,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507846230] [2025-03-04 06:56:36,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:36,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:36,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 06:56:36,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 06:56:36,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:36,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:36,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:36,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:36,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507846230] [2025-03-04 06:56:36,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507846230] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:36,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:36,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 06:56:36,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682727308] [2025-03-04 06:56:36,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:36,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:56:36,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:36,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:56:36,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:56:36,991 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 118 [2025-03-04 06:56:36,991 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) [2025-03-04 06:56:36,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:36,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 118 [2025-03-04 06:56:36,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:37,058 INFO L124 PetriNetUnfolderBase]: 60/451 cut-off events. [2025-03-04 06:56:37,058 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2025-03-04 06:56:37,059 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. [2025-03-04 06:56:37,060 INFO L140 encePairwiseOnDemand]: 115/118 looper letters, 18 selfloop transitions, 2 changer transitions 0/110 dead transitions. [2025-03-04 06:56:37,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 110 transitions, 276 flow [2025-03-04 06:56:37,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:56:37,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:56:37,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2025-03-04 06:56:37,062 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8305084745762712 [2025-03-04 06:56:37,062 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 230 flow. Second operand 3 states and 294 transitions. [2025-03-04 06:56:37,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 110 transitions, 276 flow [2025-03-04 06:56:37,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 110 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:56:37,064 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 242 flow [2025-03-04 06:56:37,064 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} [2025-03-04 06:56:37,064 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, -5 predicate places. [2025-03-04 06:56:37,064 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 242 flow [2025-03-04 06:56:37,065 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) [2025-03-04 06:56:37,065 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:37,065 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:37,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 06:56:37,065 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-03-04 06:56:37,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:37,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1089037722, now seen corresponding path program 1 times [2025-03-04 06:56:37,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:37,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855829371] [2025-03-04 06:56:37,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:37,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:37,071 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 06:56:37,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 06:56:37,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:37,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:37,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:37,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:37,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855829371] [2025-03-04 06:56:37,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855829371] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:37,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:37,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:56:37,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611092472] [2025-03-04 06:56:37,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:37,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:56:37,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:37,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:56:37,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:56:37,322 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 118 [2025-03-04 06:56:37,323 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) [2025-03-04 06:56:37,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:37,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 118 [2025-03-04 06:56:37,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:37,455 INFO L124 PetriNetUnfolderBase]: 185/628 cut-off events. [2025-03-04 06:56:37,455 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2025-03-04 06:56:37,457 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. [2025-03-04 06:56:37,460 INFO L140 encePairwiseOnDemand]: 112/118 looper letters, 41 selfloop transitions, 5 changer transitions 0/123 dead transitions. [2025-03-04 06:56:37,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 123 transitions, 364 flow [2025-03-04 06:56:37,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:56:37,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:56:37,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 514 transitions. [2025-03-04 06:56:37,462 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7259887005649718 [2025-03-04 06:56:37,462 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 242 flow. Second operand 6 states and 514 transitions. [2025-03-04 06:56:37,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 123 transitions, 364 flow [2025-03-04 06:56:37,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 123 transitions, 362 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:56:37,466 INFO L231 Difference]: Finished difference. Result has 113 places, 107 transitions, 248 flow [2025-03-04 06:56:37,467 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} [2025-03-04 06:56:37,467 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, -2 predicate places. [2025-03-04 06:56:37,467 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 107 transitions, 248 flow [2025-03-04 06:56:37,468 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) [2025-03-04 06:56:37,468 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:37,468 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:37,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 06:56:37,468 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-03-04 06:56:37,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:37,469 INFO L85 PathProgramCache]: Analyzing trace with hash -997755264, now seen corresponding path program 1 times [2025-03-04 06:56:37,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:37,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159369587] [2025-03-04 06:56:37,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:37,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:37,479 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 06:56:37,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 06:56:37,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:37,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:37,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:37,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:37,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159369587] [2025-03-04 06:56:37,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159369587] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:37,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:37,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:56:37,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526079862] [2025-03-04 06:56:37,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:37,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:56:37,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:37,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:56:37,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:56:37,510 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 118 [2025-03-04 06:56:37,511 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) [2025-03-04 06:56:37,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:37,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 118 [2025-03-04 06:56:37,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:37,610 INFO L124 PetriNetUnfolderBase]: 60/772 cut-off events. [2025-03-04 06:56:37,610 INFO L125 PetriNetUnfolderBase]: For 122/386 co-relation queries the response was YES. [2025-03-04 06:56:37,613 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. [2025-03-04 06:56:37,615 INFO L140 encePairwiseOnDemand]: 110/118 looper letters, 22 selfloop transitions, 6 changer transitions 0/118 dead transitions. [2025-03-04 06:56:37,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 118 transitions, 337 flow [2025-03-04 06:56:37,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:56:37,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:56:37,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2025-03-04 06:56:37,616 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8559322033898306 [2025-03-04 06:56:37,616 INFO L175 Difference]: Start difference. First operand has 113 places, 107 transitions, 248 flow. Second operand 3 states and 303 transitions. [2025-03-04 06:56:37,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 118 transitions, 337 flow [2025-03-04 06:56:37,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 118 transitions, 327 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 06:56:37,619 INFO L231 Difference]: Finished difference. Result has 112 places, 113 transitions, 290 flow [2025-03-04 06:56:37,619 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} [2025-03-04 06:56:37,620 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, -3 predicate places. [2025-03-04 06:56:37,620 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 113 transitions, 290 flow [2025-03-04 06:56:37,620 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) [2025-03-04 06:56:37,620 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:37,620 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] [2025-03-04 06:56:37,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 06:56:37,620 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting salethreadErr2ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-03-04 06:56:37,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:37,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1341925464, now seen corresponding path program 1 times [2025-03-04 06:56:37,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:37,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742998130] [2025-03-04 06:56:37,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:37,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:37,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-04 06:56:37,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-04 06:56:37,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:37,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:37,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:56:37,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:37,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742998130] [2025-03-04 06:56:37,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742998130] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:37,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:37,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:56:37,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71302239] [2025-03-04 06:56:37,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:37,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:56:37,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:37,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:56:37,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:56:37,658 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 118 [2025-03-04 06:56:37,659 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) [2025-03-04 06:56:37,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:37,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 118 [2025-03-04 06:56:37,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:37,848 INFO L124 PetriNetUnfolderBase]: 273/1920 cut-off events. [2025-03-04 06:56:37,849 INFO L125 PetriNetUnfolderBase]: For 374/820 co-relation queries the response was YES. [2025-03-04 06:56:37,854 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. [2025-03-04 06:56:37,859 INFO L140 encePairwiseOnDemand]: 107/118 looper letters, 27 selfloop transitions, 8 changer transitions 0/126 dead transitions. [2025-03-04 06:56:37,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 126 transitions, 405 flow [2025-03-04 06:56:37,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:56:37,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:56:37,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2025-03-04 06:56:37,861 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.847457627118644 [2025-03-04 06:56:37,861 INFO L175 Difference]: Start difference. First operand has 112 places, 113 transitions, 290 flow. Second operand 3 states and 300 transitions. [2025-03-04 06:56:37,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 126 transitions, 405 flow [2025-03-04 06:56:37,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 126 transitions, 389 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:56:37,864 INFO L231 Difference]: Finished difference. Result has 114 places, 121 transitions, 348 flow [2025-03-04 06:56:37,864 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} [2025-03-04 06:56:37,864 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, -1 predicate places. [2025-03-04 06:56:37,864 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 121 transitions, 348 flow [2025-03-04 06:56:37,864 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) [2025-03-04 06:56:37,864 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:37,864 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:37,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-04 06:56:37,865 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-03-04 06:56:37,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:37,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1118733218, now seen corresponding path program 1 times [2025-03-04 06:56:37,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:37,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479238500] [2025-03-04 06:56:37,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:37,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:37,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-04 06:56:37,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-04 06:56:37,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:37,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:37,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 06:56:37,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:37,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479238500] [2025-03-04 06:56:37,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479238500] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:37,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:37,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:56:37,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117561102] [2025-03-04 06:56:37,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:37,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 06:56:37,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:37,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 06:56:37,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 06:56:37,989 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 118 [2025-03-04 06:56:37,990 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) [2025-03-04 06:56:37,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:37,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 118 [2025-03-04 06:56:37,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:38,235 INFO L124 PetriNetUnfolderBase]: 428/2871 cut-off events. [2025-03-04 06:56:38,236 INFO L125 PetriNetUnfolderBase]: For 844/995 co-relation queries the response was YES. [2025-03-04 06:56:38,247 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. [2025-03-04 06:56:38,257 INFO L140 encePairwiseOnDemand]: 113/118 looper letters, 35 selfloop transitions, 5 changer transitions 0/137 dead transitions. [2025-03-04 06:56:38,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 137 transitions, 498 flow [2025-03-04 06:56:38,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:56:38,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:56:38,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 567 transitions. [2025-03-04 06:56:38,259 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8008474576271186 [2025-03-04 06:56:38,259 INFO L175 Difference]: Start difference. First operand has 114 places, 121 transitions, 348 flow. Second operand 6 states and 567 transitions. [2025-03-04 06:56:38,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 137 transitions, 498 flow [2025-03-04 06:56:38,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 137 transitions, 472 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:56:38,264 INFO L231 Difference]: Finished difference. Result has 120 places, 123 transitions, 358 flow [2025-03-04 06:56:38,265 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} [2025-03-04 06:56:38,265 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, 5 predicate places. [2025-03-04 06:56:38,265 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 123 transitions, 358 flow [2025-03-04 06:56:38,266 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) [2025-03-04 06:56:38,266 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:38,266 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] [2025-03-04 06:56:38,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-04 06:56:38,266 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting salethreadErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-03-04 06:56:38,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:38,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1846318322, now seen corresponding path program 1 times [2025-03-04 06:56:38,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:38,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015897944] [2025-03-04 06:56:38,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:38,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:38,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-04 06:56:38,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-04 06:56:38,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:38,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:38,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 06:56:38,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:38,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015897944] [2025-03-04 06:56:38,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015897944] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:38,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:38,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 06:56:38,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902968891] [2025-03-04 06:56:38,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:38,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 06:56:38,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:38,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 06:56:38,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 06:56:38,341 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 118 [2025-03-04 06:56:38,342 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) [2025-03-04 06:56:38,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:38,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 118 [2025-03-04 06:56:38,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:38,539 INFO L124 PetriNetUnfolderBase]: 224/2215 cut-off events. [2025-03-04 06:56:38,539 INFO L125 PetriNetUnfolderBase]: For 304/680 co-relation queries the response was YES. [2025-03-04 06:56:38,543 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. [2025-03-04 06:56:38,546 INFO L140 encePairwiseOnDemand]: 112/118 looper letters, 30 selfloop transitions, 6 changer transitions 0/138 dead transitions. [2025-03-04 06:56:38,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 138 transitions, 499 flow [2025-03-04 06:56:38,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 06:56:38,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 06:56:38,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 499 transitions. [2025-03-04 06:56:38,548 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8457627118644068 [2025-03-04 06:56:38,548 INFO L175 Difference]: Start difference. First operand has 120 places, 123 transitions, 358 flow. Second operand 5 states and 499 transitions. [2025-03-04 06:56:38,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 138 transitions, 499 flow [2025-03-04 06:56:38,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 138 transitions, 493 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-04 06:56:38,550 INFO L231 Difference]: Finished difference. Result has 124 places, 124 transitions, 387 flow [2025-03-04 06:56:38,551 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} [2025-03-04 06:56:38,551 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, 9 predicate places. [2025-03-04 06:56:38,551 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 124 transitions, 387 flow [2025-03-04 06:56:38,551 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) [2025-03-04 06:56:38,552 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:38,552 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] [2025-03-04 06:56:38,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-04 06:56:38,552 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting salethreadErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-03-04 06:56:38,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:38,552 INFO L85 PathProgramCache]: Analyzing trace with hash 940943050, now seen corresponding path program 1 times [2025-03-04 06:56:38,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:38,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616955450] [2025-03-04 06:56:38,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:38,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:38,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-04 06:56:38,562 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-04 06:56:38,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:38,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:56:38,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 06:56:38,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:56:38,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616955450] [2025-03-04 06:56:38,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616955450] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:56:38,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:56:38,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 06:56:38,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980636053] [2025-03-04 06:56:38,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:56:38,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 06:56:38,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:56:38,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 06:56:38,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 06:56:38,622 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 118 [2025-03-04 06:56:38,622 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) [2025-03-04 06:56:38,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:56:38,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 118 [2025-03-04 06:56:38,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:56:38,781 INFO L124 PetriNetUnfolderBase]: 204/2065 cut-off events. [2025-03-04 06:56:38,782 INFO L125 PetriNetUnfolderBase]: For 544/750 co-relation queries the response was YES. [2025-03-04 06:56:38,786 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. [2025-03-04 06:56:38,789 INFO L140 encePairwiseOnDemand]: 112/118 looper letters, 26 selfloop transitions, 7 changer transitions 0/135 dead transitions. [2025-03-04 06:56:38,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 135 transitions, 510 flow [2025-03-04 06:56:38,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 06:56:38,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 06:56:38,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 495 transitions. [2025-03-04 06:56:38,791 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8389830508474576 [2025-03-04 06:56:38,791 INFO L175 Difference]: Start difference. First operand has 124 places, 124 transitions, 387 flow. Second operand 5 states and 495 transitions. [2025-03-04 06:56:38,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 135 transitions, 510 flow [2025-03-04 06:56:38,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 135 transitions, 507 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:56:38,794 INFO L231 Difference]: Finished difference. Result has 129 places, 125 transitions, 421 flow [2025-03-04 06:56:38,794 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} [2025-03-04 06:56:38,795 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, 14 predicate places. [2025-03-04 06:56:38,795 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 125 transitions, 421 flow [2025-03-04 06:56:38,795 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) [2025-03-04 06:56:38,795 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:56:38,796 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] [2025-03-04 06:56:38,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-04 06:56:38,796 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting salethreadErr2ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-03-04 06:56:38,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:56:38,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1376818680, now seen corresponding path program 1 times [2025-03-04 06:56:38,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:56:38,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920659903] [2025-03-04 06:56:38,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:56:38,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:56:38,804 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-04 06:56:38,812 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-04 06:56:38,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:38,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:56:38,813 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 06:56:38,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-04 06:56:38,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-04 06:56:38,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:56:38,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:56:38,827 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 06:56:38,828 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 06:56:38,828 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (18 of 19 remaining) [2025-03-04 06:56:38,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2025-03-04 06:56:38,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2025-03-04 06:56:38,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2025-03-04 06:56:38,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2025-03-04 06:56:38,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2025-03-04 06:56:38,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 19 remaining) [2025-03-04 06:56:38,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2025-03-04 06:56:38,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2025-03-04 06:56:38,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2025-03-04 06:56:38,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2025-03-04 06:56:38,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 19 remaining) [2025-03-04 06:56:38,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2025-03-04 06:56:38,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2025-03-04 06:56:38,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2025-03-04 06:56:38,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2025-03-04 06:56:38,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2025-03-04 06:56:38,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2025-03-04 06:56:38,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2025-03-04 06:56:38,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-04 06:56:38,829 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:56:38,881 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2025-03-04 06:56:38,881 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 06:56:38,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 06:56:38 BasicIcfg [2025-03-04 06:56:38,886 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 06:56:38,887 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 06:56:38,887 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 06:56:38,887 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 06:56:38,887 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:56:35" (3/4) ... [2025-03-04 06:56:38,889 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-04 06:56:38,942 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 6. [2025-03-04 06:56:38,975 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 06:56:38,976 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 06:56:38,976 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 06:56:38,977 INFO L158 Benchmark]: Toolchain (without parser) took 4466.71ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 105.3MB in the beginning and 259.5MB in the end (delta: -154.1MB). Peak memory consumption was 183.8MB. Max. memory is 16.1GB. [2025-03-04 06:56:38,978 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:56:38,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.51ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 85.4MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 06:56:38,978 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.15ms. Allocated memory is still 142.6MB. Free memory was 85.4MB in the beginning and 83.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 06:56:38,978 INFO L158 Benchmark]: Boogie Preprocessor took 19.61ms. Allocated memory is still 142.6MB. Free memory was 83.8MB in the beginning and 82.8MB in the end (delta: 986.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:56:38,978 INFO L158 Benchmark]: IcfgBuilder took 331.40ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 64.1MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 06:56:38,978 INFO L158 Benchmark]: TraceAbstraction took 3706.64ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 63.1MB in the beginning and 101.8MB in the end (delta: -38.6MB). Peak memory consumption was 127.6MB. Max. memory is 16.1GB. [2025-03-04 06:56:38,978 INFO L158 Benchmark]: Witness Printer took 88.77ms. Allocated memory is still 310.4MB. Free memory was 101.8MB in the beginning and 259.5MB in the end (delta: -157.7MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2025-03-04 06:56:38,979 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.51ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 85.4MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.15ms. Allocated memory is still 142.6MB. Free memory was 85.4MB in the beginning and 83.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.61ms. Allocated memory is still 142.6MB. Free memory was 83.8MB in the beginning and 82.8MB in the end (delta: 986.0kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 331.40ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 64.1MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3706.64ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 63.1MB in the beginning and 101.8MB in the end (delta: -38.6MB). Peak memory consumption was 127.6MB. Max. memory is 16.1GB. * Witness Printer took 88.77ms. Allocated memory is still 310.4MB. Free memory was 101.8MB in the beginning and 259.5MB in the end (delta: -157.7MB). Peak memory consumption was 14.2MB. 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: 1.5s, 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, 0.2s 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, 0.6s 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: 2.0s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 276 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 166 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.3s 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, 0.0s SatisfiabilityAnalysisTime, 0.4s 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! [2025-03-04 06:56:38,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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)