./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco --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 01186d000498d57447d1d7ea86dd893215c56febea2169abeb96f12030a58ea4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 06:29:25,314 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 06:29:25,400 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-27 06:29:25,406 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 06:29:25,407 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 06:29:25,439 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 06:29:25,441 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 06:29:25,441 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 06:29:25,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 06:29:25,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 06:29:25,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 06:29:25,442 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 06:29:25,442 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 06:29:25,442 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 06:29:25,443 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 06:29:25,443 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 06:29:25,443 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 06:29:25,443 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 06:29:25,443 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 06:29:25,443 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 06:29:25,443 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 06:29:25,443 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 06:29:25,443 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 06:29:25,444 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 06:29:25,444 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 06:29:25,444 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 06:29:25,444 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 06:29:25,444 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 06:29:25,444 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 06:29:25,444 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 06:29:25,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:29:25,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 06:29:25,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 06:29:25,445 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 06:29:25,445 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-27 06:29:25,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 06:29:25,445 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 06:29:25,445 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-27 06:29:25,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 06:29:25,445 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 06:29:25,445 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-27 06:29:25,445 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-27 06:29:25,446 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-27 06:29:25,446 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco 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 -> 01186d000498d57447d1d7ea86dd893215c56febea2169abeb96f12030a58ea4 [2024-11-27 06:29:25,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 06:29:25,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 06:29:25,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 06:29:25,863 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 06:29:25,863 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 06:29:25,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/../../sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c [2024-11-27 06:29:28,745 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/data/3aca43630/08099227609042d884df6243ab8e16a0/FLAG6bce3fb49 [2024-11-27 06:29:29,012 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 06:29:29,013 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c [2024-11-27 06:29:29,023 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/data/3aca43630/08099227609042d884df6243ab8e16a0/FLAG6bce3fb49 [2024-11-27 06:29:29,038 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/data/3aca43630/08099227609042d884df6243ab8e16a0 [2024-11-27 06:29:29,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 06:29:29,042 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 06:29:29,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 06:29:29,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 06:29:29,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 06:29:29,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:29:29" (1/1) ... [2024-11-27 06:29:29,050 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8404b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:29:29, skipping insertion in model container [2024-11-27 06:29:29,050 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:29:29" (1/1) ... [2024-11-27 06:29:29,069 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 06:29:29,275 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c[4124,4137] [2024-11-27 06:29:29,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:29:29,303 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 06:29:29,341 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c[4124,4137] [2024-11-27 06:29:29,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:29:29,372 INFO L204 MainTranslator]: Completed translation [2024-11-27 06:29:29,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:29:29 WrapperNode [2024-11-27 06:29:29,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 06:29:29,375 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 06:29:29,375 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 06:29:29,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 06:29:29,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:29:29" (1/1) ... [2024-11-27 06:29:29,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:29:29" (1/1) ... [2024-11-27 06:29:29,420 INFO L138 Inliner]: procedures = 24, calls = 48, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 309 [2024-11-27 06:29:29,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 06:29:29,421 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 06:29:29,421 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 06:29:29,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 06:29:29,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:29:29" (1/1) ... [2024-11-27 06:29:29,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:29:29" (1/1) ... [2024-11-27 06:29:29,431 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:29:29" (1/1) ... [2024-11-27 06:29:29,431 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:29:29" (1/1) ... [2024-11-27 06:29:29,442 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:29:29" (1/1) ... [2024-11-27 06:29:29,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:29:29" (1/1) ... [2024-11-27 06:29:29,451 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:29:29" (1/1) ... [2024-11-27 06:29:29,455 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:29:29" (1/1) ... [2024-11-27 06:29:29,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:29:29" (1/1) ... [2024-11-27 06:29:29,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 06:29:29,461 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 06:29:29,461 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 06:29:29,461 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 06:29:29,462 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:29:29" (1/1) ... [2024-11-27 06:29:29,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:29:29,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:29:29,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-27 06:29:29,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-27 06:29:29,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 06:29:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 06:29:29,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 06:29:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 06:29:29,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 06:29:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-27 06:29:29,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-27 06:29:29,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 06:29:29,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 06:29:29,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 06:29:29,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 06:29:29,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 06:29:29,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 06:29:29,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 06:29:29,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 06:29:29,539 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 06:29:29,686 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 06:29:29,688 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 06:29:30,357 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 06:29:30,358 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 06:29:30,898 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 06:29:30,898 INFO L312 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-27 06:29:30,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:29:30 BoogieIcfgContainer [2024-11-27 06:29:30,899 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 06:29:30,901 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 06:29:30,901 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 06:29:30,906 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 06:29:30,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 06:29:29" (1/3) ... [2024-11-27 06:29:30,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ded8098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:29:30, skipping insertion in model container [2024-11-27 06:29:30,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:29:29" (2/3) ... [2024-11-27 06:29:30,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ded8098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:29:30, skipping insertion in model container [2024-11-27 06:29:30,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:29:30" (3/3) ... [2024-11-27 06:29:30,910 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-bad-ring-nondet.wvr.c [2024-11-27 06:29:30,928 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 06:29:30,930 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-bad-ring-nondet.wvr.c that has 4 procedures, 43 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-11-27 06:29:30,931 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 06:29:31,028 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-27 06:29:31,103 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 06:29:31,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-27 06:29:31,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:29:31,107 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-27 06:29:31,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-27 06:29:31,269 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-27 06:29:31,294 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-27 06:29:31,307 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;@7db63fd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 06:29:31,307 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-27 06:29:31,881 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 06:29:31,881 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:29:31,882 INFO L139 ounterexampleChecker]: Examining path program with hash -1141563593, occurence #1 [2024-11-27 06:29:31,882 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:29:31,882 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:29:31,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:29:31,887 INFO L85 PathProgramCache]: Analyzing trace with hash 861360859, now seen corresponding path program 1 times [2024-11-27 06:29:31,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:29:31,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777206785] [2024-11-27 06:29:31,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:29:31,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:29:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:29:32,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:29:32,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:29:32,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777206785] [2024-11-27 06:29:32,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777206785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:29:32,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:29:32,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 06:29:32,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003703653] [2024-11-27 06:29:32,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:29:32,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 06:29:32,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:29:32,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 06:29:32,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 06:29:32,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:32,222 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:29:32,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2024-11-27 06:29:32,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:32,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:32,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 06:29:32,468 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 06:29:32,469 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:29:32,469 INFO L139 ounterexampleChecker]: Examining path program with hash 625188888, occurence #1 [2024-11-27 06:29:32,469 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:29:32,469 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:29:32,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:29:32,471 INFO L85 PathProgramCache]: Analyzing trace with hash -973716002, now seen corresponding path program 1 times [2024-11-27 06:29:32,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:29:32,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148881398] [2024-11-27 06:29:32,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:29:32,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:29:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:29:32,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:29:32,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:29:32,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148881398] [2024-11-27 06:29:32,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148881398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:29:32,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:29:32,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 06:29:32,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435765333] [2024-11-27 06:29:32,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:29:32,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 06:29:32,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:29:32,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 06:29:32,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 06:29:32,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:32,872 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:29:32,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-11-27 06:29:32,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:32,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:33,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:33,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:29:33,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 06:29:33,002 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 06:29:33,003 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:29:33,003 INFO L139 ounterexampleChecker]: Examining path program with hash 619371339, occurence #1 [2024-11-27 06:29:33,003 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:29:33,003 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:29:33,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:29:33,003 INFO L85 PathProgramCache]: Analyzing trace with hash 77026328, now seen corresponding path program 1 times [2024-11-27 06:29:33,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:29:33,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519260795] [2024-11-27 06:29:33,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:29:33,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:29:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:29:33,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:29:33,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:29:33,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519260795] [2024-11-27 06:29:33,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519260795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:29:33,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:29:33,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 06:29:33,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727338233] [2024-11-27 06:29:33,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:29:33,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 06:29:33,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:29:33,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 06:29:33,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 06:29:33,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:33,211 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:29:33,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-27 06:29:33,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:33,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:29:33,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:33,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:33,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:29:33,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:29:33,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 06:29:33,339 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 06:29:33,339 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:29:33,339 INFO L139 ounterexampleChecker]: Examining path program with hash 1302167612, occurence #1 [2024-11-27 06:29:33,339 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:29:33,339 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:29:33,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:29:33,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1271266879, now seen corresponding path program 2 times [2024-11-27 06:29:33,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:29:33,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545703948] [2024-11-27 06:29:33,341 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:29:33,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:29:33,405 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 06:29:33,405 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:29:33,658 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 06:29:33,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:29:33,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545703948] [2024-11-27 06:29:33,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545703948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:29:33,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:29:33,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 06:29:33,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753412654] [2024-11-27 06:29:33,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:29:33,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:29:33,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:29:33,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:29:33,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 06:29:33,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:33,660 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:29:33,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-11-27 06:29:33,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:33,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:29:33,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:29:33,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:33,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:33,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:29:33,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:29:33,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:29:33,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 06:29:33,823 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 06:29:33,823 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:29:33,823 INFO L139 ounterexampleChecker]: Examining path program with hash 1302167612, occurence #2 [2024-11-27 06:29:33,823 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:29:33,823 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:29:33,824 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:29:33,824 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-27 06:29:33,844 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:29:33,844 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-27 06:29:33,844 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:29:33,845 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-11-27 06:29:33,845 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:29:33,845 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-27 06:29:33,845 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:29:33,845 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-27 06:29:33,845 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:29:33,845 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-27 06:29:33,845 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:29:33,845 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2024-11-27 06:29:33,845 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:29:33,845 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2024-11-27 06:29:33,845 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:29:33,846 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 46 [2024-11-27 06:29:33,846 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:29:33,846 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:29:33,846 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:29:33,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:29:33,846 INFO L85 PathProgramCache]: Analyzing trace with hash -824365846, now seen corresponding path program 1 times [2024-11-27 06:29:33,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:29:33,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172852975] [2024-11-27 06:29:33,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:29:33,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:29:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:29:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:29:34,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:29:34,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172852975] [2024-11-27 06:29:34,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172852975] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:29:34,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582142262] [2024-11-27 06:29:34,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:29:34,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:29:34,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:29:34,070 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:29:34,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 06:29:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:29:34,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 06:29:34,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:29:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 06:29:34,378 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 06:29:34,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582142262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:29:34,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 06:29:34,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-27 06:29:34,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618491100] [2024-11-27 06:29:34,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:29:34,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:29:34,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:29:34,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:29:34,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 06:29:34,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:34,380 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:29:34,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-11-27 06:29:34,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:34,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:29:34,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:29:34,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:29:34,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:34,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:34,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:29:34,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:29:34,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:29:34,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:29:34,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 06:29:34,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:29:34,739 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 06:29:34,739 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:29:34,739 INFO L139 ounterexampleChecker]: Examining path program with hash 1302167612, occurence #3 [2024-11-27 06:29:34,739 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:29:34,739 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:29:34,739 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:29:34,739 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-27 06:29:34,739 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:29:34,739 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-27 06:29:34,740 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:29:34,740 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-27 06:29:34,740 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:29:34,740 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2024-11-27 06:29:34,740 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:29:34,740 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-11-27 06:29:34,740 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:29:34,740 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2024-11-27 06:29:34,740 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:29:34,740 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2024-11-27 06:29:34,740 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:29:34,740 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-11-27 06:29:34,740 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:29:34,740 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2024-11-27 06:29:34,740 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:29:34,741 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:29:34,741 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:29:34,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:29:34,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1659326523, now seen corresponding path program 1 times [2024-11-27 06:29:34,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:29:34,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162358739] [2024-11-27 06:29:34,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:29:34,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:29:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:29:34,932 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 06:29:34,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:29:34,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162358739] [2024-11-27 06:29:34,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162358739] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:29:34,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534942945] [2024-11-27 06:29:34,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:29:34,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:29:34,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:29:34,938 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:29:34,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 06:29:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:29:35,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:29:35,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:29:35,325 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:29:35,329 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:29:35,568 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:29:35,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534942945] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:29:35,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:29:35,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-27 06:29:35,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754871832] [2024-11-27 06:29:35,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:29:35,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 06:29:35,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:29:35,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 06:29:35,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-27 06:29:35,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:35,574 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:29:35,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 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) [2024-11-27 06:29:35,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:35,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:29:35,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:29:35,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:29:35,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:29:35,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:38,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:29:38,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:29:38,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:29:38,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:29:38,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:29:38,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:29:38,182 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-27 06:29:38,182 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-27 06:29:38,183 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-27 06:29:38,183 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-27 06:29:38,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 06:29:38,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-27 06:29:38,391 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-27 06:29:38,395 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 06:29:38,395 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 06:29:38,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-11-27 06:29:38,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 06:29:38 BasicIcfg [2024-11-27 06:29:38,409 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 06:29:38,410 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 06:29:38,410 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 06:29:38,410 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 06:29:38,411 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:29:30" (3/4) ... [2024-11-27 06:29:38,413 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 06:29:38,416 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-27 06:29:38,416 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-27 06:29:38,416 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-27 06:29:38,422 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 184 nodes and edges [2024-11-27 06:29:38,423 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2024-11-27 06:29:38,423 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-27 06:29:38,423 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-27 06:29:38,521 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/witness.graphml [2024-11-27 06:29:38,521 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/witness.yml [2024-11-27 06:29:38,521 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 06:29:38,522 INFO L158 Benchmark]: Toolchain (without parser) took 9479.78ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 92.2MB in the beginning and 101.3MB in the end (delta: -9.1MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2024-11-27 06:29:38,522 INFO L158 Benchmark]: CDTParser took 1.35ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 06:29:38,523 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.86ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 79.1MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 06:29:38,523 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.61ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 76.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 06:29:38,523 INFO L158 Benchmark]: Boogie Preprocessor took 39.01ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 75.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 06:29:38,524 INFO L158 Benchmark]: RCFGBuilder took 1438.32ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 47.0MB in the end (delta: 28.1MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-11-27 06:29:38,524 INFO L158 Benchmark]: TraceAbstraction took 7508.44ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 46.4MB in the beginning and 107.6MB in the end (delta: -61.2MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2024-11-27 06:29:38,524 INFO L158 Benchmark]: Witness Printer took 111.05ms. Allocated memory is still 151.0MB. Free memory was 107.6MB in the beginning and 101.3MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 06:29:38,527 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.86ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 79.1MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.61ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 76.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.01ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 75.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1438.32ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 47.0MB in the end (delta: 28.1MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7508.44ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 46.4MB in the beginning and 107.6MB in the end (delta: -61.2MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. * Witness Printer took 111.05ms. Allocated memory is still 151.0MB. Free memory was 107.6MB in the beginning and 101.3MB in the end (delta: 6.3MB). 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: 33786, independent: 27986, independent conditional: 26153, independent unconditional: 1833, dependent: 5800, dependent conditional: 5790, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 28183, independent: 27986, independent conditional: 26153, independent unconditional: 1833, dependent: 197, dependent conditional: 187, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 28183, independent: 27986, independent conditional: 26153, independent unconditional: 1833, dependent: 197, dependent conditional: 187, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 28575, independent: 27986, independent conditional: 26153, independent unconditional: 1833, dependent: 589, dependent conditional: 579, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 28575, independent: 27986, independent conditional: 0, independent unconditional: 27986, dependent: 589, dependent conditional: 112, dependent unconditional: 477, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 28575, independent: 27986, independent conditional: 0, independent unconditional: 27986, dependent: 589, dependent conditional: 112, dependent unconditional: 477, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1399, independent: 1380, independent conditional: 0, independent unconditional: 1380, dependent: 19, dependent conditional: 9, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1399, independent: 1374, independent conditional: 0, independent unconditional: 1374, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 25, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 19, dependent conditional: 9, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 25, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 19, dependent conditional: 9, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 997, independent: 250, independent conditional: 0, independent unconditional: 250, dependent: 747, dependent conditional: 367, dependent unconditional: 380, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 28575, independent: 26606, independent conditional: 0, independent unconditional: 26606, dependent: 570, dependent conditional: 103, dependent unconditional: 467, unknown: 1399, unknown conditional: 9, unknown unconditional: 1390] , Statistics on independence cache: Total cache size (in pairs): 1399, Positive cache size: 1380, Positive conditional cache size: 0, Positive unconditional cache size: 1380, Negative cache size: 19, Negative conditional cache size: 9, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 26620, Maximal queried relation: 3, Independence queries for same thread: 5603, Persistent sets #1 benchmarks: Persistent set computation time: 1.0s, Number of persistent set computation: 1630, Number of trivial persistent sets: 1172, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1843, independent: 1833, independent conditional: 0, independent unconditional: 1833, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 33786, independent: 27986, independent conditional: 26153, independent unconditional: 1833, dependent: 5800, dependent conditional: 5790, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 28183, independent: 27986, independent conditional: 26153, independent unconditional: 1833, dependent: 197, dependent conditional: 187, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 28183, independent: 27986, independent conditional: 26153, independent unconditional: 1833, dependent: 197, dependent conditional: 187, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 28575, independent: 27986, independent conditional: 26153, independent unconditional: 1833, dependent: 589, dependent conditional: 579, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 28575, independent: 27986, independent conditional: 0, independent unconditional: 27986, dependent: 589, dependent conditional: 112, dependent unconditional: 477, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 28575, independent: 27986, independent conditional: 0, independent unconditional: 27986, dependent: 589, dependent conditional: 112, dependent unconditional: 477, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1399, independent: 1380, independent conditional: 0, independent unconditional: 1380, dependent: 19, dependent conditional: 9, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1399, independent: 1374, independent conditional: 0, independent unconditional: 1374, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 25, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 19, dependent conditional: 9, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 25, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 19, dependent conditional: 9, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 997, independent: 250, independent conditional: 0, independent unconditional: 250, dependent: 747, dependent conditional: 367, dependent unconditional: 380, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 28575, independent: 26606, independent conditional: 0, independent unconditional: 26606, dependent: 570, dependent conditional: 103, dependent unconditional: 467, unknown: 1399, unknown conditional: 9, unknown unconditional: 1390] , Statistics on independence cache: Total cache size (in pairs): 1399, Positive cache size: 1380, Positive conditional cache size: 0, Positive unconditional cache size: 1380, Negative cache size: 19, Negative conditional cache size: 9, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 26620, Maximal queried relation: 3, Independence queries for same thread: 5603 - PositiveResult [Line: 156]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 72 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 4.0s, 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: 34, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 368 NumberOfCodeBlocks, 355 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 411 ConstructedInterpolants, 0 QuantifiedInterpolants, 1043 SizeOfPredicates, 3 NumberOfNonLiveVariables, 663 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 47/51 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]: 20, ConditionCalculationTime [ms]: 0, ConditionCalculations: 12, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-27 06:29:38,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e1c22d-0304-4709-82f4-bddfa5822458/bin/ugemcutter-verify-fG3NtRWMco/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 Writing output log to file Ultimate.log Result: TRUE