./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/stateful01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 44c38e66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread/stateful01-1.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 --- Real Ultimate output --- This is Ultimate 0.3.0-?-44c38e6-m [2025-04-24 18:36:15,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 18:36:15,364 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 18:36:15,372 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 18:36:15,372 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 18:36:15,392 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 18:36:15,393 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 18:36:15,394 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 18:36:15,394 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 18:36:15,394 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 18:36:15,395 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 18:36:15,395 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 18:36:15,395 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 18:36:15,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 18:36:15,396 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 18:36:15,396 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 18:36:15,396 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 18:36:15,396 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 18:36:15,396 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 18:36:15,396 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 18:36:15,396 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 18:36:15,396 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 18:36:15,396 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 18:36:15,396 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 18:36:15,396 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 18:36:15,397 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 18:36:15,397 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 18:36:15,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 18:36:15,397 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 18:36:15,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 18:36:15,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 18:36:15,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 18:36:15,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 18:36:15,397 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 18:36:15,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 18:36:15,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 18:36:15,398 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 18:36:15,398 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 18:36:15,398 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 18:36:15,398 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 18:36:15,398 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 18:36:15,398 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 18:36:15,398 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 18:36:15,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 18:36:15,398 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 18:36:15,399 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 18:36:15,399 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 18:36:15,399 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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 ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter 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 -> 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 [2025-04-24 18:36:15,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 18:36:15,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 18:36:15,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 18:36:15,657 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 18:36:15,658 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 18:36:15,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread/stateful01-1.i [2025-04-24 18:36:16,966 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7368fa4db/f505b942952d4ec28bb5f70d06922274/FLAGff902d951 [2025-04-24 18:36:17,193 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 18:36:17,194 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/stateful01-1.i [2025-04-24 18:36:17,206 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7368fa4db/f505b942952d4ec28bb5f70d06922274/FLAGff902d951 [2025-04-24 18:36:17,968 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7368fa4db/f505b942952d4ec28bb5f70d06922274 [2025-04-24 18:36:17,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 18:36:17,971 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 18:36:17,971 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 18:36:17,972 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 18:36:17,974 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 18:36:17,975 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 06:36:17" (1/1) ... [2025-04-24 18:36:17,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ab4c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:36:17, skipping insertion in model container [2025-04-24 18:36:17,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 06:36:17" (1/1) ... [2025-04-24 18:36:17,999 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 18:36:18,280 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/stateful01-1.i[30826,30839] [2025-04-24 18:36:18,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 18:36:18,298 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 18:36:18,348 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/stateful01-1.i[30826,30839] [2025-04-24 18:36:18,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 18:36:18,377 INFO L204 MainTranslator]: Completed translation [2025-04-24 18:36:18,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:36:18 WrapperNode [2025-04-24 18:36:18,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 18:36:18,380 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 18:36:18,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 18:36:18,380 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 18:36:18,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:36:18" (1/1) ... [2025-04-24 18:36:18,398 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:36:18" (1/1) ... [2025-04-24 18:36:18,414 INFO L138 Inliner]: procedures = 168, calls = 28, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50 [2025-04-24 18:36:18,415 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 18:36:18,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 18:36:18,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 18:36:18,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 18:36:18,422 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:36:18" (1/1) ... [2025-04-24 18:36:18,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:36:18" (1/1) ... [2025-04-24 18:36:18,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:36:18" (1/1) ... [2025-04-24 18:36:18,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:36:18" (1/1) ... [2025-04-24 18:36:18,428 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:36:18" (1/1) ... [2025-04-24 18:36:18,429 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:36:18" (1/1) ... [2025-04-24 18:36:18,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:36:18" (1/1) ... [2025-04-24 18:36:18,432 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:36:18" (1/1) ... [2025-04-24 18:36:18,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:36:18" (1/1) ... [2025-04-24 18:36:18,436 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 18:36:18,437 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 18:36:18,437 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 18:36:18,437 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 18:36:18,438 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:36:18" (1/1) ... [2025-04-24 18:36:18,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 18:36:18,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:36:18,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-24 18:36:18,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-24 18:36:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-24 18:36:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-24 18:36:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-24 18:36:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-24 18:36:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-24 18:36:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 18:36:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 18:36:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-24 18:36:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 18:36:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 18:36:18,498 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-24 18:36:18,590 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 18:36:18,592 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 18:36:18,720 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 18:36:18,720 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 18:36:18,827 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 18:36:18,830 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 18:36:18,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 06:36:18 BoogieIcfgContainer [2025-04-24 18:36:18,831 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 18:36:18,832 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 18:36:18,832 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 18:36:18,836 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 18:36:18,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 06:36:17" (1/3) ... [2025-04-24 18:36:18,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c096a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 06:36:18, skipping insertion in model container [2025-04-24 18:36:18,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:36:18" (2/3) ... [2025-04-24 18:36:18,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c096a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 06:36:18, skipping insertion in model container [2025-04-24 18:36:18,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 06:36:18" (3/3) ... [2025-04-24 18:36:18,838 INFO L128 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2025-04-24 18:36:18,847 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 18:36:18,849 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG stateful01-1.i that has 3 procedures, 32 locations, 30 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-24 18:36:18,849 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 18:36:18,889 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-24 18:36:18,923 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 18:36:18,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 18:36:18,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:36:18,928 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-24 18:36:18,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-24 18:36:18,997 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 18:36:19,010 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 18:36:19,015 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=PARTIAL_ORDER_FA, 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;@4fb5a241, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 18:36:19,015 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-24 18:36:19,205 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 18:36:19,208 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:36:19,209 INFO L139 ounterexampleChecker]: Examining path program with hash 1616134452, occurence #1 [2025-04-24 18:36:19,209 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:36:19,209 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:36:19,213 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:36:19,213 INFO L85 PathProgramCache]: Analyzing trace with hash 553023576, now seen corresponding path program 1 times [2025-04-24 18:36:19,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:36:19,219 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432741826] [2025-04-24 18:36:19,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:36:19,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:36:19,289 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-24 18:36:19,332 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-24 18:36:19,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:36:19,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 18:36:19,333 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-24 18:36:19,339 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-24 18:36:19,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-24 18:36:19,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:36:19,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 18:36:19,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-24 18:36:19,417 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-24 18:36:19,418 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-04-24 18:36:19,419 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-04-24 18:36:19,419 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-24 18:36:19,420 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 18:36:19,425 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-04-24 18:36:19,475 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-24 18:36:19,475 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-24 18:36:19,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-24 18:36:19,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.04 06:36:19 BasicIcfg [2025-04-24 18:36:19,483 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-24 18:36:19,484 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-24 18:36:19,484 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-24 18:36:19,484 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-24 18:36:19,485 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 06:36:18" (3/4) ... [2025-04-24 18:36:19,485 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-24 18:36:19,529 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 2. [2025-04-24 18:36:19,555 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-04-24 18:36:19,556 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-04-24 18:36:19,556 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-24 18:36:19,557 INFO L158 Benchmark]: Toolchain (without parser) took 1585.76ms. Allocated memory is still 167.8MB. Free memory was 131.2MB in the beginning and 109.8MB in the end (delta: 21.4MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2025-04-24 18:36:19,557 INFO L158 Benchmark]: CDTParser took 0.91ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 18:36:19,557 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.55ms. Allocated memory is still 167.8MB. Free memory was 131.2MB in the beginning and 109.0MB in the end (delta: 22.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-24 18:36:19,557 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.15ms. Allocated memory is still 167.8MB. Free memory was 109.0MB in the beginning and 107.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 18:36:19,557 INFO L158 Benchmark]: Boogie Preprocessor took 21.00ms. Allocated memory is still 167.8MB. Free memory was 107.1MB in the beginning and 106.1MB in the end (delta: 925.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 18:36:19,558 INFO L158 Benchmark]: RCFGBuilder took 393.94ms. Allocated memory is still 167.8MB. Free memory was 106.1MB in the beginning and 79.7MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-24 18:36:19,558 INFO L158 Benchmark]: TraceAbstraction took 651.57ms. Allocated memory is still 167.8MB. Free memory was 79.2MB in the beginning and 118.6MB in the end (delta: -39.3MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2025-04-24 18:36:19,558 INFO L158 Benchmark]: Witness Printer took 71.61ms. Allocated memory is still 167.8MB. Free memory was 118.6MB in the beginning and 109.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-24 18:36:19,559 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.55ms. Allocated memory is still 167.8MB. Free memory was 131.2MB in the beginning and 109.0MB in the end (delta: 22.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.15ms. Allocated memory is still 167.8MB. Free memory was 109.0MB in the beginning and 107.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.00ms. Allocated memory is still 167.8MB. Free memory was 107.1MB in the beginning and 106.1MB in the end (delta: 925.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 393.94ms. Allocated memory is still 167.8MB. Free memory was 106.1MB in the beginning and 79.7MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 651.57ms. Allocated memory is still 167.8MB. Free memory was 79.2MB in the beginning and 118.6MB in the end (delta: -39.3MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * Witness Printer took 71.61ms. Allocated memory is still 167.8MB. Free memory was 118.6MB in the beginning and 109.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 226, independent: 221, independent conditional: 18, independent unconditional: 203, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 226, independent: 221, independent conditional: 18, independent unconditional: 203, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 226, independent: 221, independent conditional: 18, independent unconditional: 203, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 226, independent: 221, independent conditional: 18, independent unconditional: 203, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 226, independent: 221, independent conditional: 0, independent unconditional: 221, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 226, independent: 221, independent conditional: 0, independent unconditional: 221, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 208, independent: 203, independent conditional: 0, independent unconditional: 203, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 208, independent: 198, independent conditional: 0, independent unconditional: 198, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 10, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 144, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 226, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 208, unknown conditional: 0, unknown unconditional: 208] , Statistics on independence cache: Total cache size (in pairs): 208, Positive cache size: 203, Positive conditional cache size: 0, Positive unconditional cache size: 203, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 18, Maximal queried relation: 0, Independence queries for same thread: 0, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 27, Number of trivial persistent sets: 18, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 208, independent: 203, independent conditional: 0, independent unconditional: 203, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 226, independent: 221, independent conditional: 18, independent unconditional: 203, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 226, independent: 221, independent conditional: 18, independent unconditional: 203, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 226, independent: 221, independent conditional: 18, independent unconditional: 203, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 226, independent: 221, independent conditional: 18, independent unconditional: 203, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 226, independent: 221, independent conditional: 0, independent unconditional: 221, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 226, independent: 221, independent conditional: 0, independent unconditional: 221, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 208, independent: 203, independent conditional: 0, independent unconditional: 203, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 208, independent: 198, independent conditional: 0, independent unconditional: 198, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 10, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 144, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 226, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 208, unknown conditional: 0, unknown unconditional: 208] , Statistics on independence cache: Total cache size (in pairs): 208, Positive cache size: 203, Positive conditional cache size: 0, Positive unconditional cache size: 203, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 18, Maximal queried relation: 0, Independence queries for same thread: 0 - CounterExampleResult [Line: 727]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L692] 0 pthread_mutex_t ma, mb; [L693] 0 int data1, data2; [L716] 0 pthread_t t1, t2; [L719] 0 data1 = 10 [L720] 0 data2 = 10 [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [\at(arg, Pre)={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, t1=0] [L697] 1 data1++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, data1=11, data2=10, ma={3:0}, mb={4:0}] [L700] 1 data2++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}] [L702] 1 return 0; [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, \result={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}, t1=0, t2=1] [L707] 2 data1+=5 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=11, ma={3:0}, mb={4:0}] [L710] 2 data2-=6 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L712] 2 return 0; [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=0, t2=1] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=0, t2=1] [L725] COND TRUE 0 data1==16 && data2==5 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=0, t2=1] [L727] 0 reach_error() VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=0, t2=1] - UnprovableResult [Line: 722]: 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: 721]: 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 54 locations, 54 edges, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 RESULT: Ultimate proved your program to be incorrect! [2025-04-24 18:36:19,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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