./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread/sync01.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 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 ../../../trunk/examples/svcomp/pthread/sync01.c -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 b207ba781093ff4dcae5b84103210bd6f33cd57f80035ff0ba393ed7d4da1a3f --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:12:55,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:12:55,716 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:12:55,723 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:12:55,723 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:12:55,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:12:55,739 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:12:55,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:12:55,739 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:12:55,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:12:55,739 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:12:55,739 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:12:55,739 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:12:55,739 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:12:55,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:12:55,739 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:12:55,739 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:12:55,739 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:12:55,739 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:12:55,740 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:12:55,740 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:12:55,740 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:12:55,740 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:12:55,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:12:55,741 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:12:55,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:12:55,741 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:12:55,741 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:12:55,741 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:12:55,741 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 -> b207ba781093ff4dcae5b84103210bd6f33cd57f80035ff0ba393ed7d4da1a3f [2025-04-29 11:12:55,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:12:55,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:12:55,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:12:55,985 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:12:55,985 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:12:55,987 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.c [2025-04-29 11:12:57,221 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1790615c6/7cf2f602ecb649e48738ab9e51635761/FLAGdac2f96bc [2025-04-29 11:12:57,420 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:12:57,421 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.c [2025-04-29 11:12:57,422 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:12:57,423 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:12:57,423 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:12:57,429 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1790615c6/7cf2f602ecb649e48738ab9e51635761/FLAGdac2f96bc [2025-04-29 11:12:58,272 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1790615c6/7cf2f602ecb649e48738ab9e51635761 [2025-04-29 11:12:58,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:12:58,274 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:12:58,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:12:58,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:12:58,278 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:12:58,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:12:58" (1/1) ... [2025-04-29 11:12:58,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25434e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:58, skipping insertion in model container [2025-04-29 11:12:58,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:12:58" (1/1) ... [2025-04-29 11:12:58,289 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:12:58,437 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:12:58,447 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:12:58,474 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:12:58,485 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:12:58,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:58 WrapperNode [2025-04-29 11:12:58,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:12:58,487 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:12:58,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:12:58,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:12:58,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:58" (1/1) ... [2025-04-29 11:12:58,496 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:58" (1/1) ... [2025-04-29 11:12:58,507 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2025-04-29 11:12:58,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:12:58,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:12:58,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:12:58,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:12:58,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:58" (1/1) ... [2025-04-29 11:12:58,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:58" (1/1) ... [2025-04-29 11:12:58,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:58" (1/1) ... [2025-04-29 11:12:58,514 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:58" (1/1) ... [2025-04-29 11:12:58,516 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:58" (1/1) ... [2025-04-29 11:12:58,517 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:58" (1/1) ... [2025-04-29 11:12:58,518 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:58" (1/1) ... [2025-04-29 11:12:58,519 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:58" (1/1) ... [2025-04-29 11:12:58,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:58" (1/1) ... [2025-04-29 11:12:58,521 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:12:58,522 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:12:58,522 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:12:58,522 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:12:58,522 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:58" (1/1) ... [2025-04-29 11:12:58,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:12:58,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:12:58,545 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) [2025-04-29 11:12:58,546 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 [2025-04-29 11:12:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:12:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-29 11:12:58,562 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-29 11:12:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-29 11:12:58,562 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-29 11:12:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 11:12:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:12:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 11:12:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:12:58,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:12:58,563 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-29 11:12:58,615 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:12:58,616 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:12:58,725 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:12:58,725 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:12:58,751 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:12:58,751 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-04-29 11:12:58,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:12:58 BoogieIcfgContainer [2025-04-29 11:12:58,752 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:12:58,753 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:12:58,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:12:58,756 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:12:58,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:12:58" (1/3) ... [2025-04-29 11:12:58,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7dbf5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:12:58, skipping insertion in model container [2025-04-29 11:12:58,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:58" (2/3) ... [2025-04-29 11:12:58,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7dbf5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:12:58, skipping insertion in model container [2025-04-29 11:12:58,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:12:58" (3/3) ... [2025-04-29 11:12:58,757 INFO L128 eAbstractionObserver]: Analyzing ICFG sync01.c [2025-04-29 11:12:58,766 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:12:58,767 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sync01.c that has 3 procedures, 94 locations, 96 edges, 1 initial locations, 2 loop locations, and 8 error locations. [2025-04-29 11:12:58,768 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:12:58,813 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-29 11:12:58,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 98 transitions, 210 flow [2025-04-29 11:12:58,877 INFO L116 PetriNetUnfolderBase]: 5/96 cut-off events. [2025-04-29 11:12:58,878 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-29 11:12:58,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 96 events. 5/96 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 124 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2025-04-29 11:12:58,881 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 98 transitions, 210 flow [2025-04-29 11:12:58,883 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 87 transitions, 186 flow [2025-04-29 11:12:58,890 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:12:58,897 INFO L340 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;@64580d66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:12:58,897 INFO L341 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2025-04-29 11:12:58,901 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:12:58,901 INFO L116 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-04-29 11:12:58,901 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:12:58,901 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:12:58,901 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:12:58,901 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-04-29 11:12:58,905 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:12:58,905 INFO L85 PathProgramCache]: Analyzing trace with hash 2138889503, now seen corresponding path program 1 times [2025-04-29 11:12:58,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:12:58,909 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934740120] [2025-04-29 11:12:58,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:12:58,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:12:58,952 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-29 11:12:58,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-29 11:12:58,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:12:58,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:12:59,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:12:59,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:12:59,003 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934740120] [2025-04-29 11:12:59,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934740120] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:12:59,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:12:59,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:12:59,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800053446] [2025-04-29 11:12:59,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:12:59,009 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:12:59,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:12:59,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:12:59,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:12:59,074 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 98 [2025-04-29 11:12:59,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 87 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2025-04-29 11:12:59,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:12:59,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 98 [2025-04-29 11:12:59,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:12:59,161 INFO L116 PetriNetUnfolderBase]: 72/329 cut-off events. [2025-04-29 11:12:59,161 INFO L117 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2025-04-29 11:12:59,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 329 events. 72/329 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1531 event pairs, 54 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 428. Up to 149 conditions per place. [2025-04-29 11:12:59,164 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 22 selfloop transitions, 2 changer transitions 0/84 dead transitions. [2025-04-29 11:12:59,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 84 transitions, 228 flow [2025-04-29 11:12:59,165 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:12:59,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:12:59,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions. [2025-04-29 11:12:59,172 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7857142857142857 [2025-04-29 11:12:59,173 INFO L175 Difference]: Start difference. First operand has 90 places, 87 transitions, 186 flow. Second operand 3 states and 231 transitions. [2025-04-29 11:12:59,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 84 transitions, 228 flow [2025-04-29 11:12:59,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 84 transitions, 220 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-04-29 11:12:59,181 INFO L231 Difference]: Finished difference. Result has 87 places, 84 transitions, 176 flow [2025-04-29 11:12:59,182 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=87, PETRI_TRANSITIONS=84} [2025-04-29 11:12:59,187 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -3 predicate places. [2025-04-29 11:12:59,187 INFO L485 AbstractCegarLoop]: Abstraction has has 87 places, 84 transitions, 176 flow [2025-04-29 11:12:59,187 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2025-04-29 11:12:59,187 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:12:59,187 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] [2025-04-29 11:12:59,188 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:12:59,188 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-04-29 11:12:59,188 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:12:59,188 INFO L85 PathProgramCache]: Analyzing trace with hash 101496574, now seen corresponding path program 1 times [2025-04-29 11:12:59,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:12:59,188 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513018092] [2025-04-29 11:12:59,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:12:59,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:12:59,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-29 11:12:59,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-29 11:12:59,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:12:59,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:12:59,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:12:59,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:12:59,257 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513018092] [2025-04-29 11:12:59,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513018092] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:12:59,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:12:59,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:12:59,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993937761] [2025-04-29 11:12:59,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:12:59,258 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:12:59,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:12:59,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:12:59,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:12:59,291 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 98 [2025-04-29 11:12:59,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 84 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2025-04-29 11:12:59,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:12:59,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 98 [2025-04-29 11:12:59,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:12:59,394 INFO L116 PetriNetUnfolderBase]: 149/544 cut-off events. [2025-04-29 11:12:59,394 INFO L117 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2025-04-29 11:12:59,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 870 conditions, 544 events. 149/544 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3109 event pairs, 51 based on Foata normal form. 1/490 useless extension candidates. Maximal degree in co-relation 847. Up to 209 conditions per place. [2025-04-29 11:12:59,398 INFO L140 encePairwiseOnDemand]: 82/98 looper letters, 36 selfloop transitions, 10 changer transitions 2/103 dead transitions. [2025-04-29 11:12:59,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 103 transitions, 312 flow [2025-04-29 11:12:59,399 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:12:59,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:12:59,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions. [2025-04-29 11:12:59,402 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2025-04-29 11:12:59,402 INFO L175 Difference]: Start difference. First operand has 87 places, 84 transitions, 176 flow. Second operand 3 states and 245 transitions. [2025-04-29 11:12:59,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 103 transitions, 312 flow [2025-04-29 11:12:59,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 103 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:12:59,404 INFO L231 Difference]: Finished difference. Result has 88 places, 91 transitions, 253 flow [2025-04-29 11:12:59,405 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=253, PETRI_PLACES=88, PETRI_TRANSITIONS=91} [2025-04-29 11:12:59,405 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -2 predicate places. [2025-04-29 11:12:59,405 INFO L485 AbstractCegarLoop]: Abstraction has has 88 places, 91 transitions, 253 flow [2025-04-29 11:12:59,405 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2025-04-29 11:12:59,405 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:12:59,405 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] [2025-04-29 11:12:59,406 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:12:59,406 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-04-29 11:12:59,406 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:12:59,406 INFO L85 PathProgramCache]: Analyzing trace with hash -202879521, now seen corresponding path program 1 times [2025-04-29 11:12:59,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:12:59,406 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652773417] [2025-04-29 11:12:59,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:12:59,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:12:59,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-04-29 11:12:59,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-04-29 11:12:59,425 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:12:59,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:12:59,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:12:59,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:12:59,500 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652773417] [2025-04-29 11:12:59,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652773417] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:12:59,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:12:59,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-29 11:12:59,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043208958] [2025-04-29 11:12:59,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:12:59,501 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:12:59,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:12:59,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:12:59,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:12:59,520 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2025-04-29 11:12:59,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 91 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2025-04-29 11:12:59,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:12:59,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2025-04-29 11:12:59,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:12:59,549 INFO L116 PetriNetUnfolderBase]: 46/269 cut-off events. [2025-04-29 11:12:59,549 INFO L117 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2025-04-29 11:12:59,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 269 events. 46/269 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1090 event pairs, 18 based on Foata normal form. 6/257 useless extension candidates. Maximal degree in co-relation 360. Up to 50 conditions per place. [2025-04-29 11:12:59,551 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 15 selfloop transitions, 2 changer transitions 0/86 dead transitions. [2025-04-29 11:12:59,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 86 transitions, 261 flow [2025-04-29 11:12:59,551 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:12:59,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:12:59,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 241 transitions. [2025-04-29 11:12:59,552 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8197278911564626 [2025-04-29 11:12:59,552 INFO L175 Difference]: Start difference. First operand has 88 places, 91 transitions, 253 flow. Second operand 3 states and 241 transitions. [2025-04-29 11:12:59,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 86 transitions, 261 flow [2025-04-29 11:12:59,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 86 transitions, 247 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:12:59,554 INFO L231 Difference]: Finished difference. Result has 83 places, 83 transitions, 215 flow [2025-04-29 11:12:59,554 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=83, PETRI_TRANSITIONS=83} [2025-04-29 11:12:59,554 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -7 predicate places. [2025-04-29 11:12:59,555 INFO L485 AbstractCegarLoop]: Abstraction has has 83 places, 83 transitions, 215 flow [2025-04-29 11:12:59,555 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2025-04-29 11:12:59,555 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:12:59,555 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:12:59,555 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:12:59,555 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-04-29 11:12:59,556 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:12:59,556 INFO L85 PathProgramCache]: Analyzing trace with hash 672919120, now seen corresponding path program 1 times [2025-04-29 11:12:59,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:12:59,556 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425358464] [2025-04-29 11:12:59,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:12:59,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:12:59,561 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-04-29 11:12:59,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-04-29 11:12:59,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:12:59,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:12:59,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:12:59,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:12:59,587 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425358464] [2025-04-29 11:12:59,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425358464] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:12:59,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:12:59,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:12:59,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251149835] [2025-04-29 11:12:59,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:12:59,587 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:12:59,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:12:59,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:12:59,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:12:59,619 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 98 [2025-04-29 11:12:59,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 83 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2025-04-29 11:12:59,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:12:59,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 98 [2025-04-29 11:12:59,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:12:59,669 INFO L116 PetriNetUnfolderBase]: 115/416 cut-off events. [2025-04-29 11:12:59,669 INFO L117 PetriNetUnfolderBase]: For 67/76 co-relation queries the response was YES. [2025-04-29 11:12:59,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 775 conditions, 416 events. 115/416 cut-off events. For 67/76 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1905 event pairs, 41 based on Foata normal form. 4/382 useless extension candidates. Maximal degree in co-relation 667. Up to 185 conditions per place. [2025-04-29 11:12:59,672 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 26 selfloop transitions, 10 changer transitions 2/96 dead transitions. [2025-04-29 11:12:59,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 96 transitions, 330 flow [2025-04-29 11:12:59,672 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:12:59,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:12:59,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 241 transitions. [2025-04-29 11:12:59,674 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8197278911564626 [2025-04-29 11:12:59,674 INFO L175 Difference]: Start difference. First operand has 83 places, 83 transitions, 215 flow. Second operand 3 states and 241 transitions. [2025-04-29 11:12:59,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 96 transitions, 330 flow [2025-04-29 11:12:59,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 96 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:12:59,676 INFO L231 Difference]: Finished difference. Result has 85 places, 91 transitions, 297 flow [2025-04-29 11:12:59,677 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=297, PETRI_PLACES=85, PETRI_TRANSITIONS=91} [2025-04-29 11:12:59,677 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -5 predicate places. [2025-04-29 11:12:59,678 INFO L485 AbstractCegarLoop]: Abstraction has has 85 places, 91 transitions, 297 flow [2025-04-29 11:12:59,678 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2025-04-29 11:12:59,678 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:12:59,678 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] [2025-04-29 11:12:59,679 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-29 11:12:59,679 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-04-29 11:12:59,679 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:12:59,680 INFO L85 PathProgramCache]: Analyzing trace with hash -431741285, now seen corresponding path program 1 times [2025-04-29 11:12:59,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:12:59,680 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188820824] [2025-04-29 11:12:59,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:12:59,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:12:59,688 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-04-29 11:12:59,704 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-04-29 11:12:59,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:12:59,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:12:59,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:12:59,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:12:59,840 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188820824] [2025-04-29 11:12:59,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188820824] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:12:59,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:12:59,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:12:59,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036455063] [2025-04-29 11:12:59,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:12:59,841 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-29 11:12:59,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:12:59,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-29 11:12:59,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-29 11:12:59,878 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 98 [2025-04-29 11:12:59,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 91 transitions, 297 flow. Second operand has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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) [2025-04-29 11:12:59,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:12:59,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 98 [2025-04-29 11:12:59,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:12:59,931 INFO L116 PetriNetUnfolderBase]: 63/309 cut-off events. [2025-04-29 11:12:59,931 INFO L117 PetriNetUnfolderBase]: For 111/118 co-relation queries the response was YES. [2025-04-29 11:12:59,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 309 events. 63/309 cut-off events. For 111/118 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1357 event pairs, 15 based on Foata normal form. 12/301 useless extension candidates. Maximal degree in co-relation 531. Up to 75 conditions per place. [2025-04-29 11:12:59,932 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 16 selfloop transitions, 7 changer transitions 0/96 dead transitions. [2025-04-29 11:12:59,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 96 transitions, 354 flow [2025-04-29 11:12:59,932 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-29 11:12:59,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-29 11:12:59,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 376 transitions. [2025-04-29 11:12:59,933 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7673469387755102 [2025-04-29 11:12:59,933 INFO L175 Difference]: Start difference. First operand has 85 places, 91 transitions, 297 flow. Second operand 5 states and 376 transitions. [2025-04-29 11:12:59,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 96 transitions, 354 flow [2025-04-29 11:12:59,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 96 transitions, 328 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-04-29 11:12:59,935 INFO L231 Difference]: Finished difference. Result has 89 places, 94 transitions, 311 flow [2025-04-29 11:12:59,936 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=311, PETRI_PLACES=89, PETRI_TRANSITIONS=94} [2025-04-29 11:12:59,936 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -1 predicate places. [2025-04-29 11:12:59,936 INFO L485 AbstractCegarLoop]: Abstraction has has 89 places, 94 transitions, 311 flow [2025-04-29 11:12:59,936 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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) [2025-04-29 11:12:59,936 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:12:59,937 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] [2025-04-29 11:12:59,937 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-29 11:12:59,937 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-04-29 11:12:59,937 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:12:59,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1972657261, now seen corresponding path program 2 times [2025-04-29 11:12:59,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:12:59,937 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326234841] [2025-04-29 11:12:59,937 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:12:59,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:12:59,943 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 45 statements into 1 equivalence classes. [2025-04-29 11:12:59,945 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-04-29 11:12:59,945 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:12:59,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:13:00,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:13:00,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:13:00,029 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326234841] [2025-04-29 11:13:00,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326234841] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:13:00,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:13:00,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:13:00,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565030760] [2025-04-29 11:13:00,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:13:00,029 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-29 11:13:00,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:13:00,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-29 11:13:00,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-29 11:13:00,056 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 98 [2025-04-29 11:13:00,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 94 transitions, 311 flow. Second operand has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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) [2025-04-29 11:13:00,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:13:00,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 98 [2025-04-29 11:13:00,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:13:00,110 INFO L116 PetriNetUnfolderBase]: 8/113 cut-off events. [2025-04-29 11:13:00,110 INFO L117 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2025-04-29 11:13:00,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 113 events. 8/113 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 156 event pairs, 1 based on Foata normal form. 2/114 useless extension candidates. Maximal degree in co-relation 139. Up to 13 conditions per place. [2025-04-29 11:13:00,110 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 11 selfloop transitions, 10 changer transitions 8/80 dead transitions. [2025-04-29 11:13:00,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 80 transitions, 280 flow [2025-04-29 11:13:00,111 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-29 11:13:00,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-29 11:13:00,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 375 transitions. [2025-04-29 11:13:00,111 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7653061224489796 [2025-04-29 11:13:00,111 INFO L175 Difference]: Start difference. First operand has 89 places, 94 transitions, 311 flow. Second operand 5 states and 375 transitions. [2025-04-29 11:13:00,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 80 transitions, 280 flow [2025-04-29 11:13:00,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 80 transitions, 256 flow, removed 8 selfloop flow, removed 4 redundant places. [2025-04-29 11:13:00,113 INFO L231 Difference]: Finished difference. Result has 86 places, 70 transitions, 208 flow [2025-04-29 11:13:00,113 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=208, PETRI_PLACES=86, PETRI_TRANSITIONS=70} [2025-04-29 11:13:00,113 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -4 predicate places. [2025-04-29 11:13:00,114 INFO L485 AbstractCegarLoop]: Abstraction has has 86 places, 70 transitions, 208 flow [2025-04-29 11:13:00,114 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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) [2025-04-29 11:13:00,114 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:13:00,114 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:13:00,114 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-29 11:13:00,114 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2025-04-29 11:13:00,114 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:13:00,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1522739866, now seen corresponding path program 1 times [2025-04-29 11:13:00,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:13:00,114 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787897191] [2025-04-29 11:13:00,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:13:00,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:13:00,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-04-29 11:13:00,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-04-29 11:13:00,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:13:00,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:13:00,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:13:00,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:13:00,156 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787897191] [2025-04-29 11:13:00,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787897191] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:13:00,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:13:00,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:13:00,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825024525] [2025-04-29 11:13:00,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:13:00,157 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:13:00,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:13:00,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:13:00,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:13:00,198 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 98 [2025-04-29 11:13:00,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 70 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2025-04-29 11:13:00,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:13:00,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 98 [2025-04-29 11:13:00,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:13:00,215 INFO L116 PetriNetUnfolderBase]: 8/104 cut-off events. [2025-04-29 11:13:00,215 INFO L117 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2025-04-29 11:13:00,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 104 events. 8/104 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 156 event pairs, 4 based on Foata normal form. 1/103 useless extension candidates. Maximal degree in co-relation 130. Up to 36 conditions per place. [2025-04-29 11:13:00,216 INFO L140 encePairwiseOnDemand]: 96/98 looper letters, 0 selfloop transitions, 0 changer transitions 69/69 dead transitions. [2025-04-29 11:13:00,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 69 transitions, 246 flow [2025-04-29 11:13:00,216 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:13:00,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:13:00,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2025-04-29 11:13:00,217 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7687074829931972 [2025-04-29 11:13:00,217 INFO L175 Difference]: Start difference. First operand has 86 places, 70 transitions, 208 flow. Second operand 3 states and 226 transitions. [2025-04-29 11:13:00,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 69 transitions, 246 flow [2025-04-29 11:13:00,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 69 transitions, 216 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-04-29 11:13:00,218 INFO L231 Difference]: Finished difference. Result has 75 places, 0 transitions, 0 flow [2025-04-29 11:13:00,218 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=75, PETRI_TRANSITIONS=0} [2025-04-29 11:13:00,218 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -15 predicate places. [2025-04-29 11:13:00,218 INFO L485 AbstractCegarLoop]: Abstraction has has 75 places, 0 transitions, 0 flow [2025-04-29 11:13:00,218 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2025-04-29 11:13:00,220 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (15 of 16 remaining) [2025-04-29 11:13:00,220 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2025-04-29 11:13:00,220 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2025-04-29 11:13:00,220 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2025-04-29 11:13:00,220 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2025-04-29 11:13:00,222 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2025-04-29 11:13:00,222 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2025-04-29 11:13:00,222 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2025-04-29 11:13:00,222 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 16 remaining) [2025-04-29 11:13:00,222 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 16 remaining) [2025-04-29 11:13:00,222 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2025-04-29 11:13:00,222 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2025-04-29 11:13:00,223 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2025-04-29 11:13:00,223 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2025-04-29 11:13:00,223 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2025-04-29 11:13:00,223 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2025-04-29 11:13:00,223 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-29 11:13:00,223 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2025-04-29 11:13:00,226 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:13:00,226 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:13:00,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:13:00 BasicIcfg [2025-04-29 11:13:00,232 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:13:00,232 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:13:00,232 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:13:00,232 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:13:00,233 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:12:58" (3/4) ... [2025-04-29 11:13:00,233 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-29 11:13:00,237 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-04-29 11:13:00,237 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-04-29 11:13:00,240 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-04-29 11:13:00,240 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-04-29 11:13:00,240 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-29 11:13:00,285 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:13:00,285 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:13:00,286 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:13:00,286 INFO L158 Benchmark]: Toolchain (without parser) took 2011.64ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 94.8MB in the end (delta: 11.5MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2025-04-29 11:13:00,286 INFO L158 Benchmark]: CDTParser took 1.44ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:13:00,286 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.00ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 92.6MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:13:00,286 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.61ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 91.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:13:00,286 INFO L158 Benchmark]: Boogie Preprocessor took 12.77ms. Allocated memory is still 142.6MB. Free memory was 91.4MB in the beginning and 90.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:13:00,287 INFO L158 Benchmark]: RCFGBuilder took 230.24ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 74.6MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:13:00,287 INFO L158 Benchmark]: TraceAbstraction took 1478.75ms. Allocated memory is still 142.6MB. Free memory was 74.6MB in the beginning and 100.1MB in the end (delta: -25.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:13:00,287 INFO L158 Benchmark]: Witness Printer took 53.34ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 94.8MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:13:00,287 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.44ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 211.00ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 92.6MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.61ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 91.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.77ms. Allocated memory is still 142.6MB. Free memory was 91.4MB in the beginning and 90.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 230.24ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 74.6MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1478.75ms. Allocated memory is still 142.6MB. Free memory was 74.6MB in the beginning and 100.1MB in the end (delta: -25.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 53.34ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 94.8MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 28]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 28]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 146 locations, 154 edges, 16 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: 1.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 327 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 485 IncrementalHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 95 mSDtfsCounter, 485 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=5, InterpolantAutomatonStates: 25, 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, 0.4s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 259 ConstructedInterpolants, 0 QuantifiedInterpolants, 458 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-29 11:13:00,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE