./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-send-receive-alt.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_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/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_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/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_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/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 d2a575889db2e07e0d6a3fd2f8635ba39d2afc2713d706bcd4d4aaa862bed792 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 06:36:14,762 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 06:36:14,871 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-27 06:36:14,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 06:36:14,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 06:36:14,919 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 06:36:14,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 06:36:14,920 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 06:36:14,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 06:36:14,920 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 06:36:14,920 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 06:36:14,921 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 06:36:14,921 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 06:36:14,921 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 06:36:14,921 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 06:36:14,921 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 06:36:14,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 06:36:14,921 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 06:36:14,921 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 06:36:14,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 06:36:14,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 06:36:14,922 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 06:36:14,922 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 06:36:14,922 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 06:36:14,922 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 06:36:14,922 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 06:36:14,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 06:36:14,923 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 06:36:14,923 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 06:36:14,923 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 06:36:14,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:36:14,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 06:36:14,923 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 06:36:14,923 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 06:36:14,923 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-27 06:36:14,923 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 06:36:14,924 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 06:36:14,924 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-27 06:36:14,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 06:36:14,924 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 06:36:14,924 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-27 06:36:14,924 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-27 06:36:14,924 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-27 06:36:14,924 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_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/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 -> d2a575889db2e07e0d6a3fd2f8635ba39d2afc2713d706bcd4d4aaa862bed792 [2024-11-27 06:36:15,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 06:36:15,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 06:36:15,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 06:36:15,240 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 06:36:15,241 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 06:36:15,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/../../sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c [2024-11-27 06:36:18,225 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/data/81d680c19/84cf9b9c44db4073aa35d12d728acda3/FLAG720bf82b2 [2024-11-27 06:36:18,504 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 06:36:18,505 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c [2024-11-27 06:36:18,531 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/data/81d680c19/84cf9b9c44db4073aa35d12d728acda3/FLAG720bf82b2 [2024-11-27 06:36:18,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/data/81d680c19/84cf9b9c44db4073aa35d12d728acda3 [2024-11-27 06:36:18,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 06:36:18,560 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 06:36:18,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 06:36:18,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 06:36:18,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 06:36:18,569 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:36:18" (1/1) ... [2024-11-27 06:36:18,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a8f5ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:36:18, skipping insertion in model container [2024-11-27 06:36:18,572 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:36:18" (1/1) ... [2024-11-27 06:36:18,590 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 06:36:18,782 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_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c[2676,2689] [2024-11-27 06:36:18,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:36:18,805 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 06:36:18,826 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_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/sv-benchmarks/c/weaver/popl20-send-receive-alt.wvr.c[2676,2689] [2024-11-27 06:36:18,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:36:18,848 INFO L204 MainTranslator]: Completed translation [2024-11-27 06:36:18,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:36:18 WrapperNode [2024-11-27 06:36:18,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 06:36:18,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 06:36:18,853 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 06:36:18,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 06:36:18,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:36:18" (1/1) ... [2024-11-27 06:36:18,878 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:36:18" (1/1) ... [2024-11-27 06:36:18,905 INFO L138 Inliner]: procedures = 23, calls = 27, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 136 [2024-11-27 06:36:18,906 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 06:36:18,907 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 06:36:18,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 06:36:18,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 06:36:18,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:36:18" (1/1) ... [2024-11-27 06:36:18,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:36:18" (1/1) ... [2024-11-27 06:36:18,919 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:36:18" (1/1) ... [2024-11-27 06:36:18,919 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:36:18" (1/1) ... [2024-11-27 06:36:18,926 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:36:18" (1/1) ... [2024-11-27 06:36:18,927 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:36:18" (1/1) ... [2024-11-27 06:36:18,931 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:36:18" (1/1) ... [2024-11-27 06:36:18,933 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:36:18" (1/1) ... [2024-11-27 06:36:18,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:36:18" (1/1) ... [2024-11-27 06:36:18,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 06:36:18,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 06:36:18,938 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 06:36:18,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 06:36:18,939 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:36:18" (1/1) ... [2024-11-27 06:36:18,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:36:18,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:36:18,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-27 06:36:18,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-27 06:36:19,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 06:36:19,016 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 06:36:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 06:36:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 06:36:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 06:36:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 06:36:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 06:36:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 06:36:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 06:36:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 06:36:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 06:36:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 06:36:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 06:36:19,020 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 06:36:19,169 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 06:36:19,171 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 06:36:19,641 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 06:36:19,641 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 06:36:19,990 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 06:36:19,991 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-27 06:36:19,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:36:19 BoogieIcfgContainer [2024-11-27 06:36:19,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 06:36:19,993 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 06:36:19,993 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 06:36:19,999 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 06:36:19,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 06:36:18" (1/3) ... [2024-11-27 06:36:20,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fcdbe45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:36:20, skipping insertion in model container [2024-11-27 06:36:20,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:36:18" (2/3) ... [2024-11-27 06:36:20,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fcdbe45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:36:20, skipping insertion in model container [2024-11-27 06:36:20,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:36:19" (3/3) ... [2024-11-27 06:36:20,004 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-send-receive-alt.wvr.c [2024-11-27 06:36:20,027 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 06:36:20,029 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-send-receive-alt.wvr.c that has 3 procedures, 27 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-27 06:36:20,029 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 06:36:20,095 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-27 06:36:20,177 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 06:36:20,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-27 06:36:20,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:36:20,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-27 06:36:20,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-27 06:36:20,262 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-27 06:36:20,286 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-27 06:36:20,299 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;@47d48978, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 06:36:20,300 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-27 06:36:20,556 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:36:20,557 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:36:20,557 INFO L139 ounterexampleChecker]: Examining path program with hash 1108383421, occurence #1 [2024-11-27 06:36:20,557 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:36:20,557 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:36:20,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:20,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1409752097, now seen corresponding path program 1 times [2024-11-27 06:36:20,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:36:20,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158690740] [2024-11-27 06:36:20,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:36:20,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:36:20,760 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 06:36:20,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:36:20,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158690740] [2024-11-27 06:36:20,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158690740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:36:20,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:36:20,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 06:36:20,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119995290] [2024-11-27 06:36:20,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:36:20,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 06:36:20,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:36:20,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 06:36:20,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 06:36:20,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:20,804 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:36:20,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 06:36:20,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:20,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:20,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 06:36:20,933 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:36:20,933 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:36:20,933 INFO L139 ounterexampleChecker]: Examining path program with hash -1674123992, occurence #1 [2024-11-27 06:36:20,933 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:36:20,933 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:36:20,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:20,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1509388705, now seen corresponding path program 1 times [2024-11-27 06:36:20,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:36:20,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046814152] [2024-11-27 06:36:20,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:36:20,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:36:21,222 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 06:36:21,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:36:21,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046814152] [2024-11-27 06:36:21,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046814152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:36:21,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:36:21,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 06:36:21,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392209118] [2024-11-27 06:36:21,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:36:21,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 06:36:21,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:36:21,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 06:36:21,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 06:36:21,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:21,226 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:36:21,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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 06:36:21,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:21,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:21,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:21,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:21,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 06:36:21,533 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:36:21,533 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:36:21,533 INFO L139 ounterexampleChecker]: Examining path program with hash -2135581389, occurence #1 [2024-11-27 06:36:21,533 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:36:21,533 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:36:21,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:21,534 INFO L85 PathProgramCache]: Analyzing trace with hash 263861391, now seen corresponding path program 1 times [2024-11-27 06:36:21,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:36:21,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494469214] [2024-11-27 06:36:21,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:36:21,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:36:22,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:36:22,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:36:22,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494469214] [2024-11-27 06:36:22,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494469214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:36:22,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:36:22,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 06:36:22,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187093680] [2024-11-27 06:36:22,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:36:22,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:36:22,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:36:22,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:36:22,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 06:36:22,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:22,013 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:36:22,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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 06:36:22,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:22,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:22,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:22,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:22,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:22,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:22,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 06:36:22,126 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:36:22,126 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:36:22,126 INFO L139 ounterexampleChecker]: Examining path program with hash -2135581389, occurence #2 [2024-11-27 06:36:22,126 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:36:22,127 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:36:22,129 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:22,129 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-11-27 06:36:22,153 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:36:22,153 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-27 06:36:22,153 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:36:22,153 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-27 06:36:22,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:22,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1979916018, now seen corresponding path program 1 times [2024-11-27 06:36:22,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:36:22,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213928082] [2024-11-27 06:36:22,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:36:22,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:36:22,284 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:36:22,285 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:36:22,285 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-27 06:36:22,285 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:22,285 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2024-11-27 06:36:22,285 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:22,285 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-27 06:36:22,285 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:36:22,285 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-27 06:36:22,285 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:22,285 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:36:22,285 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:36:22,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:22,286 INFO L85 PathProgramCache]: Analyzing trace with hash -607955324, now seen corresponding path program 1 times [2024-11-27 06:36:22,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:36:22,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986109306] [2024-11-27 06:36:22,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:36:22,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:36:22,702 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:36:22,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:36:22,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986109306] [2024-11-27 06:36:22,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986109306] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:36:22,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613859478] [2024-11-27 06:36:22,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:36:22,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:36:22,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:36:22,705 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:36:22,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 06:36:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:36:22,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:36:22,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:36:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:36:22,998 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:36:23,224 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:36:23,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613859478] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:36:23,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:36:23,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2024-11-27 06:36:23,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879443739] [2024-11-27 06:36:23,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:36:23,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 06:36:23,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:36:23,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 06:36:23,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-27 06:36:23,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:23,228 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:36:23,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 13 states have internal predecessors, (49), 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 06:36:23,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:23,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:23,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:23,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:23,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:23,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:23,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:23,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:36:23,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 06:36:23,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-27 06:36:23,665 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:36:23,665 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:36:23,665 INFO L139 ounterexampleChecker]: Examining path program with hash -2135581389, occurence #3 [2024-11-27 06:36:23,665 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:36:23,665 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:36:23,665 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:23,665 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-27 06:36:23,665 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:36:23,665 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-27 06:36:23,665 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:36:23,666 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-27 06:36:23,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:23,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1031119276, now seen corresponding path program 1 times [2024-11-27 06:36:23,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:36:23,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293907910] [2024-11-27 06:36:23,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:36:23,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:36:23,755 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:36:23,756 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:36:23,756 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-11-27 06:36:23,756 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:23,756 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-27 06:36:23,756 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:23,756 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-27 06:36:23,756 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:36:23,757 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-11-27 06:36:23,757 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:23,757 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:36:23,757 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:36:23,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:23,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1864469713, now seen corresponding path program 2 times [2024-11-27 06:36:23,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:36:23,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716211680] [2024-11-27 06:36:23,758 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:36:23,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:23,791 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:36:23,791 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:36:23,924 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:36:23,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:36:23,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716211680] [2024-11-27 06:36:23,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716211680] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:36:23,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740425265] [2024-11-27 06:36:23,925 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:36:23,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:36:23,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:36:23,927 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:36:23,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 06:36:24,060 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:36:24,060 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:36:24,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 06:36:24,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:36:24,118 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:36:24,118 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 06:36:24,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740425265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:36:24,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 06:36:24,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2024-11-27 06:36:24,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500164500] [2024-11-27 06:36:24,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:36:24,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:36:24,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:36:24,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:36:24,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-27 06:36:24,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:24,122 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:36:24,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 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 06:36:24,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:24,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:24,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:24,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:36:24,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:24,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:24,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:24,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:24,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:36:24,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:24,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 06:36:24,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-27 06:36:24,528 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:36:24,528 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:36:24,528 INFO L139 ounterexampleChecker]: Examining path program with hash -1573016545, occurence #1 [2024-11-27 06:36:24,528 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:36:24,528 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:36:24,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:24,529 INFO L85 PathProgramCache]: Analyzing trace with hash 2038314263, now seen corresponding path program 3 times [2024-11-27 06:36:24,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:36:24,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926956526] [2024-11-27 06:36:24,529 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:36:24,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:24,574 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 06:36:24,574 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:36:24,835 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:36:24,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:36:24,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926956526] [2024-11-27 06:36:24,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926956526] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:36:24,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138302588] [2024-11-27 06:36:24,836 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:36:24,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:36:24,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:36:24,840 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:36:24,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 06:36:24,948 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 06:36:24,948 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:36:24,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 06:36:24,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:36:25,090 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:36:25,091 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:36:25,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 06:36:25,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 24 [2024-11-27 06:36:25,394 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:36:25,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138302588] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:36:25,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:36:25,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-11-27 06:36:25,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921366518] [2024-11-27 06:36:25,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:36:25,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 06:36:25,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:36:25,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 06:36:25,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-27 06:36:25,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:25,396 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:36:25,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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 06:36:25,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:25,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:25,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:25,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:36:25,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:25,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:36:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:36:25,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 06:36:25,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-27 06:36:25,907 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:36:25,907 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:36:25,907 INFO L139 ounterexampleChecker]: Examining path program with hash 1314208991, occurence #1 [2024-11-27 06:36:25,907 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:36:25,907 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:36:25,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:25,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1903042745, now seen corresponding path program 4 times [2024-11-27 06:36:25,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:36:25,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678730775] [2024-11-27 06:36:25,908 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:36:25,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:25,945 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:36:25,945 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:36:26,321 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 06:36:26,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:36:26,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678730775] [2024-11-27 06:36:26,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678730775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:36:26,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956593411] [2024-11-27 06:36:26,322 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:36:26,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:36:26,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:36:26,326 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:36:26,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 06:36:26,439 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:36:26,439 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:36:26,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 06:36:26,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:36:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 41 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 06:36:26,777 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:36:27,124 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 12 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 06:36:27,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956593411] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:36:27,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:36:27,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-27 06:36:27,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289690887] [2024-11-27 06:36:27,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:36:27,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 06:36:27,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:36:27,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 06:36:27,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-11-27 06:36:27,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:27,127 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:36:27,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.954545454545454) internal successors, (109), 21 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 06:36:27,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:27,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:27,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:27,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:36:27,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:27,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:36:27,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:27,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:27,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:27,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:27,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:36:27,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:27,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:36:27,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:36:27,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 06:36:27,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:36:27,486 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:36:27,486 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:36:27,486 INFO L139 ounterexampleChecker]: Examining path program with hash 1314208991, occurence #2 [2024-11-27 06:36:27,486 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:36:27,487 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:36:27,487 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:27,487 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-27 06:36:27,487 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:36:27,487 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-27 06:36:27,487 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:36:27,487 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-11-27 06:36:27,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:27,528 INFO L85 PathProgramCache]: Analyzing trace with hash 422584091, now seen corresponding path program 1 times [2024-11-27 06:36:27,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:36:27,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555204519] [2024-11-27 06:36:27,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:36:27,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:36:27,563 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:36:27,563 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:36:27,563 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 25 is hopeless, skipping. [2024-11-27 06:36:27,563 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2024-11-27 06:36:27,563 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:27,563 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 38 is hopeless, skipping. [2024-11-27 06:36:27,563 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2024-11-27 06:36:27,564 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:27,564 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2024-11-27 06:36:27,564 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:27,564 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2024-11-27 06:36:27,564 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:36:27,564 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2024-11-27 06:36:27,564 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:27,564 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:36:27,564 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:36:27,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:27,565 INFO L85 PathProgramCache]: Analyzing trace with hash -427742041, now seen corresponding path program 5 times [2024-11-27 06:36:27,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:36:27,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936002429] [2024-11-27 06:36:27,565 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:36:27,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:27,586 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:36:27,586 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:36:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 06:36:27,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:36:27,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936002429] [2024-11-27 06:36:27,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936002429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:36:27,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:36:27,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 06:36:27,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958650967] [2024-11-27 06:36:27,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:36:27,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:36:27,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:36:27,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:36:27,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 06:36:27,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:27,716 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:36:27,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 06:36:27,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:27,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:27,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:27,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:36:27,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:27,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:36:27,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:36:27,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:27,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:27,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:27,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:27,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:36:27,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:27,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:36:27,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:36:27,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:27,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,SelfDestructingSolverStorable9 [2024-11-27 06:36:27,859 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:36:27,859 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:36:27,859 INFO L139 ounterexampleChecker]: Examining path program with hash 358455936, occurence #1 [2024-11-27 06:36:27,859 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:36:27,859 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:36:27,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:27,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1567594681, now seen corresponding path program 1 times [2024-11-27 06:36:27,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:36:27,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144166262] [2024-11-27 06:36:27,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:36:27,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:27,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:36:28,330 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 33 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:36:28,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:36:28,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144166262] [2024-11-27 06:36:28,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144166262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:36:28,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849976517] [2024-11-27 06:36:28,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:36:28,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:36:28,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:36:28,333 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:36:28,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 06:36:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:36:28,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 06:36:28,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:36:28,863 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:36:28,863 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:36:29,392 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 51 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:36:29,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849976517] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:36:29,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:36:29,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 31 [2024-11-27 06:36:29,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695011264] [2024-11-27 06:36:29,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:36:29,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-27 06:36:29,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:36:29,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-27 06:36:29,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=780, Unknown=0, NotChecked=0, Total=992 [2024-11-27 06:36:29,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:29,395 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:36:29,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.125) internal successors, (132), 31 states have internal predecessors, (132), 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 06:36:29,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:29,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:29,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:29,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:36:29,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:29,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:36:29,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:36:29,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:29,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:29,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:36:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:36:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:36:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:36:29,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 06:36:29,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:36:29,836 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:36:29,836 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:36:29,836 INFO L139 ounterexampleChecker]: Examining path program with hash 358455936, occurence #2 [2024-11-27 06:36:29,836 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:36:29,837 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:36:29,837 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:29,838 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-27 06:36:29,838 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:36:29,838 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-27 06:36:29,838 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:36:29,838 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-27 06:36:29,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:29,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1530805, now seen corresponding path program 1 times [2024-11-27 06:36:29,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:36:29,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224159805] [2024-11-27 06:36:29,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:36:29,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:36:29,898 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:36:29,899 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:36:29,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-27 06:36:29,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:29,946 INFO L85 PathProgramCache]: Analyzing trace with hash 858920511, now seen corresponding path program 1 times [2024-11-27 06:36:29,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:36:29,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294259815] [2024-11-27 06:36:29,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:36:29,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:36:29,989 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:36:29,990 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:36:29,990 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 34 is hopeless, skipping. [2024-11-27 06:36:29,990 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-11-27 06:36:29,990 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:29,990 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 47 is hopeless, skipping. [2024-11-27 06:36:29,990 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2024-11-27 06:36:29,990 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:29,990 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2024-11-27 06:36:29,990 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:29,990 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2024-11-27 06:36:29,990 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:36:29,990 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-11-27 06:36:29,990 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:29,991 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:36:29,991 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:36:29,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:29,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1909110428, now seen corresponding path program 2 times [2024-11-27 06:36:29,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:36:29,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678455290] [2024-11-27 06:36:29,991 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:36:29,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:30,159 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:36:30,164 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:36:35,303 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 13 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:36:35,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:36:35,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678455290] [2024-11-27 06:36:35,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678455290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:36:35,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677972842] [2024-11-27 06:36:35,304 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:36:35,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:36:35,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:36:35,307 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:36:35,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 06:36:35,453 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:36:35,453 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:36:35,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-27 06:36:35,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:36:35,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-11-27 06:36:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 7 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:36:37,533 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:36:40,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 281 treesize of output 251 [2024-11-27 06:36:40,611 INFO L349 Elim1Store]: treesize reduction 100, result has 58.5 percent of original size [2024-11-27 06:36:40,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 2656 treesize of output 1674 [2024-11-27 06:36:53,782 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 1 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:36:53,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677972842] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:36:53,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:36:53,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 18] total 53 [2024-11-27 06:36:53,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522956103] [2024-11-27 06:36:53,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:36:53,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-27 06:36:53,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:36:53,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-27 06:36:53,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2024-11-27 06:36:53,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:53,786 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:36:53,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 3.2962962962962963) internal successors, (178), 53 states have internal predecessors, (178), 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 06:36:53,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:53,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:53,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:53,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:36:53,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:53,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:36:53,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:36:53,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:53,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:36:53,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:56,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:56,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:36:56,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:56,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:36:56,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:56,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:36:56,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:36:56,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:36:56,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:36:56,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:36:56,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 06:36:56,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14 [2024-11-27 06:36:56,330 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:36:56,330 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:36:56,330 INFO L139 ounterexampleChecker]: Examining path program with hash 358455936, occurence #3 [2024-11-27 06:36:56,330 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:36:56,331 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:36:56,331 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:56,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-27 06:36:56,347 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:36:56,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-11-27 06:36:56,347 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:36:56,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-27 06:36:56,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:56,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1261198168, now seen corresponding path program 1 times [2024-11-27 06:36:56,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:36:56,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634664491] [2024-11-27 06:36:56,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:36:56,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:36:56,419 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:36:56,423 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:36:56,424 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-27 06:36:56,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:56,453 INFO L85 PathProgramCache]: Analyzing trace with hash 131461532, now seen corresponding path program 1 times [2024-11-27 06:36:56,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:36:56,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285940727] [2024-11-27 06:36:56,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:36:56,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:36:56,504 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:36:56,504 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:36:56,504 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 41 is hopeless, skipping. [2024-11-27 06:36:56,504 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2024-11-27 06:36:56,504 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:56,504 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 54 is hopeless, skipping. [2024-11-27 06:36:56,504 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-11-27 06:36:56,505 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:56,505 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 64 [2024-11-27 06:36:56,505 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:56,505 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 66 [2024-11-27 06:36:56,505 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:36:56,505 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2024-11-27 06:36:56,505 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:36:56,505 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:36:56,505 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:36:56,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:56,506 INFO L85 PathProgramCache]: Analyzing trace with hash 637591097, now seen corresponding path program 3 times [2024-11-27 06:36:56,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:36:56,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908940766] [2024-11-27 06:36:56,506 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:36:56,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:36:56,620 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 06:36:56,620 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:36:57,933 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-27 06:36:57,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:36:57,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908940766] [2024-11-27 06:36:57,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908940766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:36:57,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699943267] [2024-11-27 06:36:57,934 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:36:57,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:36:57,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:36:57,936 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:36:57,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 06:36:58,363 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 06:36:58,364 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:36:58,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-27 06:36:58,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:36:59,235 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 15 proven. 67 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-27 06:36:59,235 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:37:00,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 06:37:00,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 176 treesize of output 284 [2024-11-27 06:37:01,273 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 1 proven. 69 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-27 06:37:01,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699943267] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:37:01,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:37:01,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 12] total 32 [2024-11-27 06:37:01,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167821125] [2024-11-27 06:37:01,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:37:01,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-27 06:37:01,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:37:01,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-27 06:37:01,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=878, Unknown=0, NotChecked=0, Total=1056 [2024-11-27 06:37:01,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:37:01,275 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:37:01,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.636363636363637) internal successors, (153), 32 states have internal predecessors, (153), 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 06:37:01,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:37:01,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:37:01,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:01,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:37:01,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:01,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:37:01,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:37:01,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:01,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:37:01,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:37:01,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:37:02,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:37:02,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:37:02,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:02,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:37:02,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:02,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:37:02,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:37:02,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:02,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:37:02,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:37:02,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:37:02,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 06:37:02,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15,SelfDestructingSolverStorable16,SelfDestructingSolverStorable17 [2024-11-27 06:37:02,602 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:37:02,602 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:37:02,602 INFO L139 ounterexampleChecker]: Examining path program with hash -1073060405, occurence #1 [2024-11-27 06:37:02,602 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:37:02,602 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:37:02,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:37:02,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1314193257, now seen corresponding path program 4 times [2024-11-27 06:37:02,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:37:02,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709628336] [2024-11-27 06:37:02,603 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:37:02,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:37:02,652 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:37:02,652 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:37:04,023 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 8 proven. 77 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-27 06:37:04,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:37:04,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709628336] [2024-11-27 06:37:04,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709628336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:37:04,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855579097] [2024-11-27 06:37:04,024 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:37:04,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:37:04,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:37:04,028 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:37:04,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 06:37:04,171 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:37:04,171 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:37:04,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-11-27 06:37:04,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:37:05,774 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 15 proven. 147 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:37:05,775 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:37:07,390 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 06:37:07,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 211 treesize of output 400 [2024-11-27 06:37:08,365 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 4 proven. 81 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-27 06:37:08,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855579097] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:37:08,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:37:08,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 25, 14] total 50 [2024-11-27 06:37:08,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856426570] [2024-11-27 06:37:08,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:37:08,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-27 06:37:08,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:37:08,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-27 06:37:08,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=416, Invalid=2134, Unknown=0, NotChecked=0, Total=2550 [2024-11-27 06:37:08,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:37:08,368 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:37:08,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 3.980392156862745) internal successors, (203), 50 states have internal predecessors, (203), 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 06:37:08,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:37:08,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:37:08,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:08,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:37:08,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:08,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:37:08,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:37:08,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:08,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:37:08,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:37:08,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:37:08,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:37:10,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:37:10,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:37:10,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:10,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:37:10,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:10,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:37:10,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:37:10,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:10,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:37:10,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:37:10,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:37:10,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-27 06:37:10,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 06:37:11,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:37:11,139 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:37:11,139 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:37:11,139 INFO L139 ounterexampleChecker]: Examining path program with hash -1073060405, occurence #2 [2024-11-27 06:37:11,139 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:37:11,139 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:37:11,139 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:11,140 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-27 06:37:11,140 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:37:11,140 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-11-27 06:37:11,140 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:37:11,140 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-27 06:37:11,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:37:11,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1261198132, now seen corresponding path program 1 times [2024-11-27 06:37:11,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:37:11,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995651479] [2024-11-27 06:37:11,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:37:11,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:37:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:37:11,195 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:37:11,195 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:37:11,195 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-27 06:37:11,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:37:11,226 INFO L85 PathProgramCache]: Analyzing trace with hash 131461568, now seen corresponding path program 1 times [2024-11-27 06:37:11,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:37:11,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224748221] [2024-11-27 06:37:11,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:37:11,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:37:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:37:11,259 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:37:11,259 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:37:11,259 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 41 is hopeless, skipping. [2024-11-27 06:37:11,259 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2024-11-27 06:37:11,259 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:11,260 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 55 [2024-11-27 06:37:11,260 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:11,260 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2024-11-27 06:37:11,260 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:11,260 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 65 [2024-11-27 06:37:11,260 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:11,260 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 69 is hopeless, skipping. [2024-11-27 06:37:11,260 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 76 [2024-11-27 06:37:11,260 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:11,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 80 [2024-11-27 06:37:11,261 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:11,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 83 [2024-11-27 06:37:11,261 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:11,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 85 [2024-11-27 06:37:11,261 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:11,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2024-11-27 06:37:11,261 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:37:11,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2024-11-27 06:37:11,261 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:11,262 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:37:11,262 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:37:11,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:37:11,262 INFO L85 PathProgramCache]: Analyzing trace with hash 916910745, now seen corresponding path program 5 times [2024-11-27 06:37:11,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:37:11,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475985803] [2024-11-27 06:37:11,263 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:37:11,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:37:11,621 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-27 06:37:11,621 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:37:23,356 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 2 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:37:23,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:37:23,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475985803] [2024-11-27 06:37:23,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475985803] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:37:23,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444900241] [2024-11-27 06:37:23,356 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:37:23,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:37:23,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:37:23,359 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:37:23,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 06:37:23,694 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-27 06:37:23,694 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:37:23,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-27 06:37:23,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:37:26,109 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 15 proven. 187 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:37:26,109 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:37:28,657 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 06:37:28,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 244 treesize of output 534 [2024-11-27 06:37:30,294 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 23 proven. 107 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-27 06:37:30,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444900241] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:37:30,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:37:30,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 25, 16] total 70 [2024-11-27 06:37:30,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318124406] [2024-11-27 06:37:30,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:37:30,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2024-11-27 06:37:30,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:37:30,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2024-11-27 06:37:30,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=451, Invalid=4519, Unknown=0, NotChecked=0, Total=4970 [2024-11-27 06:37:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:37:30,297 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:37:30,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 3.5492957746478875) internal successors, (252), 70 states have internal predecessors, (252), 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 06:37:30,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:37:30,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:37:30,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:30,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:37:30,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:30,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:37:30,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:37:30,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:30,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:37:30,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:37:30,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:37:30,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-11-27 06:37:30,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:37:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:37:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:37:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:37:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:37:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:37:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:37:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:37:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:37:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:37:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-27 06:37:34,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-27 06:37:34,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-27 06:37:34,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19,SelfDestructingSolverStorable20,SelfDestructingSolverStorable21 [2024-11-27 06:37:34,570 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:37:34,570 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:37:34,571 INFO L139 ounterexampleChecker]: Examining path program with hash -1073060405, occurence #3 [2024-11-27 06:37:34,571 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:37:34,571 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:37:34,571 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:34,571 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-27 06:37:34,571 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:37:34,571 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-27 06:37:34,571 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:37:34,571 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-27 06:37:34,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:37:34,595 INFO L85 PathProgramCache]: Analyzing trace with hash -659173619, now seen corresponding path program 1 times [2024-11-27 06:37:34,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:37:34,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40394419] [2024-11-27 06:37:34,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:37:34,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:37:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:37:34,617 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:37:34,617 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:37:34,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2024-11-27 06:37:34,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:37:34,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1265418497, now seen corresponding path program 1 times [2024-11-27 06:37:34,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:37:34,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312614023] [2024-11-27 06:37:34,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:37:34,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:37:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:37:34,736 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:37:34,737 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:37:34,737 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 42 is hopeless, skipping. [2024-11-27 06:37:34,737 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2024-11-27 06:37:34,737 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:34,737 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 56 [2024-11-27 06:37:34,737 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:34,737 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-11-27 06:37:34,737 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:34,737 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 66 [2024-11-27 06:37:34,738 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:34,738 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 70 is hopeless, skipping. [2024-11-27 06:37:34,738 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2024-11-27 06:37:34,738 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:34,738 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 81 [2024-11-27 06:37:34,738 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:34,738 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 84 [2024-11-27 06:37:34,738 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:34,738 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2024-11-27 06:37:34,738 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:34,739 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2024-11-27 06:37:34,739 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:34,739 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 91 [2024-11-27 06:37:34,739 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:37:34,739 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 93 [2024-11-27 06:37:34,739 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:37:34,739 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:37:34,739 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:37:34,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:37:34,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1901666764, now seen corresponding path program 6 times [2024-11-27 06:37:34,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:37:34,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811526923] [2024-11-27 06:37:34,740 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 06:37:34,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:37:34,973 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-11-27 06:37:34,973 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:37:43,106 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 8 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:37:43,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:37:43,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811526923] [2024-11-27 06:37:43,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811526923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:37:43,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233076708] [2024-11-27 06:37:43,109 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 06:37:43,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:37:43,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:37:43,117 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:37:43,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 06:37:44,353 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-11-27 06:37:44,353 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:37:44,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 89 conjuncts are in the unsatisfiable core [2024-11-27 06:37:44,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:37:45,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 06:37:49,214 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 15 proven. 213 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:37:49,214 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:37:55,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 308 treesize of output 276 [2024-11-27 06:37:57,052 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 06:37:57,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 17334 treesize of output 10863 [2024-11-27 06:46:54,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 307 treesize of output 275 [2024-11-27 06:46:55,399 INFO L349 Elim1Store]: treesize reduction 592, result has 5.3 percent of original size [2024-11-27 06:46:55,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 17078 treesize of output 10015 [2024-11-27 06:46:58,954 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 16 proven. 135 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-27 06:46:58,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233076708] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:46:58,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:46:58,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 30, 20] total 80 [2024-11-27 06:46:58,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612352833] [2024-11-27 06:46:58,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:46:58,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2024-11-27 06:46:58,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:46:58,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2024-11-27 06:46:58,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=639, Invalid=5841, Unknown=0, NotChecked=0, Total=6480 [2024-11-27 06:46:58,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:46:58,966 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:46:58,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 3.2839506172839505) internal successors, (266), 80 states have internal predecessors, (266), 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 06:46:58,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:46:58,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:46:58,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:46:58,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:46:58,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:46:58,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:46:58,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:46:58,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:46:58,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:46:58,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:46:58,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:46:58,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-11-27 06:46:58,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-11-27 06:46:58,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:47:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:47:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:47:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:47:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:47:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:47:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:47:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:47:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:47:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:47:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:47:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:47:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-27 06:47:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-27 06:47:07,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-27 06:47:07,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 06:47:07,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,SelfDestructingSolverStorable23,SelfDestructingSolverStorable24,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:47:07,220 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:47:07,220 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:47:07,220 INFO L139 ounterexampleChecker]: Examining path program with hash -1073060405, occurence #4 [2024-11-27 06:47:07,220 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:47:07,221 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:47:07,221 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:07,221 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-27 06:47:07,221 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:47:07,221 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-27 06:47:07,221 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:47:07,221 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-27 06:47:07,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:47:07,263 INFO L85 PathProgramCache]: Analyzing trace with hash 823716446, now seen corresponding path program 1 times [2024-11-27 06:47:07,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:47:07,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398030868] [2024-11-27 06:47:07,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:47:07,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:47:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:47:07,317 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:47:07,318 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:47:07,318 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-27 06:47:07,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:47:07,355 INFO L85 PathProgramCache]: Analyzing trace with hash 2058344274, now seen corresponding path program 1 times [2024-11-27 06:47:07,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:47:07,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096049770] [2024-11-27 06:47:07,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:47:07,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:47:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:47:07,503 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:47:07,504 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:47:07,504 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 43 is hopeless, skipping. [2024-11-27 06:47:07,504 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2024-11-27 06:47:07,504 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:07,505 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2024-11-27 06:47:07,505 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:07,505 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 62 [2024-11-27 06:47:07,505 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:07,505 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 67 [2024-11-27 06:47:07,505 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:07,506 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2024-11-27 06:47:07,506 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:07,506 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2024-11-27 06:47:07,506 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:07,506 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 81 is hopeless, skipping. [2024-11-27 06:47:07,506 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 88 [2024-11-27 06:47:07,507 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:07,507 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 92 [2024-11-27 06:47:07,507 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:07,507 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 95 [2024-11-27 06:47:07,507 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:07,507 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 98 [2024-11-27 06:47:07,507 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:07,508 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 101 [2024-11-27 06:47:07,508 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:07,508 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2024-11-27 06:47:07,508 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:07,508 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 105 [2024-11-27 06:47:07,509 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:47:07,509 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 107 [2024-11-27 06:47:07,509 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:07,509 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:47:07,509 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:47:07,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:47:07,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1266092825, now seen corresponding path program 7 times [2024-11-27 06:47:07,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:47:07,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59904626] [2024-11-27 06:47:07,511 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 06:47:07,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:47:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:47:35,251 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 1 proven. 311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:47:35,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:47:35,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59904626] [2024-11-27 06:47:35,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59904626] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:47:35,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813565927] [2024-11-27 06:47:35,251 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 06:47:35,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:47:35,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:47:35,256 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:47:35,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 06:47:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:47:35,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-27 06:47:35,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:47:41,574 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 15 proven. 296 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:47:41,574 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:47:47,657 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 06:47:47,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 312 treesize of output 864 [2024-11-27 06:47:50,716 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 49 proven. 158 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-27 06:47:50,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813565927] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:47:50,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:47:50,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 33, 20] total 87 [2024-11-27 06:47:50,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364274084] [2024-11-27 06:47:50,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:47:50,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2024-11-27 06:47:50,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:47:50,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2024-11-27 06:47:50,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=582, Invalid=7074, Unknown=0, NotChecked=0, Total=7656 [2024-11-27 06:47:50,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:47:50,722 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:47:50,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 3.477272727272727) internal successors, (306), 87 states have internal predecessors, (306), 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 06:47:50,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:47:50,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:47:50,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:47:50,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:47:50,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:47:50,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:47:50,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:47:50,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:47:50,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:47:50,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:47:50,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:47:50,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-11-27 06:47:50,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-11-27 06:47:50,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-11-27 06:47:50,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:47:59,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:47:59,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:47:59,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:47:59,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:47:59,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:47:59,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:47:59,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:47:59,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:47:59,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:47:59,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:47:59,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:47:59,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-27 06:47:59,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-27 06:47:59,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-27 06:47:59,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-27 06:47:59,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 06:47:59,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,SelfDestructingSolverStorable26,SelfDestructingSolverStorable27,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:47:59,755 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:47:59,756 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:47:59,756 INFO L139 ounterexampleChecker]: Examining path program with hash -1073060405, occurence #5 [2024-11-27 06:47:59,756 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:47:59,756 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:47:59,756 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:59,756 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-11-27 06:47:59,756 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:47:59,756 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-11-27 06:47:59,756 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:47:59,756 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-27 06:47:59,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:47:59,787 INFO L85 PathProgramCache]: Analyzing trace with hash -451332637, now seen corresponding path program 1 times [2024-11-27 06:47:59,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:47:59,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500618109] [2024-11-27 06:47:59,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:47:59,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:47:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:47:59,812 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:47:59,812 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:47:59,812 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2024-11-27 06:47:59,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:47:59,840 INFO L85 PathProgramCache]: Analyzing trace with hash 869238743, now seen corresponding path program 1 times [2024-11-27 06:47:59,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:47:59,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710196258] [2024-11-27 06:47:59,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:47:59,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:47:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:47:59,873 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:47:59,873 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:47:59,873 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 44 is hopeless, skipping. [2024-11-27 06:47:59,873 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 53 [2024-11-27 06:47:59,873 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:59,873 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 58 [2024-11-27 06:47:59,874 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:59,874 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 63 [2024-11-27 06:47:59,874 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:59,874 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2024-11-27 06:47:59,874 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:59,874 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 73 [2024-11-27 06:47:59,874 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:59,874 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 78 [2024-11-27 06:47:59,875 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:59,875 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 82 is hopeless, skipping. [2024-11-27 06:47:59,875 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2024-11-27 06:47:59,875 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:59,875 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 93 [2024-11-27 06:47:59,875 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:59,875 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2024-11-27 06:47:59,875 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:59,876 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2024-11-27 06:47:59,876 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:59,876 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 102 [2024-11-27 06:47:59,876 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:59,876 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 105 [2024-11-27 06:47:59,876 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:59,876 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 107 [2024-11-27 06:47:59,876 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:59,877 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 109 [2024-11-27 06:47:59,877 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:47:59,877 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 111 [2024-11-27 06:47:59,877 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:47:59,877 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:47:59,877 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:47:59,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:47:59,878 INFO L85 PathProgramCache]: Analyzing trace with hash 767574260, now seen corresponding path program 8 times [2024-11-27 06:47:59,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:47:59,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146634630] [2024-11-27 06:47:59,878 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:47:59,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:48:00,209 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:48:00,209 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:48:26,317 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 0 proven. 341 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:48:26,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:48:26,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146634630] [2024-11-27 06:48:26,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146634630] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:48:26,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222908211] [2024-11-27 06:48:26,318 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:48:26,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:48:26,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:48:26,321 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:48:26,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 06:48:26,585 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:48:26,585 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:48:26,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 103 conjuncts are in the unsatisfiable core [2024-11-27 06:48:26,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:48:33,558 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 15 proven. 325 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:48:33,559 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:48:42,033 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 06:48:42,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 347 treesize of output 1060 [2024-11-27 06:48:47,711 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 38 proven. 183 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-27 06:48:47,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222908211] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:48:47,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:48:47,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 36, 22] total 95 [2024-11-27 06:48:47,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621048410] [2024-11-27 06:48:47,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:48:47,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-27 06:48:47,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:48:47,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-27 06:48:47,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=603, Invalid=8517, Unknown=0, NotChecked=0, Total=9120 [2024-11-27 06:48:47,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:48:47,718 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:48:47,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 3.3020833333333335) internal successors, (317), 95 states have internal predecessors, (317), 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 06:48:47,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:48:47,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:48:47,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:48:47,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:48:47,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:48:47,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:48:47,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:48:47,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:48:47,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:48:47,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:48:47,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:48:47,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-11-27 06:48:47,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-11-27 06:48:47,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-11-27 06:48:47,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-11-27 06:48:47,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:49:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:49:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:49:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:49:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:49:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:49:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:49:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:49:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:49:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:49:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:49:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:49:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-27 06:49:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-27 06:49:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-27 06:49:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-27 06:49:00,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-27 06:49:00,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-27 06:49:00,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,SelfDestructingSolverStorable30,SelfDestructingSolverStorable28,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:49:00,610 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:49:00,610 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:49:00,610 INFO L139 ounterexampleChecker]: Examining path program with hash -1073060405, occurence #6 [2024-11-27 06:49:00,610 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:49:00,610 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:49:00,610 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,610 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-27 06:49:00,610 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:49:00,610 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-27 06:49:00,610 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:49:00,611 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-11-27 06:49:00,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:49:00,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1323149320, now seen corresponding path program 1 times [2024-11-27 06:49:00,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:49:00,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907257652] [2024-11-27 06:49:00,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:49:00,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:49:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:49:00,671 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:49:00,671 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:49:00,671 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2024-11-27 06:49:00,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:49:00,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1633295124, now seen corresponding path program 1 times [2024-11-27 06:49:00,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:49:00,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548510391] [2024-11-27 06:49:00,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:49:00,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:49:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:49:00,741 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:49:00,741 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:49:00,741 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 45 is hopeless, skipping. [2024-11-27 06:49:00,741 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2024-11-27 06:49:00,741 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,741 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2024-11-27 06:49:00,741 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,741 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 64 [2024-11-27 06:49:00,741 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,741 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2024-11-27 06:49:00,741 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,741 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 74 [2024-11-27 06:49:00,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2024-11-27 06:49:00,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 84 [2024-11-27 06:49:00,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2024-11-27 06:49:00,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,742 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 93 is hopeless, skipping. [2024-11-27 06:49:00,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 100 [2024-11-27 06:49:00,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,743 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 104 [2024-11-27 06:49:00,743 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,743 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 107 [2024-11-27 06:49:00,743 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,743 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2024-11-27 06:49:00,743 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,743 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 113 [2024-11-27 06:49:00,743 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,743 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 116 [2024-11-27 06:49:00,743 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,743 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 119 [2024-11-27 06:49:00,743 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,744 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 121 [2024-11-27 06:49:00,744 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,744 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 123 [2024-11-27 06:49:00,744 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:49:00,744 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 125 [2024-11-27 06:49:00,744 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:49:00,744 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:49:00,745 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:49:00,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:49:00,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1098175385, now seen corresponding path program 9 times [2024-11-27 06:49:00,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:49:00,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718895942] [2024-11-27 06:49:00,746 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:49:00,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:49:01,135 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-11-27 06:49:01,136 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:49:04,791 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-27 06:49:04,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:49:04,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718895942] [2024-11-27 06:49:04,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718895942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:49:04,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406406912] [2024-11-27 06:49:04,791 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:49:04,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:49:04,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:49:04,795 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:49:04,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd92c7e-fef3-454e-b1d8-ec179aa7e7fe/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 06:49:06,437 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-11-27 06:49:06,437 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:49:06,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 104 conjuncts are in the unsatisfiable core [2024-11-27 06:49:06,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:49:07,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 06:49:12,759 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 15 proven. 407 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 06:49:12,760 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:49:23,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 420 treesize of output 376 [2024-11-27 06:49:34,706 WARN L286 SmtUtils]: Spent 10.50s on a formula simplification that was a NOOP. DAG size: 439 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-27 06:49:34,707 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 06:49:34,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 0 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 231 case distinctions, treesize of input 161141 treesize of output 84429 [2024-11-27 06:49:40,100 WARN L286 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 10835 DAG size of output: 644 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)