./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.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_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/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_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/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_3d4e1980-720e-4d4d-9a6c-036d8ac00510/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 b1e99af7c76570461a4b0ac70d664412f250ec04f47fd9ca8c0f85236f1348c6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 06:25:39,353 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 06:25:39,445 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-27 06:25:39,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 06:25:39,452 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 06:25:39,492 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 06:25:39,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 06:25:39,493 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 06:25:39,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 06:25:39,493 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 06:25:39,494 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 06:25:39,494 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 06:25:39,494 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 06:25:39,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 06:25:39,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 06:25:39,496 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 06:25:39,496 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 06:25:39,496 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 06:25:39,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 06:25:39,497 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 06:25:39,497 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 06:25:39,497 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 06:25:39,497 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 06:25:39,497 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 06:25:39,497 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 06:25:39,497 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 06:25:39,498 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 06:25:39,498 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 06:25:39,498 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 06:25:39,498 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 06:25:39,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:25:39,498 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 06:25:39,498 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 06:25:39,498 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 06:25:39,498 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-27 06:25:39,498 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 06:25:39,499 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 06:25:39,499 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-27 06:25:39,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 06:25:39,499 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 06:25:39,499 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-27 06:25:39,499 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-27 06:25:39,499 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-27 06:25:39,500 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_3d4e1980-720e-4d4d-9a6c-036d8ac00510/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 -> b1e99af7c76570461a4b0ac70d664412f250ec04f47fd9ca8c0f85236f1348c6 [2024-11-27 06:25:39,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 06:25:39,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 06:25:39,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 06:25:39,861 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 06:25:39,861 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 06:25:39,862 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2024-11-27 06:25:42,852 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/data/dcc047f4d/2fd4945160aa4e8ab43ccc670f09f300/FLAG64ddf0652 [2024-11-27 06:25:43,167 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 06:25:43,168 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2024-11-27 06:25:43,181 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/data/dcc047f4d/2fd4945160aa4e8ab43ccc670f09f300/FLAG64ddf0652 [2024-11-27 06:25:43,207 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/data/dcc047f4d/2fd4945160aa4e8ab43ccc670f09f300 [2024-11-27 06:25:43,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 06:25:43,213 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 06:25:43,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 06:25:43,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 06:25:43,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 06:25:43,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:25:43" (1/1) ... [2024-11-27 06:25:43,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7328d333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:25:43, skipping insertion in model container [2024-11-27 06:25:43,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:25:43" (1/1) ... [2024-11-27 06:25:43,254 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 06:25:43,490 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_3d4e1980-720e-4d4d-9a6c-036d8ac00510/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c[3694,3707] [2024-11-27 06:25:43,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:25:43,520 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 06:25:43,563 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_3d4e1980-720e-4d4d-9a6c-036d8ac00510/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c[3694,3707] [2024-11-27 06:25:43,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:25:43,600 INFO L204 MainTranslator]: Completed translation [2024-11-27 06:25:43,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:25:43 WrapperNode [2024-11-27 06:25:43,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 06:25:43,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 06:25:43,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 06:25:43,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 06:25:43,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:25:43" (1/1) ... [2024-11-27 06:25:43,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:25:43" (1/1) ... [2024-11-27 06:25:43,668 INFO L138 Inliner]: procedures = 26, calls = 48, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 290 [2024-11-27 06:25:43,668 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 06:25:43,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 06:25:43,669 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 06:25:43,669 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 06:25:43,677 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:25:43" (1/1) ... [2024-11-27 06:25:43,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:25:43" (1/1) ... [2024-11-27 06:25:43,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:25:43" (1/1) ... [2024-11-27 06:25:43,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:25:43" (1/1) ... [2024-11-27 06:25:43,690 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:25:43" (1/1) ... [2024-11-27 06:25:43,691 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:25:43" (1/1) ... [2024-11-27 06:25:43,696 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:25:43" (1/1) ... [2024-11-27 06:25:43,697 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:25:43" (1/1) ... [2024-11-27 06:25:43,699 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:25:43" (1/1) ... [2024-11-27 06:25:43,702 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 06:25:43,703 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 06:25:43,703 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 06:25:43,703 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 06:25:43,704 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:25:43" (1/1) ... [2024-11-27 06:25:43,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:25:43,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:25:43,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-27 06:25:43,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-27 06:25:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 06:25:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 06:25:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 06:25:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 06:25:43,787 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 06:25:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 06:25:43,787 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 06:25:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-27 06:25:43,787 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-27 06:25:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-27 06:25:43,787 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-27 06:25:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 06:25:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 06:25:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 06:25:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 06:25:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 06:25:43,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 06:25:43,791 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 06:25:43,924 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 06:25:43,927 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 06:25:44,484 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 06:25:44,485 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 06:25:44,995 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 06:25:44,996 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-27 06:25:44,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:25:44 BoogieIcfgContainer [2024-11-27 06:25:44,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 06:25:44,999 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 06:25:45,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 06:25:45,006 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 06:25:45,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 06:25:43" (1/3) ... [2024-11-27 06:25:45,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdbce01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:25:45, skipping insertion in model container [2024-11-27 06:25:45,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:25:43" (2/3) ... [2024-11-27 06:25:45,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdbce01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:25:45, skipping insertion in model container [2024-11-27 06:25:45,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:25:44" (3/3) ... [2024-11-27 06:25:45,010 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2024-11-27 06:25:45,028 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 06:25:45,030 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-parallel-sum-1.wvr.c that has 5 procedures, 46 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2024-11-27 06:25:45,030 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 06:25:45,116 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-27 06:25:45,185 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 06:25:45,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-27 06:25:45,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:25:45,189 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-27 06:25:45,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-27 06:25:45,291 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-27 06:25:45,311 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-27 06:25:45,322 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;@6aca1fa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 06:25:45,322 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-27 06:25:45,840 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:25:45,841 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:25:45,841 INFO L139 ounterexampleChecker]: Examining path program with hash 620084782, occurence #1 [2024-11-27 06:25:45,842 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:25:45,842 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:25:45,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:25:45,847 INFO L85 PathProgramCache]: Analyzing trace with hash 57742913, now seen corresponding path program 1 times [2024-11-27 06:25:45,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:25:45,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388853773] [2024-11-27 06:25:45,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:45,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:46,081 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 06:25:46,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:25:46,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388853773] [2024-11-27 06:25:46,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388853773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:25:46,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:25:46,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 06:25:46,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590588591] [2024-11-27 06:25:46,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:25:46,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 06:25:46,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:25:46,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 06:25:46,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 06:25:46,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:25:46,120 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:25:46,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 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 06:25:46,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:25:46,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:25:46,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 06:25:46,863 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:25:46,863 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:25:46,863 INFO L139 ounterexampleChecker]: Examining path program with hash -624654940, occurence #1 [2024-11-27 06:25:46,864 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:25:46,864 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:25:46,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:25:46,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1179463562, now seen corresponding path program 1 times [2024-11-27 06:25:46,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:25:46,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065924053] [2024-11-27 06:25:46,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:46,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:47,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:48,014 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 06:25:48,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:25:48,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065924053] [2024-11-27 06:25:48,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065924053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:25:48,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:25:48,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 06:25:48,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001807375] [2024-11-27 06:25:48,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:25:48,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:25:48,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:25:48,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:25:48,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 06:25:48,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:25:48,022 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:25:48,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 06:25:48,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:25:48,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:25:48,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:25:48,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:25:48,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 06:25:48,275 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:25:48,275 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:25:48,276 INFO L139 ounterexampleChecker]: Examining path program with hash -624654940, occurence #2 [2024-11-27 06:25:48,276 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:25:48,276 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:25:48,277 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:25:48,277 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-11-27 06:25:48,292 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:25:48,293 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-27 06:25:48,293 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:25:48,293 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-27 06:25:48,293 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:25:48,293 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-27 06:25:48,293 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:25:48,293 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-27 06:25:48,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:25:48,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1885514117, now seen corresponding path program 1 times [2024-11-27 06:25:48,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:25:48,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721291425] [2024-11-27 06:25:48,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:48,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:48,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:48,614 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:25:48,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721291425] [2024-11-27 06:25:48,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721291425] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:48,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1144201094] [2024-11-27 06:25:48,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:48,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:48,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 06:25:48,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:25:48,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:48,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1144201094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:48,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:25:48,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-27 06:25:48,858 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:25:48,858 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-11-27 06:25:48,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:25:48,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1030334306, now seen corresponding path program 1 times [2024-11-27 06:25:48,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:25:48,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219023618] [2024-11-27 06:25:48,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:48,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:49,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:49,224 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:25:49,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219023618] [2024-11-27 06:25:49,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219023618] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:49,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1876478007] [2024-11-27 06:25:49,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:49,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:49,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 06:25:49,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:25:49,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:49,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1876478007] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:49,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:25:49,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-27 06:25:49,431 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:25:49,431 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2024-11-27 06:25:49,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:25:49,460 INFO L85 PathProgramCache]: Analyzing trace with hash 950169953, now seen corresponding path program 1 times [2024-11-27 06:25:49,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:25:49,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615961218] [2024-11-27 06:25:49,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:49,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:49,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:49,793 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:25:49,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615961218] [2024-11-27 06:25:49,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615961218] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:49,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [501405703] [2024-11-27 06:25:49,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:49,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:49,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 06:25:49,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:25:49,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:49,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [501405703] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:49,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:25:49,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-27 06:25:49,994 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:25:49,995 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2024-11-27 06:25:49,995 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:25:49,995 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 76 [2024-11-27 06:25:50,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:25:50,073 INFO L85 PathProgramCache]: Analyzing trace with hash -403328781, now seen corresponding path program 1 times [2024-11-27 06:25:50,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:25:50,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629570775] [2024-11-27 06:25:50,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:50,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:50,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:50,454 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:25:50,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629570775] [2024-11-27 06:25:50,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629570775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:50,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [2131215484] [2024-11-27 06:25:50,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:50,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:50,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 06:25:50,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:25:50,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:50,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [2131215484] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:50,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:25:50,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-27 06:25:50,675 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:25:50,675 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 94 is hopeless, skipping. [2024-11-27 06:25:50,678 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 98 [2024-11-27 06:25:50,678 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:25:50,678 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 106 [2024-11-27 06:25:50,678 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:25:50,678 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2024-11-27 06:25:50,678 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:25:50,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 112 [2024-11-27 06:25:50,679 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:25:50,679 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:25:50,679 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:25:50,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:25:50,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1105792968, now seen corresponding path program 1 times [2024-11-27 06:25:50,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:25:50,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863530232] [2024-11-27 06:25:50,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:50,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:51,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:51,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:25:51,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863530232] [2024-11-27 06:25:51,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863530232] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:51,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901386340] [2024-11-27 06:25:51,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:51,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:25:51,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:25:51,207 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:25:51,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 06:25:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:51,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 06:25:51,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:25:52,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:52,191 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:25:52,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:52,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901386340] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:25:52,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:25:52,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 16, 16] total 33 [2024-11-27 06:25:52,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717785121] [2024-11-27 06:25:52,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:25:52,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-27 06:25:52,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:25:52,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-27 06:25:52,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=419, Invalid=703, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 06:25:52,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:25:52,743 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:25:52,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.529411764705882) internal successors, (256), 33 states have internal predecessors, (256), 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 06:25:52,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:25:52,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:25:52,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:25:53,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:25:53,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:25:53,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:25:53,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 06:25:53,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,SelfDestructingSolverStorable2,SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5,SelfDestructingSolverStorable10,SelfDestructingSolverStorable9 [2024-11-27 06:25:53,369 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:25:53,369 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:25:53,369 INFO L139 ounterexampleChecker]: Examining path program with hash -624654940, occurence #3 [2024-11-27 06:25:53,369 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:25:53,369 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:25:53,369 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:25:53,370 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-27 06:25:53,370 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:25:53,370 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-27 06:25:53,370 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:25:53,370 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-27 06:25:53,370 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:25:53,370 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-27 06:25:53,370 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:25:53,370 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2024-11-27 06:25:53,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:25:53,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1738018433, now seen corresponding path program 1 times [2024-11-27 06:25:53,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:25:53,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732915167] [2024-11-27 06:25:53,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:53,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:25:53,521 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:25:53,521 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:25:53,521 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 46 [2024-11-27 06:25:53,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:25:53,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1438251416, now seen corresponding path program 1 times [2024-11-27 06:25:53,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:25:53,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146080176] [2024-11-27 06:25:53,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:53,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:54,022 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:54,023 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:25:54,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146080176] [2024-11-27 06:25:54,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146080176] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:54,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [436537855] [2024-11-27 06:25:54,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:54,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:54,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 06:25:54,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:25:54,502 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:54,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [436537855] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:54,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:25:54,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2024-11-27 06:25:54,503 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:25:54,503 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 62 [2024-11-27 06:25:54,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:25:54,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1316124251, now seen corresponding path program 1 times [2024-11-27 06:25:54,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:25:54,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299349285] [2024-11-27 06:25:54,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:54,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:55,405 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:55,405 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:25:55,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299349285] [2024-11-27 06:25:55,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299349285] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:55,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1405147240] [2024-11-27 06:25:55,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:55,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:55,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 06:25:55,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:25:56,437 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:56,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1405147240] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:56,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:25:56,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 32 [2024-11-27 06:25:56,438 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:25:56,440 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 74 [2024-11-27 06:25:56,441 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:25:56,441 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2024-11-27 06:25:56,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:25:56,521 INFO L85 PathProgramCache]: Analyzing trace with hash 860775889, now seen corresponding path program 1 times [2024-11-27 06:25:56,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:25:56,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400731538] [2024-11-27 06:25:56,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:56,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:57,751 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:57,751 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:25:57,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400731538] [2024-11-27 06:25:57,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400731538] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:57,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [690568869] [2024-11-27 06:25:57,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:57,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:57,815 INFO L256 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 06:25:57,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:25:58,911 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:25:58,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [690568869] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:58,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:25:58,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 38 [2024-11-27 06:25:58,912 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:25:58,912 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 97 is hopeless, skipping. [2024-11-27 06:25:58,912 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 101 [2024-11-27 06:25:58,912 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:25:58,912 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 109 [2024-11-27 06:25:58,913 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:25:58,913 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 113 [2024-11-27 06:25:58,913 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:25:58,913 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 115 [2024-11-27 06:25:58,914 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:25:58,914 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:25:58,914 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:25:58,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:25:58,916 INFO L85 PathProgramCache]: Analyzing trace with hash -888214774, now seen corresponding path program 2 times [2024-11-27 06:25:58,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:25:58,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835510708] [2024-11-27 06:25:58,916 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:25:58,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:59,004 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 06:25:59,005 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:25:59,830 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 06:25:59,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:25:59,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835510708] [2024-11-27 06:25:59,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835510708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:25:59,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:25:59,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 06:25:59,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381567461] [2024-11-27 06:25:59,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:25:59,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 06:25:59,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:25:59,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 06:25:59,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-27 06:25:59,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:25:59,835 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:25:59,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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 06:25:59,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:25:59,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:25:59,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:25:59,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:00,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:00,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:26:00,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:26:00,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:26:00,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,SelfDestructingSolverStorable11,SelfDestructingSolverStorable12,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14,SelfDestructingSolverStorable15,SelfDestructingSolverStorable16,SelfDestructingSolverStorable17 [2024-11-27 06:26:00,436 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:26:00,436 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:26:00,437 INFO L139 ounterexampleChecker]: Examining path program with hash -797876690, occurence #1 [2024-11-27 06:26:00,437 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:26:00,437 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:26:00,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:26:00,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1030656024, now seen corresponding path program 3 times [2024-11-27 06:26:00,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:26:00,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761359568] [2024-11-27 06:26:00,438 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:26:00,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:26:00,861 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 06:26:00,861 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:26:02,108 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 54 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-27 06:26:02,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:26:02,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761359568] [2024-11-27 06:26:02,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761359568] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:26:02,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641489370] [2024-11-27 06:26:02,109 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:26:02,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:26:02,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:26:02,111 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:26:02,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 06:26:02,485 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 06:26:02,486 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:26:02,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 06:26:02,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:26:03,869 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 48 proven. 16 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-27 06:26:03,869 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:26:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 51 proven. 13 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-27 06:26:04,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641489370] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:26:04,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:26:04,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 54 [2024-11-27 06:26:04,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697657429] [2024-11-27 06:26:04,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:26:04,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-27 06:26:04,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:26:04,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-27 06:26:04,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=858, Invalid=2112, Unknown=0, NotChecked=0, Total=2970 [2024-11-27 06:26:04,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:04,617 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:26:04,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 6.672727272727273) internal successors, (367), 54 states have internal predecessors, (367), 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 06:26:04,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:04,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:26:04,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:26:04,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:26:04,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:05,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:05,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:26:05,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:26:05,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:26:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 06:26:05,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 06:26:05,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:26:05,397 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:26:05,397 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:26:05,397 INFO L139 ounterexampleChecker]: Examining path program with hash -797876690, occurence #2 [2024-11-27 06:26:05,397 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:26:05,397 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:26:05,398 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:26:05,398 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-27 06:26:05,398 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:26:05,398 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-27 06:26:05,398 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:26:05,398 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-27 06:26:05,398 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:26:05,398 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-27 06:26:05,398 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:26:05,398 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2024-11-27 06:26:05,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:26:05,457 INFO L85 PathProgramCache]: Analyzing trace with hash 231944852, now seen corresponding path program 1 times [2024-11-27 06:26:05,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:26:05,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678253244] [2024-11-27 06:26:05,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:26:05,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:26:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:26:05,598 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:26:05,598 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:26:05,598 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 93 [2024-11-27 06:26:05,599 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:26:05,599 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 112 [2024-11-27 06:26:05,599 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:26:05,599 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 119 [2024-11-27 06:26:05,599 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:26:05,599 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 126 [2024-11-27 06:26:05,599 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:26:05,599 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 130 [2024-11-27 06:26:05,599 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:26:05,600 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 134 [2024-11-27 06:26:05,600 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:26:05,600 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2024-11-27 06:26:05,600 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:26:05,600 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 142 [2024-11-27 06:26:05,600 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:26:05,600 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 144 [2024-11-27 06:26:05,600 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:26:05,600 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 146 [2024-11-27 06:26:05,600 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:26:05,600 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:26:05,600 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:26:05,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:26:05,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1121976024, now seen corresponding path program 4 times [2024-11-27 06:26:05,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:26:05,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290027863] [2024-11-27 06:26:05,602 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:26:05,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:26:05,654 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:26:05,654 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:26:06,196 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 36 proven. 68 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-27 06:26:06,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:26:06,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290027863] [2024-11-27 06:26:06,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290027863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:26:06,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963950655] [2024-11-27 06:26:06,198 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:26:06,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:26:06,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:26:06,201 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:26:06,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 06:26:06,445 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:26:06,446 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:26:06,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-27 06:26:06,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:26:07,825 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 36 proven. 68 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-27 06:26:07,825 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:26:08,388 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 36 proven. 68 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-27 06:26:08,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963950655] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:26:08,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:26:08,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 30, 9] total 38 [2024-11-27 06:26:08,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813371942] [2024-11-27 06:26:08,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:26:08,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-27 06:26:08,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:26:08,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-27 06:26:08,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1176, Unknown=0, NotChecked=0, Total=1406 [2024-11-27 06:26:08,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:08,393 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:26:08,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 6.473684210526316) internal successors, (246), 38 states have internal predecessors, (246), 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 06:26:08,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:08,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:26:08,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:26:08,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:26:08,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-27 06:26:08,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:11,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:11,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:26:11,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:26:11,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:26:11,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 06:26:11,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-27 06:26:11,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 06:26:12,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20,SelfDestructingSolverStorable21 [2024-11-27 06:26:12,118 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:26:12,118 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:26:12,118 INFO L139 ounterexampleChecker]: Examining path program with hash 1312732829, occurence #1 [2024-11-27 06:26:12,119 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:26:12,119 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:26:12,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:26:12,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1477182383, now seen corresponding path program 5 times [2024-11-27 06:26:12,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:26:12,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86071146] [2024-11-27 06:26:12,120 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:26:12,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:26:12,525 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-27 06:26:12,525 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:26:15,128 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 505 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:26:15,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:26:15,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86071146] [2024-11-27 06:26:15,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86071146] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:26:15,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025550487] [2024-11-27 06:26:15,129 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:26:15,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:26:15,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:26:15,132 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:26:15,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 06:26:15,875 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-27 06:26:15,876 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:26:15,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-27 06:26:15,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:26:18,476 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 505 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-27 06:26:18,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:26:19,109 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 119 proven. 1 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2024-11-27 06:26:19,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025550487] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:26:19,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:26:19,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 43, 8] total 79 [2024-11-27 06:26:19,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878006228] [2024-11-27 06:26:19,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:26:19,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2024-11-27 06:26:19,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:26:19,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2024-11-27 06:26:19,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=594, Invalid=5568, Unknown=0, NotChecked=0, Total=6162 [2024-11-27 06:26:19,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:19,116 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:26:19,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 5.936708860759493) internal successors, (469), 79 states have internal predecessors, (469), 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 06:26:19,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:19,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:26:19,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:26:19,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:26:19,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-27 06:26:19,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-11-27 06:26:19,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:25,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:25,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:26:25,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:26:25,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:26:25,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 06:26:25,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-27 06:26:25,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:26:25,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 06:26:25,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-27 06:26:25,281 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:26:25,282 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:26:25,282 INFO L139 ounterexampleChecker]: Examining path program with hash 138038768, occurence #1 [2024-11-27 06:26:25,282 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:26:25,282 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:26:25,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:26:25,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1746116919, now seen corresponding path program 6 times [2024-11-27 06:26:25,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:26:25,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048573589] [2024-11-27 06:26:25,283 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 06:26:25,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:26:26,346 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-11-27 06:26:26,347 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:26:29,036 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 32 proven. 135 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2024-11-27 06:26:29,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:26:29,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048573589] [2024-11-27 06:26:29,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048573589] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:26:29,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108611523] [2024-11-27 06:26:29,037 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 06:26:29,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:26:29,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:26:29,039 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:26:29,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 06:26:29,943 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-11-27 06:26:29,943 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:26:29,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-27 06:26:29,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:26:32,020 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 32 proven. 642 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-27 06:26:32,021 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:26:32,641 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 21 proven. 146 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2024-11-27 06:26:32,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108611523] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:26:32,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:26:32,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 53, 9] total 64 [2024-11-27 06:26:32,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734590945] [2024-11-27 06:26:32,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:26:32,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-11-27 06:26:32,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:26:32,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-11-27 06:26:32,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=3402, Unknown=0, NotChecked=0, Total=4032 [2024-11-27 06:26:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:32,646 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:26:32,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 6.046875) internal successors, (387), 64 states have internal predecessors, (387), 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 06:26:32,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:32,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:26:32,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:26:32,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:26:32,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-27 06:26:32,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-11-27 06:26:32,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:26:32,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:38,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:26:38,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:26:38,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:26:38,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:26:38,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 06:26:38,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-27 06:26:38,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:26:38,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:26:38,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 06:26:38,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 06:26:38,229 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:26:38,229 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:26:38,230 INFO L139 ounterexampleChecker]: Examining path program with hash -1531961405, occurence #1 [2024-11-27 06:26:38,230 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:26:38,230 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:26:38,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:26:38,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1899021756, now seen corresponding path program 7 times [2024-11-27 06:26:38,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:26:38,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138691592] [2024-11-27 06:26:38,231 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 06:26:38,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:26:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:26:49,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1706 backedges. 1617 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:26:49,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:26:49,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138691592] [2024-11-27 06:26:49,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138691592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:26:49,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77926720] [2024-11-27 06:26:49,424 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 06:26:49,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:26:49,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:26:49,427 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:26:49,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 06:26:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:26:49,902 INFO L256 TraceCheckSpWp]: Trace formula consists of 1527 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-27 06:26:49,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:26:55,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1706 backedges. 1497 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:26:55,513 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:27:01,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1706 backedges. 1640 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:27:01,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77926720] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:27:01,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:27:01,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 55, 55] total 203 [2024-11-27 06:27:01,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275331149] [2024-11-27 06:27:01,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:27:01,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 204 states [2024-11-27 06:27:01,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:27:01,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 204 interpolants. [2024-11-27 06:27:01,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8114, Invalid=33298, Unknown=0, NotChecked=0, Total=41412 [2024-11-27 06:27:01,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:27:01,655 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:27:01,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 204 states, 204 states have (on average 5.352941176470588) internal successors, (1092), 203 states have internal predecessors, (1092), 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 06:27:01,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:27:01,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:27:01,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:27:01,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:27:01,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-27 06:27:01,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-11-27 06:27:01,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:27:01,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:27:01,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:27:02,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:27:02,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:27:02,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:27:02,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:27:02,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 06:27:02,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-27 06:27:02,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:27:02,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:27:02,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-27 06:27:02,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 06:27:02,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-27 06:27:02,899 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:27:02,899 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:27:02,899 INFO L139 ounterexampleChecker]: Examining path program with hash -1531961405, occurence #2 [2024-11-27 06:27:02,899 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:27:02,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:27:02,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:02,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-27 06:27:02,900 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:27:02,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-11-27 06:27:02,901 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:27:02,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2024-11-27 06:27:02,902 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:27:02,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-27 06:27:02,902 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:27:02,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 271 [2024-11-27 06:27:02,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:02,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 321 [2024-11-27 06:27:02,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:27:02,925 INFO L85 PathProgramCache]: Analyzing trace with hash -8324859, now seen corresponding path program 1 times [2024-11-27 06:27:02,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:27:02,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572430850] [2024-11-27 06:27:02,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:27:02,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:27:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:27:13,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1800 backedges. 1500 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:27:13,286 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:27:13,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572430850] [2024-11-27 06:27:13,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572430850] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:27:13,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1042338935] [2024-11-27 06:27:13,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:27:13,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:27:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:27:13,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 99 conjuncts are in the unsatisfiable core [2024-11-27 06:27:13,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:27:25,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1800 backedges. 1357 proven. 443 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:27:25,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1042338935] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:27:25,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:27:25,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95] total 190 [2024-11-27 06:27:25,500 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:27:25,501 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 330 [2024-11-27 06:27:25,501 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:25,501 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 337 [2024-11-27 06:27:25,501 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:25,501 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 344 [2024-11-27 06:27:25,501 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:25,501 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 348 [2024-11-27 06:27:25,501 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:25,501 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 352 [2024-11-27 06:27:25,501 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:25,502 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 356 [2024-11-27 06:27:25,502 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:25,502 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 360 [2024-11-27 06:27:25,502 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:25,502 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 364 [2024-11-27 06:27:25,502 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:25,502 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 368 [2024-11-27 06:27:25,502 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:25,502 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 372 [2024-11-27 06:27:25,502 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:25,502 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 374 [2024-11-27 06:27:25,502 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:25,502 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 376 [2024-11-27 06:27:25,503 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:27:25,503 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:27:25,503 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:27:25,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:27:25,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1929262934, now seen corresponding path program 8 times [2024-11-27 06:27:25,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:27:25,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116410272] [2024-11-27 06:27:25,503 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:27:25,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:27:25,757 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:27:25,757 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:27:34,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 1483 proven. 329 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-27 06:27:34,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:27:34,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116410272] [2024-11-27 06:27:34,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116410272] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:27:34,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353399919] [2024-11-27 06:27:34,537 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:27:34,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:27:34,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:27:34,539 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:27:34,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 06:27:35,016 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:27:35,016 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:27:35,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 1644 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-27 06:27:35,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:27:40,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 1497 proven. 443 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:27:40,441 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:27:46,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 1640 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:27:46,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353399919] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:27:46,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:27:46,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 68, 68] total 227 [2024-11-27 06:27:46,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569479501] [2024-11-27 06:27:46,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:27:46,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 228 states [2024-11-27 06:27:46,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:27:46,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 228 interpolants. [2024-11-27 06:27:46,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8974, Invalid=42782, Unknown=0, NotChecked=0, Total=51756 [2024-11-27 06:27:46,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:27:46,544 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:27:46,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 228 states, 228 states have (on average 4.767543859649122) internal successors, (1087), 227 states have internal predecessors, (1087), 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 06:27:46,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:27:46,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:27:46,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:27:46,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:27:46,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-27 06:27:46,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-11-27 06:27:46,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:27:46,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:27:46,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-11-27 06:27:46,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:27:48,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:27:48,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:27:48,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:27:48,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:27:48,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 06:27:48,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-27 06:27:48,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:27:48,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:27:48,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-27 06:27:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-11-27 06:27:48,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 06:27:48,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25,SelfDestructingSolverStorable26,SelfDestructingSolverStorable27 [2024-11-27 06:27:48,529 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:27:48,529 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:27:48,529 INFO L139 ounterexampleChecker]: Examining path program with hash -1531961405, occurence #3 [2024-11-27 06:27:48,529 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:27:48,530 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:27:48,530 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:48,530 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2024-11-27 06:27:48,530 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:27:48,530 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2024-11-27 06:27:48,530 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:27:48,530 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2024-11-27 06:27:48,530 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:27:48,530 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2024-11-27 06:27:48,530 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:27:48,530 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 290 [2024-11-27 06:27:48,530 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:48,531 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 340 [2024-11-27 06:27:48,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:27:48,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1280091510, now seen corresponding path program 1 times [2024-11-27 06:27:48,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:27:48,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195065535] [2024-11-27 06:27:48,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:27:48,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:27:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:27:50,123 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:27:50,123 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:27:50,123 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 349 [2024-11-27 06:27:50,123 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:50,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 356 [2024-11-27 06:27:50,124 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:50,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 363 [2024-11-27 06:27:50,124 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:50,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 367 [2024-11-27 06:27:50,124 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:50,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 371 [2024-11-27 06:27:50,124 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:50,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 375 [2024-11-27 06:27:50,124 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:50,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 379 [2024-11-27 06:27:50,124 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:50,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 383 [2024-11-27 06:27:50,124 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:50,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 387 [2024-11-27 06:27:50,124 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:50,125 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 391 [2024-11-27 06:27:50,125 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:50,126 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 393 [2024-11-27 06:27:50,126 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:27:50,126 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 395 [2024-11-27 06:27:50,126 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:27:50,126 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:27:50,126 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:27:50,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:27:50,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1874386500, now seen corresponding path program 9 times [2024-11-27 06:27:50,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:27:50,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880333673] [2024-11-27 06:27:50,128 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:27:50,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:27:53,872 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-11-27 06:27:53,873 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:27:58,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2586 backedges. 128 proven. 273 refuted. 0 times theorem prover too weak. 2185 trivial. 0 not checked. [2024-11-27 06:27:58,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:27:58,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880333673] [2024-11-27 06:27:58,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880333673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:27:58,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218886326] [2024-11-27 06:27:58,639 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:27:58,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:27:58,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:27:58,641 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:27:58,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 06:28:00,783 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-11-27 06:28:00,783 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:28:00,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-11-27 06:28:00,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:28:03,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2586 backedges. 128 proven. 1512 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 06:28:03,554 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:28:04,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2586 backedges. 105 proven. 296 refuted. 0 times theorem prover too weak. 2185 trivial. 0 not checked. [2024-11-27 06:28:04,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218886326] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:28:04,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:28:04,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 84, 13] total 98 [2024-11-27 06:28:04,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752424055] [2024-11-27 06:28:04,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:28:04,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-11-27 06:28:04,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:28:04,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-11-27 06:28:04,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1108, Invalid=8398, Unknown=0, NotChecked=0, Total=9506 [2024-11-27 06:28:04,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:28:04,501 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:28:04,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 5.5) internal successors, (539), 98 states have internal predecessors, (539), 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 06:28:04,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:28:04,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:28:04,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:28:04,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:28:04,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-27 06:28:04,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-11-27 06:28:04,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:28:04,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:28:04,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-11-27 06:28:04,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2024-11-27 06:28:04,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:28:16,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:28:16,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:28:16,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:28:16,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:28:16,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 06:28:16,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-27 06:28:16,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:28:16,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:28:16,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-27 06:28:16,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-11-27 06:28:16,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2024-11-27 06:28:16,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 06:28:16,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 06:28:16,481 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:28:16,481 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:28:16,482 INFO L139 ounterexampleChecker]: Examining path program with hash 1256791457, occurence #1 [2024-11-27 06:28:16,482 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:28:16,482 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:28:16,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:28:16,483 INFO L85 PathProgramCache]: Analyzing trace with hash 326511109, now seen corresponding path program 10 times [2024-11-27 06:28:16,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:28:16,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626813474] [2024-11-27 06:28:16,483 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:28:16,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:28:16,621 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:28:16,621 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:28:19,597 INFO L134 CoverageAnalysis]: Checked inductivity of 4868 backedges. 242 proven. 497 refuted. 0 times theorem prover too weak. 4129 trivial. 0 not checked. [2024-11-27 06:28:19,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:28:19,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626813474] [2024-11-27 06:28:19,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626813474] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:28:19,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912441765] [2024-11-27 06:28:19,597 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:28:19,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:28:19,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:28:19,599 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:28:19,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 06:28:20,036 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:28:20,036 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:28:20,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 122 conjuncts are in the unsatisfiable core [2024-11-27 06:28:20,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:28:25,145 INFO L134 CoverageAnalysis]: Checked inductivity of 4868 backedges. 242 proven. 3680 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 06:28:25,145 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:28:26,722 INFO L134 CoverageAnalysis]: Checked inductivity of 4868 backedges. 210 proven. 529 refuted. 0 times theorem prover too weak. 4129 trivial. 0 not checked. [2024-11-27 06:28:26,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912441765] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:28:26,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:28:26,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 123, 16] total 143 [2024-11-27 06:28:26,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951032913] [2024-11-27 06:28:26,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:28:26,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 143 states [2024-11-27 06:28:26,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:28:26,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2024-11-27 06:28:26,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2352, Invalid=17954, Unknown=0, NotChecked=0, Total=20306 [2024-11-27 06:28:26,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:28:26,730 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:28:26,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 143 states, 143 states have (on average 5.3076923076923075) internal successors, (759), 143 states have internal predecessors, (759), 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 06:28:26,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:28:26,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:28:26,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:28:26,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:28:26,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-27 06:28:26,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-11-27 06:28:26,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:28:26,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:28:26,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-11-27 06:28:26,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2024-11-27 06:28:26,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2024-11-27 06:28:26,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:28:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:28:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:28:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:28:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:28:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 06:28:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-27 06:28:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:28:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-27 06:28:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-27 06:28:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-11-27 06:28:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2024-11-27 06:28:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2024-11-27 06:28:50,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-27 06:28:50,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:28:50,814 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:28:50,814 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:28:50,815 INFO L139 ounterexampleChecker]: Examining path program with hash -1531961405, occurence #4 [2024-11-27 06:28:50,815 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:28:50,815 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:28:50,815 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:28:50,815 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2024-11-27 06:28:50,815 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:28:50,815 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2024-11-27 06:28:50,815 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:28:50,815 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2024-11-27 06:28:50,815 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:28:50,815 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2024-11-27 06:28:50,815 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:28:50,816 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 562 [2024-11-27 06:28:50,816 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:28:50,816 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 660 [2024-11-27 06:28:50,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:28:50,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1094637241, now seen corresponding path program 1 times [2024-11-27 06:28:50,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:28:50,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433765732] [2024-11-27 06:28:50,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:28:50,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:28:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:29:24,836 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 7711 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:29:24,836 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:29:24,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433765732] [2024-11-27 06:29:24,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433765732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:29:24,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1354159749] [2024-11-27 06:29:24,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:29:24,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:29:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:29:25,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 2790 conjuncts, 198 conjuncts are in the unsatisfiable core [2024-11-27 06:29:25,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:30:04,701 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 7381 proven. 1276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:30:04,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1354159749] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:30:04,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:30:04,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [194, 194] total 388 [2024-11-27 06:30:04,702 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:30:04,702 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 669 [2024-11-27 06:30:04,702 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,702 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 676 [2024-11-27 06:30:04,702 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,703 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 683 [2024-11-27 06:30:04,703 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,703 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 687 [2024-11-27 06:30:04,703 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,703 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 691 [2024-11-27 06:30:04,703 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,703 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 695 [2024-11-27 06:30:04,703 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,704 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 699 [2024-11-27 06:30:04,704 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,704 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 703 [2024-11-27 06:30:04,704 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,704 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 707 [2024-11-27 06:30:04,704 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,704 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 711 [2024-11-27 06:30:04,704 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,705 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 715 [2024-11-27 06:30:04,705 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,705 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 719 [2024-11-27 06:30:04,705 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,705 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 723 [2024-11-27 06:30:04,705 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,705 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 727 [2024-11-27 06:30:04,705 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,706 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 731 [2024-11-27 06:30:04,706 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,706 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 735 [2024-11-27 06:30:04,706 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,706 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 739 [2024-11-27 06:30:04,706 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,706 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 743 [2024-11-27 06:30:04,706 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,707 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 747 [2024-11-27 06:30:04,707 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,707 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 749 [2024-11-27 06:30:04,707 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:30:04,707 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 751 [2024-11-27 06:30:04,707 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:30:04,707 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:30:04,707 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:30:04,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:30:04,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1702883953, now seen corresponding path program 11 times [2024-11-27 06:30:04,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:30:04,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462161679] [2024-11-27 06:30:04,708 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:30:04,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:30:08,914 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 31 check-sat command(s) [2024-11-27 06:30:08,914 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:30:26,743 INFO L134 CoverageAnalysis]: Checked inductivity of 9259 backedges. 7735 proven. 946 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-27 06:30:26,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:30:26,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462161679] [2024-11-27 06:30:26,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462161679] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:30:26,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158837728] [2024-11-27 06:30:26,743 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:30:26,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:30:26,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:30:26,745 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:30:26,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4e1980-720e-4d4d-9a6c-036d8ac00510/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 06:39:50,230 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 31 check-sat command(s) [2024-11-27 06:39:50,230 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:39:50,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 3150 conjuncts, 172 conjuncts are in the unsatisfiable core [2024-11-27 06:39:50,723 INFO L279 TraceCheckSpWp]: Computing forward predicates...