./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-complex/bounded_buffer.i --full-output --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1f73d82f Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1f73d82-m [2024-11-21 14:32:21,300 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 14:32:21,411 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-21 14:32:21,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 14:32:21,420 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 14:32:21,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 14:32:21,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 14:32:21,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 14:32:21,452 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 14:32:21,452 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 14:32:21,452 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 14:32:21,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 14:32:21,452 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 14:32:21,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 14:32:21,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 14:32:21,453 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 14:32:21,453 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 14:32:21,453 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 14:32:21,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 14:32:21,453 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 14:32:21,454 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 14:32:21,454 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 14:32:21,454 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 14:32:21,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 14:32:21,454 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-21 14:32:21,454 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 14:32:21,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 14:32:21,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 14:32:21,455 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 14:32:21,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 14:32:21,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 14:32:21,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 14:32:21,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 14:32:21,455 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-21 14:32:21,455 INFO L153 SettingsManager]: * Commutativity condition synthesis=SUFFICIENT [2024-11-21 14:32:21,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 14:32:21,456 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 14:32:21,456 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-21 14:32:21,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 14:32:21,456 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 14:32:21,456 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-21 14:32:21,456 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-21 14:32:21,456 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-21 14:32:21,456 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-jdk21/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 -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-11-21 14:32:21,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 14:32:21,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 14:32:21,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 14:32:21,783 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 14:32:21,784 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 14:32:21,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2024-11-21 14:32:23,094 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/f6f985bb8/49ff56e8d6dd4b3a95a925923fe65502/FLAGd80398258 [2024-11-21 14:32:23,398 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 14:32:23,399 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2024-11-21 14:32:23,425 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/f6f985bb8/49ff56e8d6dd4b3a95a925923fe65502/FLAGd80398258 [2024-11-21 14:32:23,653 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/f6f985bb8/49ff56e8d6dd4b3a95a925923fe65502 [2024-11-21 14:32:23,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 14:32:23,656 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 14:32:23,656 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 14:32:23,656 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 14:32:23,659 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 14:32:23,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:32:23" (1/1) ... [2024-11-21 14:32:23,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d183a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:32:23, skipping insertion in model container [2024-11-21 14:32:23,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:32:23" (1/1) ... [2024-11-21 14:32:23,703 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 14:32:24,156 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2024-11-21 14:32:24,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 14:32:24,199 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 14:32:24,257 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2024-11-21 14:32:24,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 14:32:24,393 INFO L204 MainTranslator]: Completed translation [2024-11-21 14:32:24,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:32:24 WrapperNode [2024-11-21 14:32:24,394 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 14:32:24,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 14:32:24,396 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 14:32:24,396 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 14:32:24,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:32:24" (1/1) ... [2024-11-21 14:32:24,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:32:24" (1/1) ... [2024-11-21 14:32:24,459 INFO L138 Inliner]: procedures = 429, calls = 134, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 462 [2024-11-21 14:32:24,460 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 14:32:24,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 14:32:24,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 14:32:24,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 14:32:24,467 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:32:24" (1/1) ... [2024-11-21 14:32:24,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:32:24" (1/1) ... [2024-11-21 14:32:24,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:32:24" (1/1) ... [2024-11-21 14:32:24,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:32:24" (1/1) ... [2024-11-21 14:32:24,503 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:32:24" (1/1) ... [2024-11-21 14:32:24,505 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:32:24" (1/1) ... [2024-11-21 14:32:24,514 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:32:24" (1/1) ... [2024-11-21 14:32:24,516 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:32:24" (1/1) ... [2024-11-21 14:32:24,520 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:32:24" (1/1) ... [2024-11-21 14:32:24,530 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 14:32:24,531 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 14:32:24,531 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 14:32:24,531 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 14:32:24,532 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:32:24" (1/1) ... [2024-11-21 14:32:24,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 14:32:24,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 14:32:24,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-21 14:32:24,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-21 14:32:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2024-11-21 14:32:24,603 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2024-11-21 14:32:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-21 14:32:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-21 14:32:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-21 14:32:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-21 14:32:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 14:32:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-21 14:32:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 14:32:24,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 14:32:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-21 14:32:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-21 14:32:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2024-11-21 14:32:24,604 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2024-11-21 14:32:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-21 14:32:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-21 14:32:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-21 14:32:24,606 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-21 14:32:24,807 INFO L234 CfgBuilder]: Building ICFG [2024-11-21 14:32:24,809 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 14:32:25,431 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-21 14:32:25,432 INFO L283 CfgBuilder]: Performing block encoding [2024-11-21 14:32:25,874 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 14:32:25,874 INFO L312 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-21 14:32:25,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:32:25 BoogieIcfgContainer [2024-11-21 14:32:25,875 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 14:32:25,877 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 14:32:25,878 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 14:32:25,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 14:32:25,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 02:32:23" (1/3) ... [2024-11-21 14:32:25,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b4f61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:32:25, skipping insertion in model container [2024-11-21 14:32:25,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:32:24" (2/3) ... [2024-11-21 14:32:25,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b4f61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:32:25, skipping insertion in model container [2024-11-21 14:32:25,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:32:25" (3/3) ... [2024-11-21 14:32:25,886 INFO L128 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2024-11-21 14:32:25,899 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 14:32:25,902 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bounded_buffer.i that has 3 procedures, 81 locations, 1 initial locations, 13 loop locations, and 3 error locations. [2024-11-21 14:32:25,902 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-21 14:32:26,024 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-21 14:32:26,074 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 14:32:26,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-21 14:32:26,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 14:32:26,078 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-21 14:32:26,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-21 14:32:26,191 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 14:32:26,204 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == producer_routineThread1of1ForFork0 ======== [2024-11-21 14:32:26,214 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=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;@7a692a03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 14:32:26,214 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 14:32:28,529 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting producer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [producer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-21 14:32:28,529 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 14:32:28,530 INFO L139 ounterexampleChecker]: Examining path program with hash -781988268, occurence #1 [2024-11-21 14:32:28,530 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 14:32:28,530 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 14:32:28,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 14:32:28,534 INFO L85 PathProgramCache]: Analyzing trace with hash -180315480, now seen corresponding path program 1 times [2024-11-21 14:32:28,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 14:32:28,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713799905] [2024-11-21 14:32:28,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 14:32:28,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 14:32:28,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 14:32:29,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 14:32:29,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 14:32:29,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713799905] [2024-11-21 14:32:29,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713799905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 14:32:29,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 14:32:29,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 14:32:29,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597634175] [2024-11-21 14:32:29,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 14:32:29,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 14:32:29,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 14:32:29,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 14:32:29,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 14:32:29,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 14:32:29,110 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 14:32:29,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-21 14:32:29,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 14:45:04,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 14:45:04,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 14:45:04,898 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting producer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [producer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-21 14:45:04,898 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 14:45:04,898 INFO L139 ounterexampleChecker]: Examining path program with hash -1789277361, occurence #1 [2024-11-21 14:45:04,898 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 14:45:04,898 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 14:45:04,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 14:45:04,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1677405809, now seen corresponding path program 1 times [2024-11-21 14:45:04,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 14:45:04,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083094145] [2024-11-21 14:45:04,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 14:45:04,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 14:45:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-21 14:45:05,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [255389665] [2024-11-21 14:45:05,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 14:45:05,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 14:45:05,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 14:45:05,218 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 14:45:05,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-21 14:45:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 14:45:06,340 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-21 14:45:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 14:45:10,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-21 14:45:10,512 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-21 14:45:10,513 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location producer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 1 remaining) [2024-11-21 14:45:10,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-21 14:45:10,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 14:45:10,719 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-21 14:45:10,720 INFO L319 ceAbstractionStarter]: Result for error location producer_routineThread1of1ForFork0 was UNSAFE (1/3) [2024-11-21 14:45:10,776 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-21 14:45:10,776 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-21 14:45:10,979 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forcibly destroying the process [2024-11-21 14:45:11,180 FATAL L548 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Could not destroy process within 200 ms, abandoning it [2024-11-21 14:45:11,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 02:45:11 BasicIcfg [2024-11-21 14:45:11,181 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-21 14:45:11,184 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-21 14:45:11,184 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-21 14:45:11,184 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-21 14:45:11,185 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:32:25" (3/4) ... [2024-11-21 14:45:11,187 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-21 14:45:11,192 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-21 14:45:11,193 INFO L158 Benchmark]: Toolchain (without parser) took 767537.18ms. Allocated memory was 83.9MB in the beginning and 360.7MB in the end (delta: 276.8MB). Free memory was 57.0MB in the beginning and 142.4MB in the end (delta: -85.3MB). Peak memory consumption was 189.8MB. Max. memory is 16.1GB. [2024-11-21 14:45:11,196 INFO L158 Benchmark]: CDTParser took 2.23ms. Allocated memory is still 83.9MB. Free memory was 63.5MB in the beginning and 63.5MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 14:45:11,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 738.27ms. Allocated memory is still 83.9MB. Free memory was 56.7MB in the beginning and 40.6MB in the end (delta: 16.1MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2024-11-21 14:45:11,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.61ms. Allocated memory is still 83.9MB. Free memory was 40.6MB in the beginning and 36.0MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-21 14:45:11,197 INFO L158 Benchmark]: Boogie Preprocessor took 69.96ms. Allocated memory is still 83.9MB. Free memory was 36.0MB in the beginning and 32.8MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 14:45:11,197 INFO L158 Benchmark]: RCFGBuilder took 1344.03ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 32.8MB in the beginning and 37.6MB in the end (delta: -4.8MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2024-11-21 14:45:11,197 INFO L158 Benchmark]: TraceAbstraction took 765304.22ms. Allocated memory was 117.4MB in the beginning and 360.7MB in the end (delta: 243.3MB). Free memory was 37.1MB in the beginning and 142.4MB in the end (delta: -105.3MB). Peak memory consumption was 131.4MB. Max. memory is 16.1GB. [2024-11-21 14:45:11,197 INFO L158 Benchmark]: Witness Printer took 8.83ms. Allocated memory is still 360.7MB. Free memory was 142.4MB in the beginning and 142.4MB in the end (delta: 19.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 14:45:11,198 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.23ms. Allocated memory is still 83.9MB. Free memory was 63.5MB in the beginning and 63.5MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 738.27ms. Allocated memory is still 83.9MB. Free memory was 56.7MB in the beginning and 40.6MB in the end (delta: 16.1MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.61ms. Allocated memory is still 83.9MB. Free memory was 40.6MB in the beginning and 36.0MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.96ms. Allocated memory is still 83.9MB. Free memory was 36.0MB in the beginning and 32.8MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1344.03ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 32.8MB in the beginning and 37.6MB in the end (delta: -4.8MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * TraceAbstraction took 765304.22ms. Allocated memory was 117.4MB in the beginning and 360.7MB in the end (delta: 243.3MB). Free memory was 37.1MB in the beginning and 142.4MB in the end (delta: -105.3MB). Peak memory consumption was 131.4MB. Max. memory is 16.1GB. * Witness Printer took 8.83ms. Allocated memory is still 360.7MB. Free memory was 142.4MB in the beginning and 142.4MB in the end (delta: 19.9kB). There was no memory consumed. 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: 1331, independent: 1268, independent conditional: 58, independent unconditional: 1210, dependent: 59, dependent conditional: 41, dependent unconditional: 18, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1295, independent: 1268, independent conditional: 58, independent unconditional: 1210, dependent: 23, dependent conditional: 5, dependent unconditional: 18, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1295, independent: 1268, independent conditional: 58, independent unconditional: 1210, dependent: 23, dependent conditional: 5, dependent unconditional: 18, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1299, independent: 1268, independent conditional: 58, independent unconditional: 1210, dependent: 27, dependent conditional: 9, dependent unconditional: 18, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1299, independent: 1268, independent conditional: 0, independent unconditional: 1268, dependent: 27, dependent conditional: 2, dependent unconditional: 25, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1299, independent: 1268, independent conditional: 0, independent unconditional: 1268, dependent: 27, dependent conditional: 2, dependent unconditional: 25, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1204, independent: 1181, independent conditional: 0, independent unconditional: 1181, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1204, independent: 1176, independent conditional: 0, independent unconditional: 1176, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 28, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 28, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticIndependenceRelation.Query Time [ms]: [ total: 757630, independent: 87, independent conditional: 0, independent unconditional: 87, dependent: 419230, dependent conditional: 414568, dependent unconditional: 4662, unknown: 338313, unknown conditional: 0, unknown unconditional: 338313] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1299, independent: 87, independent conditional: 0, independent unconditional: 87, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 1205, unknown conditional: 2, unknown unconditional: 1203] , Statistics on independence cache: Total cache size (in pairs): 1201, Positive cache size: 1181, Positive conditional cache size: 0, Positive unconditional cache size: 1181, Negative cache size: 20, Negative conditional cache size: 2, Negative unconditional cache size: 18, Unknown cache size: 3, Unknown conditional cache size: 0, Unknown unconditional cache size: 3, Eliminated conditions: 66, Maximal queried relation: 1, Independence queries for same thread: 36, Persistent sets #1 benchmarks: Persistent set computation time: 343.1s, Number of persistent set computation: 18, Number of trivial persistent sets: 15, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1231, independent: 1210, independent conditional: 0, independent unconditional: 1210, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1331, independent: 1268, independent conditional: 58, independent unconditional: 1210, dependent: 59, dependent conditional: 41, dependent unconditional: 18, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1295, independent: 1268, independent conditional: 58, independent unconditional: 1210, dependent: 23, dependent conditional: 5, dependent unconditional: 18, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1295, independent: 1268, independent conditional: 58, independent unconditional: 1210, dependent: 23, dependent conditional: 5, dependent unconditional: 18, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1299, independent: 1268, independent conditional: 58, independent unconditional: 1210, dependent: 27, dependent conditional: 9, dependent unconditional: 18, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1299, independent: 1268, independent conditional: 0, independent unconditional: 1268, dependent: 27, dependent conditional: 2, dependent unconditional: 25, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1299, independent: 1268, independent conditional: 0, independent unconditional: 1268, dependent: 27, dependent conditional: 2, dependent unconditional: 25, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1204, independent: 1181, independent conditional: 0, independent unconditional: 1181, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1204, independent: 1176, independent conditional: 0, independent unconditional: 1176, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 28, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 28, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticIndependenceRelation.Query Time [ms]: [ total: 757630, independent: 87, independent conditional: 0, independent unconditional: 87, dependent: 419230, dependent conditional: 414568, dependent unconditional: 4662, unknown: 338313, unknown conditional: 0, unknown unconditional: 338313] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1299, independent: 87, independent conditional: 0, independent unconditional: 87, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 1205, unknown conditional: 2, unknown unconditional: 1203] , Statistics on independence cache: Total cache size (in pairs): 1201, Positive cache size: 1181, Positive conditional cache size: 0, Positive unconditional cache size: 1181, Negative cache size: 20, Negative conditional cache size: 2, Negative unconditional cache size: 18, Unknown cache size: 3, Unknown conditional cache size: 0, Unknown unconditional cache size: 3, Eliminated conditions: 66, Maximal queried relation: 1, Independence queries for same thread: 36 - UnprovableResult [Line: 1636]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of fflush at line 1636. Possible FailurePath: [L1663] 0 thread_t producers[2]; [L1664] 0 thread_t consumers[2]; [L1665] 0 int i; [L1666] 0 bounded_buf_t buffer; [L1667] CALL 0 bounded_buf_init(&buffer, 3) [L1452] 0 int status = 0; [L1453] COND FALSE 0 !(bbuf == ((void *)0)) [L1454] 0 bbuf->valid = 0xACDEFA [L1455] 0 status = pthread_mutex_init(&bbuf->mutex, ((void *)0)) [L1456] COND FALSE 0 !(status != 0) [L1457] 0 status = pthread_cond_init(&bbuf->not_full, ((void *)0)) [L1458] COND FALSE 0 !(status != 0) [L1463] 0 status = pthread_cond_init(&bbuf->not_empty, ((void *)0)) [L1464] COND FALSE 0 !(status != 0) [L1470] 0 bbuf->item_num = 0 [L1471] 0 bbuf->max_size = sz [L1472] 0 bbuf->head = 0 [L1473] 0 bbuf->rear = 0 [L1474] EXPR, FCALL 0 calloc( sz, sizeof(void*) ) [L1474] 0 bbuf->buf = calloc( sz, sizeof(void*) ) [L1475] EXPR 0 bbuf->buf [L1475] COND FALSE 0 !(bbuf->buf == ((void *)0)) [L1482] 0 bbuf->head = 0 [L1483] 0 bbuf->rear = 0 [L1484] 0 bbuf->p_wait = 0 [L1485] 0 bbuf->c_wait = 0 [L1486] 0 return 0; [L1667] RET 0 bounded_buf_init(&buffer, 3) [L1668] 0 i = 0 VAL [buffer={7:0}, consumers={6:0}, i=0, producers={9:0}] [L1668] COND TRUE 0 i < 2 [L1670] 0 producers[i].id = i [L1671] 0 producers[i].bbuf = &buffer [L1672] FCALL, FORK 0 pthread_create(&producers[i].pid, ((void *)0), producer_routine, (void*)&producers[i]) VAL [buffer={7:0}, consumers={6:0}, i=0, producers={9:0}] [L1623] 1 thread_t * thread = (thread_t*) arg; [L1624] 1 int i, temp; [L1625] 1 int ch; [L1626] 1 int status = 0; [L1627] 1 i = 0 VAL [\old(arg)={9:0}, arg={9:0}, i=0, status=0, thread={9:0}] [L1668] 0 i++ VAL [buffer={7:0}, consumers={6:0}, i=1, producers={9:0}] [L1627] COND TRUE 1 i < 4 [L1629] 1 ch = __VERIFIER_nondet_int() [L1630] 1 temp = ch [L1631] EXPR 1 thread->bbuf [L1631] CALL, EXPR 1 bounded_buf_put(thread->bbuf, (void*)((int)temp)) [L1526] 1 int status = 0, status1 = 0, status2 = 0; [L1527] 1 bbuf == ((void *)0) || bbuf->valid != 0xACDEFA [L1527] EXPR 1 bbuf->valid [L1527] 1 bbuf == ((void *)0) || bbuf->valid != 0xACDEFA VAL [\old(bbuf)={7:0}, \old(item)={0:11329273}, bbuf={7:0}, item={0:11329273}, status1=0, status2=0, status=0] [L1527] COND FALSE 1 !(bbuf == ((void *)0) || bbuf->valid != 0xACDEFA) [L1529] 1 status = pthread_mutex_lock(&bbuf->mutex) [L1531] COND FALSE 1 !(status != 0) [L1532] EXPR 1 bbuf->rear [L1532] EXPR 1 bbuf->max_size [L1532] EXPR 1 bbuf->head VAL [\old(bbuf)={7:0}, \old(item)={0:11329273}, bbuf={7:0}, item={0:11329273}, status1=0, status2=0, status=0] [L1532] COND FALSE 1 !((bbuf->rear + 1)% bbuf->max_size == bbuf->head) [L1542] COND TRUE 1 status == 0 [L1543] EXPR 1 bbuf->buf [L1543] EXPR 1 bbuf->rear [L1543] 1 bbuf->buf[bbuf->rear]= item [L1544] EXPR 1 bbuf->rear [L1544] EXPR 1 bbuf->max_size [L1544] 1 bbuf->rear = (bbuf->rear+1)% (bbuf->max_size) [L1545] EXPR 1 bbuf->c_wait [L1545] COND FALSE 1 !(bbuf->c_wait > 0) [L1551] 1 status2 = pthread_mutex_unlock(&bbuf->mutex) [L1552] 1 return (status == 0)? status2 : status; VAL [\old(bbuf)={7:0}, \old(item)={0:11329273}, \result=0, bbuf={7:0}, item={0:11329273}, status1=0, status2=0, status=0] [L1631] RET, EXPR 1 bounded_buf_put(thread->bbuf, (void*)((int)temp)) [L1631] 1 status = bounded_buf_put(thread->bbuf, (void*)((int)temp)) [L1632] COND FALSE 1 !(status != 0) VAL [\old(arg)={9:0}, arg={9:0}, ch=11329273, i=0, status=0, temp=11329273, thread={9:0}] [L1668] COND TRUE 0 i < 2 [L1670] 0 producers[i].id = i [L1671] 0 producers[i].bbuf = &buffer [L1672] FCALL, FORK 0 pthread_create(&producers[i].pid, ((void *)0), producer_routine, (void*)&producers[i]) VAL [buffer={7:0}, consumers={6:0}, i=1, producers={9:0}] [L1636] 1 fflush(stdout) VAL [\old(arg)={9:0}, arg={9:0}, ch=11329273, i=0, status=0, temp=11329273, thread={9:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: producer_routineThread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 133 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 764.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 758.1s, 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: 4, 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, 1.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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, ImperfectProofs: 0 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-21 14:45:11,240 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1f73d82-m [2024-11-21 14:45:13,287 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 14:45:13,390 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-11-21 14:45:13,397 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 14:45:13,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 14:45:13,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 14:45:13,427 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 14:45:13,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 14:45:13,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 14:45:13,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 14:45:13,429 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 14:45:13,429 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 14:45:13,429 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 14:45:13,430 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 14:45:13,430 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 14:45:13,430 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 14:45:13,430 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 14:45:13,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 14:45:13,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 14:45:13,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 14:45:13,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 14:45:13,431 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-21 14:45:13,431 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-21 14:45:13,431 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 14:45:13,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 14:45:13,432 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-21 14:45:13,432 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 14:45:13,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 14:45:13,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 14:45:13,432 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 14:45:13,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 14:45:13,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 14:45:13,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 14:45:13,433 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2024-11-21 14:45:13,433 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 14:45:13,433 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-21 14:45:13,433 INFO L153 SettingsManager]: * Commutativity condition synthesis=SUFFICIENT [2024-11-21 14:45:13,433 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 14:45:13,434 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-21 14:45:13,434 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-21 14:45:13,434 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-21 14:45:13,434 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 14:45:13,434 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-21 14:45:13,434 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-21 14:45:13,434 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-21 14:45:13,434 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-jdk21/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 -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-11-21 14:45:13,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 14:45:13,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 14:45:13,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 14:45:13,698 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 14:45:13,698 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 14:45:13,699 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2024-11-21 14:45:14,961 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/f849205df/1585c98af4864486935acfd568caf446/FLAG682a35b04 [2024-11-21 14:45:15,373 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 14:45:15,373 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2024-11-21 14:45:15,399 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/f849205df/1585c98af4864486935acfd568caf446/FLAG682a35b04 [2024-11-21 14:45:15,416 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/f849205df/1585c98af4864486935acfd568caf446 [2024-11-21 14:45:15,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 14:45:15,422 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 14:45:15,423 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 14:45:15,423 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 14:45:15,427 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 14:45:15,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:45:15" (1/1) ... [2024-11-21 14:45:15,430 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b16216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:45:15, skipping insertion in model container [2024-11-21 14:45:15,430 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:45:15" (1/1) ... [2024-11-21 14:45:15,477 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 14:45:15,982 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2024-11-21 14:45:16,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 14:45:16,047 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 14:45:16,126 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2024-11-21 14:45:16,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 14:45:16,261 INFO L204 MainTranslator]: Completed translation [2024-11-21 14:45:16,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:45:16 WrapperNode [2024-11-21 14:45:16,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 14:45:16,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 14:45:16,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 14:45:16,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 14:45:16,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:45:16" (1/1) ... [2024-11-21 14:45:16,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:45:16" (1/1) ... [2024-11-21 14:45:16,369 INFO L138 Inliner]: procedures = 432, calls = 134, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 458 [2024-11-21 14:45:16,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 14:45:16,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 14:45:16,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 14:45:16,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 14:45:16,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:45:16" (1/1) ... [2024-11-21 14:45:16,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:45:16" (1/1) ... [2024-11-21 14:45:16,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:45:16" (1/1) ... [2024-11-21 14:45:16,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:45:16" (1/1) ... [2024-11-21 14:45:16,417 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:45:16" (1/1) ... [2024-11-21 14:45:16,419 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:45:16" (1/1) ... [2024-11-21 14:45:16,424 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:45:16" (1/1) ... [2024-11-21 14:45:16,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:45:16" (1/1) ... [2024-11-21 14:45:16,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:45:16" (1/1) ... [2024-11-21 14:45:16,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 14:45:16,433 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 14:45:16,433 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 14:45:16,433 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 14:45:16,434 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:45:16" (1/1) ... [2024-11-21 14:45:16,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 14:45:16,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 14:45:16,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-21 14:45:16,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-21 14:45:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2024-11-21 14:45:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2024-11-21 14:45:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-21 14:45:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-21 14:45:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-21 14:45:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-21 14:45:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 14:45:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-21 14:45:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 14:45:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 14:45:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-21 14:45:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-21 14:45:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-21 14:45:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2024-11-21 14:45:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2024-11-21 14:45:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-21 14:45:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-21 14:45:16,491 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-21 14:45:16,668 INFO L234 CfgBuilder]: Building ICFG [2024-11-21 14:45:16,669 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 14:45:17,583 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-21 14:45:17,583 INFO L283 CfgBuilder]: Performing block encoding [2024-11-21 14:45:18,028 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 14:45:18,029 INFO L312 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-21 14:45:18,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:45:18 BoogieIcfgContainer [2024-11-21 14:45:18,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 14:45:18,033 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 14:45:18,034 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 14:45:18,040 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 14:45:18,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 02:45:15" (1/3) ... [2024-11-21 14:45:18,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3632858b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:45:18, skipping insertion in model container [2024-11-21 14:45:18,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:45:16" (2/3) ... [2024-11-21 14:45:18,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3632858b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:45:18, skipping insertion in model container [2024-11-21 14:45:18,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:45:18" (3/3) ... [2024-11-21 14:45:18,042 INFO L128 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2024-11-21 14:45:18,059 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 14:45:18,060 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bounded_buffer.i that has 3 procedures, 81 locations, 1 initial locations, 13 loop locations, and 3 error locations. [2024-11-21 14:45:18,061 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-21 14:45:18,176 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-21 14:45:18,222 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 14:45:18,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-21 14:45:18,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 14:45:18,226 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-21 14:45:18,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-21 14:45:18,330 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 14:45:18,347 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-21 14:45:18,355 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=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;@84fd6f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 14:45:18,355 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-21 14:45:23,780 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-21 14:45:23,780 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 14:45:23,780 INFO L139 ounterexampleChecker]: Examining path program with hash 231903614, occurence #1 [2024-11-21 14:45:23,780 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 14:45:23,780 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 14:45:23,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 14:45:23,784 INFO L85 PathProgramCache]: Analyzing trace with hash -915632840, now seen corresponding path program 1 times [2024-11-21 14:45:23,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 14:45:23,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124725210] [2024-11-21 14:45:23,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 14:45:23,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 14:45:23,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 14:45:23,822 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 14:45:23,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-21 14:45:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 14:45:24,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 14:45:24,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 14:45:24,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 14:45:24,090 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 14:45:24,091 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 14:45:24,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124725210] [2024-11-21 14:45:24,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124725210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 14:45:24,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 14:45:24,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 14:45:24,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001959631] [2024-11-21 14:45:24,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 14:45:24,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 14:45:24,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 14:45:24,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 14:45:24,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 14:45:24,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 14:45:24,117 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 14:45:24,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-21 14:45:24,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 14:45:26,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-21 14:45:28,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-21 14:45:30,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15