./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cdf629ba70521b99830442583c87012a34d164ca28f01f7e59d76ae2f1e525ff --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:21:24,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:21:24,714 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:21:24,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:21:24,723 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:21:24,744 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:21:24,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:21:24,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:21:24,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:21:24,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:21:24,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:21:24,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:21:24,746 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:21:24,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:21:24,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:21:24,746 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:21:24,747 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:21:24,747 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:21:24,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:21:24,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:21:24,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:21:24,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:21:24,747 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:21:24,748 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:21:24,748 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:21:24,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:21:24,748 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:21:24,748 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:21:24,748 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:21:24,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:21:24,748 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:21:24,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:21:24,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:21:24,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:21:24,748 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:21:24,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:21:24,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:21:24,749 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:21:24,749 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:21:24,749 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:21:24,749 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:21:24,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:21:24,750 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:21:24,750 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:21:24,750 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:21:24,750 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:21:24,750 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdf629ba70521b99830442583c87012a34d164ca28f01f7e59d76ae2f1e525ff [2025-01-09 21:21:25,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:21:25,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:21:25,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:21:25,017 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:21:25,018 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:21:25,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i [2025-01-09 21:21:26,233 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aad6fc666/0cda9e22eeee4e55a2c886e7cca2b8de/FLAG8a496fc45 [2025-01-09 21:21:26,528 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:21:26,528 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i [2025-01-09 21:21:26,538 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aad6fc666/0cda9e22eeee4e55a2c886e7cca2b8de/FLAG8a496fc45 [2025-01-09 21:21:26,549 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aad6fc666/0cda9e22eeee4e55a2c886e7cca2b8de [2025-01-09 21:21:26,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:21:26,552 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:21:26,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:21:26,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:21:26,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:21:26,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:21:26" (1/1) ... [2025-01-09 21:21:26,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400d5c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:26, skipping insertion in model container [2025-01-09 21:21:26,557 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:21:26" (1/1) ... [2025-01-09 21:21:26,589 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:21:26,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:21:26,813 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:21:26,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:21:26,879 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:21:26,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:26 WrapperNode [2025-01-09 21:21:26,880 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:21:26,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:21:26,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:21:26,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:21:26,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:26" (1/1) ... [2025-01-09 21:21:26,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:26" (1/1) ... [2025-01-09 21:21:26,901 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2025-01-09 21:21:26,901 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:21:26,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:21:26,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:21:26,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:21:26,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:26" (1/1) ... [2025-01-09 21:21:26,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:26" (1/1) ... [2025-01-09 21:21:26,909 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:26" (1/1) ... [2025-01-09 21:21:26,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:26" (1/1) ... [2025-01-09 21:21:26,917 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:26" (1/1) ... [2025-01-09 21:21:26,918 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:26" (1/1) ... [2025-01-09 21:21:26,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:26" (1/1) ... [2025-01-09 21:21:26,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:26" (1/1) ... [2025-01-09 21:21:26,920 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:26" (1/1) ... [2025-01-09 21:21:26,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:21:26,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:21:26,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:21:26,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:21:26,930 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:26" (1/1) ... [2025-01-09 21:21:26,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:21:26,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:21:26,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:21:26,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:21:26,982 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2025-01-09 21:21:26,982 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2025-01-09 21:21:26,983 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-01-09 21:21:26,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-01-09 21:21:26,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:21:26,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:21:26,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:21:26,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:21:26,984 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:21:27,066 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:21:27,068 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:21:27,184 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:21:27,184 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:21:27,191 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:21:27,192 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 21:21:27,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:21:27 BoogieIcfgContainer [2025-01-09 21:21:27,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:21:27,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:21:27,194 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:21:27,197 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:21:27,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:21:26" (1/3) ... [2025-01-09 21:21:27,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177280b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:21:27, skipping insertion in model container [2025-01-09 21:21:27,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:26" (2/3) ... [2025-01-09 21:21:27,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177280b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:21:27, skipping insertion in model container [2025-01-09 21:21:27,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:21:27" (3/3) ... [2025-01-09 21:21:27,199 INFO L128 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i [2025-01-09 21:21:27,212 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:21:27,215 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG nondet-loop-bound-1.i that has 3 procedures, 106 locations, 1 initial locations, 1 loop locations, and 9 error locations. [2025-01-09 21:21:27,216 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:21:27,261 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:21:27,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 111 transitions, 230 flow [2025-01-09 21:21:27,335 INFO L124 PetriNetUnfolderBase]: 6/124 cut-off events. [2025-01-09 21:21:27,336 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:21:27,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 124 events. 6/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 171 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 92. Up to 4 conditions per place. [2025-01-09 21:21:27,341 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 111 transitions, 230 flow [2025-01-09 21:21:27,348 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 110 transitions, 227 flow [2025-01-09 21:21:27,355 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:21:27,366 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;@63b5fc20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:21:27,366 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-01-09 21:21:27,380 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:21:27,380 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2025-01-09 21:21:27,381 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:21:27,381 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:27,381 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:21:27,381 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-01-09 21:21:27,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:27,396 INFO L85 PathProgramCache]: Analyzing trace with hash -838376666, now seen corresponding path program 1 times [2025-01-09 21:21:27,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:27,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361826795] [2025-01-09 21:21:27,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:27,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:27,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-09 21:21:27,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-09 21:21:27,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:27,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:21:27,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:21:27,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:21:27,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361826795] [2025-01-09 21:21:27,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361826795] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:21:27,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:21:27,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:21:27,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029157376] [2025-01-09 21:21:27,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:21:27,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:21:27,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:21:27,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:21:27,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:21:27,631 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 111 [2025-01-09 21:21:27,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 110 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2025-01-09 21:21:27,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:21:27,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 111 [2025-01-09 21:21:27,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:21:27,737 INFO L124 PetriNetUnfolderBase]: 12/229 cut-off events. [2025-01-09 21:21:27,739 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-01-09 21:21:27,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 229 events. 12/229 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 782 event pairs, 11 based on Foata normal form. 18/205 useless extension candidates. Maximal degree in co-relation 209. Up to 31 conditions per place. [2025-01-09 21:21:27,742 INFO L140 encePairwiseOnDemand]: 104/111 looper letters, 9 selfloop transitions, 2 changer transitions 1/103 dead transitions. [2025-01-09 21:21:27,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 103 transitions, 235 flow [2025-01-09 21:21:27,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:21:27,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:21:27,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2025-01-09 21:21:27,755 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8948948948948949 [2025-01-09 21:21:27,757 INFO L175 Difference]: Start difference. First operand has 111 places, 110 transitions, 227 flow. Second operand 3 states and 298 transitions. [2025-01-09 21:21:27,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 103 transitions, 235 flow [2025-01-09 21:21:27,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 103 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:21:27,765 INFO L231 Difference]: Finished difference. Result has 109 places, 102 transitions, 214 flow [2025-01-09 21:21:27,766 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=109, PETRI_TRANSITIONS=102} [2025-01-09 21:21:27,770 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, -2 predicate places. [2025-01-09 21:21:27,771 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 102 transitions, 214 flow [2025-01-09 21:21:27,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2025-01-09 21:21:27,772 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:27,772 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:21:27,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:21:27,776 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-01-09 21:21:27,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:27,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1954590056, now seen corresponding path program 1 times [2025-01-09 21:21:27,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:27,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924455943] [2025-01-09 21:21:27,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:27,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:27,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-09 21:21:27,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-09 21:21:27,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:27,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:21:27,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:21:27,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:21:27,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924455943] [2025-01-09 21:21:27,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924455943] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:21:27,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:21:27,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:21:27,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866711091] [2025-01-09 21:21:27,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:21:27,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:21:27,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:21:27,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:21:27,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:21:27,866 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 111 [2025-01-09 21:21:27,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 102 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2025-01-09 21:21:27,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:21:27,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 111 [2025-01-09 21:21:27,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:21:27,914 INFO L124 PetriNetUnfolderBase]: 6/165 cut-off events. [2025-01-09 21:21:27,914 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-09 21:21:27,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 165 events. 6/165 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 436 event pairs, 5 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 174. Up to 23 conditions per place. [2025-01-09 21:21:27,920 INFO L140 encePairwiseOnDemand]: 108/111 looper letters, 10 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2025-01-09 21:21:27,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 101 transitions, 236 flow [2025-01-09 21:21:27,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:21:27,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:21:27,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2025-01-09 21:21:27,925 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8768768768768769 [2025-01-09 21:21:27,925 INFO L175 Difference]: Start difference. First operand has 109 places, 102 transitions, 214 flow. Second operand 3 states and 292 transitions. [2025-01-09 21:21:27,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 101 transitions, 236 flow [2025-01-09 21:21:27,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 101 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:21:27,928 INFO L231 Difference]: Finished difference. Result has 107 places, 101 transitions, 212 flow [2025-01-09 21:21:27,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=107, PETRI_TRANSITIONS=101} [2025-01-09 21:21:27,928 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, -4 predicate places. [2025-01-09 21:21:27,928 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 101 transitions, 212 flow [2025-01-09 21:21:27,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2025-01-09 21:21:27,933 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:27,934 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] [2025-01-09 21:21:27,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:21:27,934 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-01-09 21:21:27,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:27,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1079328613, now seen corresponding path program 1 times [2025-01-09 21:21:27,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:27,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481501291] [2025-01-09 21:21:27,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:27,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:27,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-09 21:21:27,949 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-09 21:21:27,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:27,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:21:27,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:21:27,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:21:27,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481501291] [2025-01-09 21:21:27,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481501291] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:21:27,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:21:27,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:21:27,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9111333] [2025-01-09 21:21:27,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:21:27,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:21:27,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:21:27,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:21:27,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:21:27,999 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 111 [2025-01-09 21:21:27,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 101 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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) [2025-01-09 21:21:28,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:21:28,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 111 [2025-01-09 21:21:28,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:21:28,033 INFO L124 PetriNetUnfolderBase]: 11/217 cut-off events. [2025-01-09 21:21:28,033 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-01-09 21:21:28,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 217 events. 11/217 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 785 event pairs, 10 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 230. Up to 32 conditions per place. [2025-01-09 21:21:28,037 INFO L140 encePairwiseOnDemand]: 106/111 looper letters, 10 selfloop transitions, 1 changer transitions 0/97 dead transitions. [2025-01-09 21:21:28,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 97 transitions, 226 flow [2025-01-09 21:21:28,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:21:28,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:21:28,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2025-01-09 21:21:28,039 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8648648648648649 [2025-01-09 21:21:28,039 INFO L175 Difference]: Start difference. First operand has 107 places, 101 transitions, 212 flow. Second operand 3 states and 288 transitions. [2025-01-09 21:21:28,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 97 transitions, 226 flow [2025-01-09 21:21:28,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 97 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:21:28,041 INFO L231 Difference]: Finished difference. Result has 103 places, 97 transitions, 202 flow [2025-01-09 21:21:28,041 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=103, PETRI_TRANSITIONS=97} [2025-01-09 21:21:28,042 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, -8 predicate places. [2025-01-09 21:21:28,042 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 97 transitions, 202 flow [2025-01-09 21:21:28,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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) [2025-01-09 21:21:28,042 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:28,042 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] [2025-01-09 21:21:28,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:21:28,043 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-01-09 21:21:28,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:28,043 INFO L85 PathProgramCache]: Analyzing trace with hash 872283948, now seen corresponding path program 1 times [2025-01-09 21:21:28,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:28,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388072788] [2025-01-09 21:21:28,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:28,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:28,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-09 21:21:28,079 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-09 21:21:28,080 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:28,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:21:28,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:21:28,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:21:28,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388072788] [2025-01-09 21:21:28,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388072788] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:21:28,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:21:28,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:21:28,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133829211] [2025-01-09 21:21:28,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:21:28,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:21:28,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:21:28,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:21:28,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:21:28,158 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2025-01-09 21:21:28,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 97 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2025-01-09 21:21:28,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:21:28,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2025-01-09 21:21:28,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:21:28,188 INFO L124 PetriNetUnfolderBase]: 8/175 cut-off events. [2025-01-09 21:21:28,189 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-01-09 21:21:28,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 175 events. 8/175 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 483 event pairs, 2 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 180. Up to 19 conditions per place. [2025-01-09 21:21:28,191 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 9 selfloop transitions, 4 changer transitions 0/100 dead transitions. [2025-01-09 21:21:28,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 100 transitions, 237 flow [2025-01-09 21:21:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:21:28,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:21:28,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2025-01-09 21:21:28,192 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9099099099099099 [2025-01-09 21:21:28,193 INFO L175 Difference]: Start difference. First operand has 103 places, 97 transitions, 202 flow. Second operand 3 states and 303 transitions. [2025-01-09 21:21:28,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 100 transitions, 237 flow [2025-01-09 21:21:28,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 100 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:21:28,198 INFO L231 Difference]: Finished difference. Result has 105 places, 99 transitions, 229 flow [2025-01-09 21:21:28,198 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=105, PETRI_TRANSITIONS=99} [2025-01-09 21:21:28,199 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, -6 predicate places. [2025-01-09 21:21:28,199 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 99 transitions, 229 flow [2025-01-09 21:21:28,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2025-01-09 21:21:28,199 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:28,199 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, 1, 1, 1, 1] [2025-01-09 21:21:28,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:21:28,200 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-01-09 21:21:28,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:28,200 INFO L85 PathProgramCache]: Analyzing trace with hash 742494978, now seen corresponding path program 1 times [2025-01-09 21:21:28,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:28,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547706759] [2025-01-09 21:21:28,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:28,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:28,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-01-09 21:21:28,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-01-09 21:21:28,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:28,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:21:28,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:21:28,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:21:28,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547706759] [2025-01-09 21:21:28,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547706759] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:21:28,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:21:28,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:21:28,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237629078] [2025-01-09 21:21:28,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:21:28,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:21:28,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:21:28,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:21:28,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:21:28,272 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2025-01-09 21:21:28,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 99 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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) [2025-01-09 21:21:28,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:21:28,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2025-01-09 21:21:28,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:21:28,306 INFO L124 PetriNetUnfolderBase]: 7/210 cut-off events. [2025-01-09 21:21:28,306 INFO L125 PetriNetUnfolderBase]: For 23/25 co-relation queries the response was YES. [2025-01-09 21:21:28,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 210 events. 7/210 cut-off events. For 23/25 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 678 event pairs, 2 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 247. Up to 23 conditions per place. [2025-01-09 21:21:28,307 INFO L140 encePairwiseOnDemand]: 106/111 looper letters, 11 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2025-01-09 21:21:28,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 102 transitions, 269 flow [2025-01-09 21:21:28,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:21:28,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:21:28,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2025-01-09 21:21:28,309 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9069069069069069 [2025-01-09 21:21:28,309 INFO L175 Difference]: Start difference. First operand has 105 places, 99 transitions, 229 flow. Second operand 3 states and 302 transitions. [2025-01-09 21:21:28,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 102 transitions, 269 flow [2025-01-09 21:21:28,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 102 transitions, 259 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:21:28,310 INFO L231 Difference]: Finished difference. Result has 107 places, 102 transitions, 253 flow [2025-01-09 21:21:28,311 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=253, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2025-01-09 21:21:28,311 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, -4 predicate places. [2025-01-09 21:21:28,311 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 253 flow [2025-01-09 21:21:28,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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) [2025-01-09 21:21:28,312 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:28,312 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, 1, 1, 1, 1, 1, 1] [2025-01-09 21:21:28,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:21:28,312 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-01-09 21:21:28,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:28,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1679893127, now seen corresponding path program 1 times [2025-01-09 21:21:28,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:28,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085348405] [2025-01-09 21:21:28,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:28,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:28,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-01-09 21:21:28,366 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-01-09 21:21:28,369 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:28,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:21:28,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:21:28,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:21:28,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085348405] [2025-01-09 21:21:28,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085348405] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:21:28,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:21:28,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:21:28,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232940417] [2025-01-09 21:21:28,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:21:28,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 21:21:28,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:21:28,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 21:21:28,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 21:21:28,487 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 111 [2025-01-09 21:21:28,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 102 transitions, 253 flow. Second operand has 5 states, 5 states have (on average 92.4) internal successors, (462), 5 states have internal predecessors, (462), 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) [2025-01-09 21:21:28,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:21:28,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 111 [2025-01-09 21:21:28,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:21:28,550 INFO L124 PetriNetUnfolderBase]: 4/197 cut-off events. [2025-01-09 21:21:28,551 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2025-01-09 21:21:28,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 197 events. 4/197 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 575 event pairs, 1 based on Foata normal form. 1/186 useless extension candidates. Maximal degree in co-relation 236. Up to 16 conditions per place. [2025-01-09 21:21:28,552 INFO L140 encePairwiseOnDemand]: 107/111 looper letters, 14 selfloop transitions, 0 changer transitions 4/105 dead transitions. [2025-01-09 21:21:28,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 105 transitions, 295 flow [2025-01-09 21:21:28,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 21:21:28,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-09 21:21:28,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 469 transitions. [2025-01-09 21:21:28,555 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8450450450450451 [2025-01-09 21:21:28,555 INFO L175 Difference]: Start difference. First operand has 107 places, 102 transitions, 253 flow. Second operand 5 states and 469 transitions. [2025-01-09 21:21:28,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 105 transitions, 295 flow [2025-01-09 21:21:28,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 105 transitions, 287 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:21:28,557 INFO L231 Difference]: Finished difference. Result has 112 places, 101 transitions, 249 flow [2025-01-09 21:21:28,557 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=249, PETRI_PLACES=112, PETRI_TRANSITIONS=101} [2025-01-09 21:21:28,559 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, 1 predicate places. [2025-01-09 21:21:28,559 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 101 transitions, 249 flow [2025-01-09 21:21:28,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.4) internal successors, (462), 5 states have internal predecessors, (462), 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) [2025-01-09 21:21:28,560 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:28,560 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:21:28,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 21:21:28,560 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-01-09 21:21:28,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:28,562 INFO L85 PathProgramCache]: Analyzing trace with hash 705825887, now seen corresponding path program 1 times [2025-01-09 21:21:28,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:28,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643484636] [2025-01-09 21:21:28,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:28,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:28,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-09 21:21:28,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-09 21:21:28,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:28,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:21:28,583 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:21:28,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-09 21:21:28,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-09 21:21:28,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:28,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:21:28,609 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:21:28,609 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:21:28,610 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2025-01-09 21:21:28,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2025-01-09 21:21:28,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2025-01-09 21:21:28,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2025-01-09 21:21:28,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2025-01-09 21:21:28,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2025-01-09 21:21:28,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2025-01-09 21:21:28,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2025-01-09 21:21:28,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2025-01-09 21:21:28,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2025-01-09 21:21:28,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 15 remaining) [2025-01-09 21:21:28,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 15 remaining) [2025-01-09 21:21:28,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2025-01-09 21:21:28,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2025-01-09 21:21:28,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2025-01-09 21:21:28,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 21:21:28,613 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:21:28,648 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-09 21:21:28,648 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 21:21:28,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 09:21:28 BasicIcfg [2025-01-09 21:21:28,654 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 21:21:28,655 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 21:21:28,655 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 21:21:28,655 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 21:21:28,655 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:21:27" (3/4) ... [2025-01-09 21:21:28,656 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-01-09 21:21:28,704 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 5. [2025-01-09 21:21:28,732 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 21:21:28,733 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 21:21:28,733 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 21:21:28,733 INFO L158 Benchmark]: Toolchain (without parser) took 2181.23ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 62.1MB in the end (delta: 49.5MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. [2025-01-09 21:21:28,733 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:21:28,734 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.87ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 92.4MB in the end (delta: 19.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 21:21:28,734 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.59ms. Allocated memory is still 142.6MB. Free memory was 92.4MB in the beginning and 90.2MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:21:28,734 INFO L158 Benchmark]: Boogie Preprocessor took 26.54ms. Allocated memory is still 142.6MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:21:28,734 INFO L158 Benchmark]: RCFGBuilder took 263.74ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 75.6MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 21:21:28,734 INFO L158 Benchmark]: TraceAbstraction took 1460.48ms. Allocated memory is still 142.6MB. Free memory was 74.5MB in the beginning and 73.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:21:28,735 INFO L158 Benchmark]: Witness Printer took 78.32ms. Allocated memory is still 142.6MB. Free memory was 73.4MB in the beginning and 62.1MB in the end (delta: 11.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 21:21:28,736 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 126.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.87ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 92.4MB in the end (delta: 19.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.59ms. Allocated memory is still 142.6MB. Free memory was 92.4MB in the beginning and 90.2MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.54ms. Allocated memory is still 142.6MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 263.74ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 75.6MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1460.48ms. Allocated memory is still 142.6MB. Free memory was 74.5MB in the beginning and 73.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 78.32ms. Allocated memory is still 142.6MB. Free memory was 73.4MB in the beginning and 62.1MB in the end (delta: 11.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L690] 0 volatile int x; VAL [x=0] [L691] 0 volatile int n; VAL [n=0, x=0] [L701] 0 pthread_t t1, t2; VAL [\old(argc)=52, \old(argv)={53:51}, argc=52, n=0, x=0] [L702] 0 int i; VAL [\old(argc)=52, \old(argv)={53:51}, argc=52, n=0, x=0] [L703] 0 x = 0 VAL [\old(argc)=52, \old(argv)={53:51}, argc=52, n=0, x=0] [L704] 0 n = __VERIFIER_nondet_uint() VAL [\old(argc)=52, \old(argv)={53:51}, argc=52, n=39, x=0] [L705] EXPR 0 n >= 20 VAL [\old(argc)=52, \old(argv)={53:51}, argc=52, n=39, x=0] [L705] EXPR 0 n >= 20 && n < 40 VAL [\old(argc)=52, \old(argv)={53:51}, argc=52, n=39, x=0] [L705] EXPR 0 n < 40 VAL [\old(argc)=52, \old(argv)={53:51}, argc=52, n=39, x=0] [L705] EXPR 0 n >= 20 && n < 40 VAL [\old(argc)=52, \old(argv)={53:51}, argc=52, n=39, x=0] [L705] CALL 0 assume_abort_if_not(n >= 20 && n < 40) [L687] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, n=39, x=0] [L705] RET 0 assume_abort_if_not(n >= 20 && n < 40) [L706] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=52, \old(argv)={53:51}, argc=52, n=39, t1=-1, x=0] [L707] 0 i = 0 VAL [\old(argc)=52, \old(argv)={53:51}, argc=52, i=0, n=39, t1=-1, x=0] [L707] 0 i < n VAL [\old(argc)=52, \old(argv)={53:51}, argc=52, i=0, n=39, t1=-1, x=0] [L707] COND TRUE 0 i < n VAL [\old(argc)=52, \old(argv)={53:51}, argc=52, i=0, n=39, t1=-1, x=0] [L708] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(arg)={0:0}, \old(argc)=52, \old(argv)={53:51}, argc=52, i=0, n=39, t1=-1, t2=0, x=0] [L696] 2 int t; VAL [\old(arg)={0:0}, arg={0:0}, n=39, x=0] [L693] 1 x < n VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, n=39, x=0] [L697] 2 t = x VAL [\old(arg)={0:0}, arg={0:0}, n=39, t=0, x=0] [L698] 2 x = t + 1 VAL [\old(arg)={0:0}, arg={0:0}, n=39, t=0, x=1] [L693] 1 x < n VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, n=39, t=0, x=1] Now there is a data race on ~x~0 between C: x = t + 1 [698] and C: x < n [693] - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: 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. - UnprovableResult [Line: 708]: 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 5 procedures, 142 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: 1.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 27 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=253occurred in iteration=5, InterpolantAutomatonStates: 20, 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, 0.3s InterpolantComputationTime, 308 NumberOfCodeBlocks, 308 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 236 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-01-09 21:21:28,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)