./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 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/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_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca --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-6497de0 [2024-11-23 11:33:53,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 11:33:53,126 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-23 11:33:53,131 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 11:33:53,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 11:33:53,155 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 11:33:53,156 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 11:33:53,156 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 11:33:53,156 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 11:33:53,157 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 11:33:53,157 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 11:33:53,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 11:33:53,157 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 11:33:53,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 11:33:53,157 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 11:33:53,157 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 11:33:53,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 11:33:53,158 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 11:33:53,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 11:33:53,158 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 11:33:53,158 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 11:33:53,158 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 11:33:53,158 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 11:33:53,158 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 11:33:53,158 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 11:33:53,158 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 11:33:53,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 11:33:53,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 11:33:53,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 11:33:53,159 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 11:33:53,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:33:53,159 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 11:33:53,159 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 11:33:53,160 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 11:33:53,160 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-23 11:33:53,160 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 11:33:53,160 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 11:33:53,160 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-23 11:33:53,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 11:33:53,160 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 11:33:53,160 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-23 11:33:53,160 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-23 11:33:53,160 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-23 11:33:53,160 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_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca 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 [2024-11-23 11:33:53,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 11:33:53,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 11:33:53,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 11:33:53,516 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 11:33:53,516 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 11:33:53,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2024-11-23 11:33:56,527 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/data/76355f7be/f4a7f3da6d884923ad667f5b9f530c09/FLAG27bdf4b1e [2024-11-23 11:33:56,890 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 11:33:56,891 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2024-11-23 11:33:56,921 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/data/76355f7be/f4a7f3da6d884923ad667f5b9f530c09/FLAG27bdf4b1e [2024-11-23 11:33:56,962 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/data/76355f7be/f4a7f3da6d884923ad667f5b9f530c09 [2024-11-23 11:33:56,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 11:33:56,967 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 11:33:56,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 11:33:56,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 11:33:56,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 11:33:56,976 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:33:56" (1/1) ... [2024-11-23 11:33:56,977 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7564b21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:56, skipping insertion in model container [2024-11-23 11:33:56,977 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:33:56" (1/1) ... [2024-11-23 11:33:57,005 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 11:33:57,266 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_e314fae0-86e5-4c7a-8b65-1447fcfec9be/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c[3694,3707] [2024-11-23 11:33:57,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:33:57,299 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 11:33:57,338 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_e314fae0-86e5-4c7a-8b65-1447fcfec9be/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c[3694,3707] [2024-11-23 11:33:57,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:33:57,362 INFO L204 MainTranslator]: Completed translation [2024-11-23 11:33:57,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:57 WrapperNode [2024-11-23 11:33:57,363 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 11:33:57,364 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 11:33:57,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 11:33:57,365 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 11:33:57,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:57" (1/1) ... [2024-11-23 11:33:57,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:57" (1/1) ... [2024-11-23 11:33:57,433 INFO L138 Inliner]: procedures = 26, calls = 48, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 290 [2024-11-23 11:33:57,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 11:33:57,434 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 11:33:57,434 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 11:33:57,434 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 11:33:57,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:57" (1/1) ... [2024-11-23 11:33:57,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:57" (1/1) ... [2024-11-23 11:33:57,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:57" (1/1) ... [2024-11-23 11:33:57,454 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:57" (1/1) ... [2024-11-23 11:33:57,473 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:57" (1/1) ... [2024-11-23 11:33:57,475 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:57" (1/1) ... [2024-11-23 11:33:57,486 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:57" (1/1) ... [2024-11-23 11:33:57,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:57" (1/1) ... [2024-11-23 11:33:57,493 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:57" (1/1) ... [2024-11-23 11:33:57,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 11:33:57,503 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 11:33:57,503 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 11:33:57,503 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 11:33:57,504 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:57" (1/1) ... [2024-11-23 11:33:57,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:33:57,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:57,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-23 11:33:57,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-23 11:33:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 11:33:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 11:33:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 11:33:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-23 11:33:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-23 11:33:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-23 11:33:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-23 11:33:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-23 11:33:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-23 11:33:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-23 11:33:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-23 11:33:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 11:33:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-23 11:33:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-23 11:33:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 11:33:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 11:33:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 11:33:57,589 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 11:33:57,760 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 11:33:57,763 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 11:33:58,372 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 11:33:58,373 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 11:33:58,817 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 11:33:58,817 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-23 11:33:58,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:33:58 BoogieIcfgContainer [2024-11-23 11:33:58,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 11:33:58,821 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 11:33:58,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 11:33:58,828 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 11:33:58,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:33:56" (1/3) ... [2024-11-23 11:33:58,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461f9397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:33:58, skipping insertion in model container [2024-11-23 11:33:58,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:57" (2/3) ... [2024-11-23 11:33:58,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461f9397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:33:58, skipping insertion in model container [2024-11-23 11:33:58,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:33:58" (3/3) ... [2024-11-23 11:33:58,831 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2024-11-23 11:33:58,851 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 11:33:58,853 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. [2024-11-23 11:33:58,853 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 11:33:58,982 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-23 11:33:59,059 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:33:59,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-23 11:33:59,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:59,064 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-23 11:33:59,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-23 11:33:59,187 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-23 11:33:59,207 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-23 11:33:59,219 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;@45d040c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:33:59,220 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-23 11:33:59,787 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)] === [2024-11-23 11:33:59,787 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:59,788 INFO L139 ounterexampleChecker]: Examining path program with hash 1836944901, occurence #1 [2024-11-23 11:33:59,788 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:33:59,788 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:59,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:59,794 INFO L85 PathProgramCache]: Analyzing trace with hash 57742913, now seen corresponding path program 1 times [2024-11-23 11:33:59,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:59,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111660445] [2024-11-23 11:33:59,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:33:59,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:00,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:00,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:34:00,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111660445] [2024-11-23 11:34:00,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111660445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:34:00,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:34:00,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 11:34:00,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364947380] [2024-11-23 11:34:00,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:34:00,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 11:34:00,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:34:00,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 11:34:00,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 11:34:00,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:00,099 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:34:00,101 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) [2024-11-23 11:34:00,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:00,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:00,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 11:34:00,916 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)] === [2024-11-23 11:34:00,917 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:34:00,917 INFO L139 ounterexampleChecker]: Examining path program with hash 914170402, occurence #1 [2024-11-23 11:34:00,918 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:34:00,918 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:34:00,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:00,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1179463562, now seen corresponding path program 1 times [2024-11-23 11:34:00,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:34:00,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743605830] [2024-11-23 11:34:00,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:00,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:02,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:02,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:34:02,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743605830] [2024-11-23 11:34:02,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743605830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:34:02,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:34:02,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 11:34:02,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612273033] [2024-11-23 11:34:02,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:34:02,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 11:34:02,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:34:02,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 11:34:02,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 11:34:02,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:02,199 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:34:02,199 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) [2024-11-23 11:34:02,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:02,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:02,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:02,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:02,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 11:34:02,442 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)] === [2024-11-23 11:34:02,442 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:34:02,443 INFO L139 ounterexampleChecker]: Examining path program with hash 914170402, occurence #2 [2024-11-23 11:34:02,443 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:34:02,443 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:34:02,444 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:02,444 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-11-23 11:34:02,462 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:02,462 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-23 11:34:02,463 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:02,463 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-23 11:34:02,463 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:02,463 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-23 11:34:02,463 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:02,463 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-23 11:34:02,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:02,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1885514117, now seen corresponding path program 1 times [2024-11-23 11:34:02,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:34:02,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010336799] [2024-11-23 11:34:02,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:02,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:02,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:02,923 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:34:02,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010336799] [2024-11-23 11:34:02,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010336799] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:02,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [584129318] [2024-11-23 11:34:02,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:02,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:02,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 11:34:02,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:34:03,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:03,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [584129318] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:03,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:34:03,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-23 11:34:03,158 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:34:03,158 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-11-23 11:34:03,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:03,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1030334306, now seen corresponding path program 1 times [2024-11-23 11:34:03,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:34:03,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023570787] [2024-11-23 11:34:03,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:03,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:03,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:03,496 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:34:03,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023570787] [2024-11-23 11:34:03,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023570787] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:03,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1916857192] [2024-11-23 11:34:03,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:03,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:03,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 11:34:03,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:34:03,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:03,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1916857192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:03,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:34:03,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-23 11:34:03,728 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:34:03,728 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2024-11-23 11:34:03,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:03,758 INFO L85 PathProgramCache]: Analyzing trace with hash 950169953, now seen corresponding path program 1 times [2024-11-23 11:34:03,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:34:03,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792578572] [2024-11-23 11:34:03,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:03,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:04,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:04,100 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:34:04,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792578572] [2024-11-23 11:34:04,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792578572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:04,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [435918619] [2024-11-23 11:34:04,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:04,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:04,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 11:34:04,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:34:04,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:04,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [435918619] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:04,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:34:04,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-23 11:34:04,328 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:34:04,328 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2024-11-23 11:34:04,329 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:04,329 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 76 [2024-11-23 11:34:04,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:04,419 INFO L85 PathProgramCache]: Analyzing trace with hash -403328781, now seen corresponding path program 1 times [2024-11-23 11:34:04,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:34:04,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641651607] [2024-11-23 11:34:04,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:04,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:04,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:04,827 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:34:04,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641651607] [2024-11-23 11:34:04,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641651607] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:04,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [37871894] [2024-11-23 11:34:04,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:04,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:04,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 11:34:04,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:34:05,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:05,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [37871894] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:05,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:34:05,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-23 11:34:05,022 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:34:05,022 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 94 is hopeless, skipping. [2024-11-23 11:34:05,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 98 [2024-11-23 11:34:05,022 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:05,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 106 [2024-11-23 11:34:05,022 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:05,023 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2024-11-23 11:34:05,023 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:05,023 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 112 [2024-11-23 11:34:05,023 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:05,023 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:34:05,023 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:34:05,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:05,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1105792968, now seen corresponding path program 1 times [2024-11-23 11:34:05,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:34:05,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485961506] [2024-11-23 11:34:05,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:05,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:05,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:05,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:34:05,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485961506] [2024-11-23 11:34:05,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485961506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:05,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739755979] [2024-11-23 11:34:05,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:05,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:34:05,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:34:05,469 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:34:05,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 11:34:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:05,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 11:34:05,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:34:06,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:06,450 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:34:06,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:06,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739755979] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:34:06,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:34:06,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 16, 16] total 33 [2024-11-23 11:34:06,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430107060] [2024-11-23 11:34:06,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:34:06,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-23 11:34:06,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:34:06,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-23 11:34:06,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=419, Invalid=703, Unknown=0, NotChecked=0, Total=1122 [2024-11-23 11:34:06,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:06,953 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:34:06,953 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) [2024-11-23 11:34:06,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:06,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:06,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:07,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:07,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:34:07,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 11:34:07,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,SelfDestructingSolverStorable2,SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5,SelfDestructingSolverStorable10,SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:34:07,543 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)] === [2024-11-23 11:34:07,544 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:34:07,544 INFO L139 ounterexampleChecker]: Examining path program with hash 914170402, occurence #3 [2024-11-23 11:34:07,544 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:34:07,548 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:34:07,548 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:07,548 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-23 11:34:07,548 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:07,548 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-23 11:34:07,548 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:07,548 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-23 11:34:07,548 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:07,548 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-23 11:34:07,548 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:07,549 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2024-11-23 11:34:07,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:07,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1738018433, now seen corresponding path program 1 times [2024-11-23 11:34:07,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:34:07,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190396132] [2024-11-23 11:34:07,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:07,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 11:34:07,678 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-23 11:34:07,678 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-23 11:34:07,678 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 46 [2024-11-23 11:34:07,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:07,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1438251416, now seen corresponding path program 1 times [2024-11-23 11:34:07,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:34:07,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692553876] [2024-11-23 11:34:07,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:07,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:08,074 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:34:08,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692553876] [2024-11-23 11:34:08,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692553876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:08,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [923448927] [2024-11-23 11:34:08,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:08,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:08,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 11:34:08,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:34:08,424 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:08,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [923448927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:08,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:34:08,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2024-11-23 11:34:08,425 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:34:08,425 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 62 [2024-11-23 11:34:08,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:08,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1316124251, now seen corresponding path program 1 times [2024-11-23 11:34:08,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:34:08,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571385229] [2024-11-23 11:34:08,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:08,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:09,189 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:09,190 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:34:09,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571385229] [2024-11-23 11:34:09,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571385229] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:09,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1171512653] [2024-11-23 11:34:09,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:09,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:09,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 11:34:09,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:34:10,004 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:10,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1171512653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:10,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:34:10,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 32 [2024-11-23 11:34:10,005 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:34:10,005 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 74 [2024-11-23 11:34:10,006 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:10,006 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2024-11-23 11:34:10,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:10,066 INFO L85 PathProgramCache]: Analyzing trace with hash 860775889, now seen corresponding path program 1 times [2024-11-23 11:34:10,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:34:10,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989581289] [2024-11-23 11:34:10,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:10,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:11,016 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:11,016 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:34:11,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989581289] [2024-11-23 11:34:11,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989581289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:11,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1187103342] [2024-11-23 11:34:11,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:11,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:11,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-23 11:34:11,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:34:11,994 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:11,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1187103342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:11,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:34:11,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 38 [2024-11-23 11:34:11,995 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:34:11,995 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 97 is hopeless, skipping. [2024-11-23 11:34:11,995 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 101 [2024-11-23 11:34:11,995 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:11,995 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 109 [2024-11-23 11:34:11,995 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:11,995 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 113 [2024-11-23 11:34:11,995 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:11,996 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 115 [2024-11-23 11:34:11,996 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:11,996 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:34:11,997 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:34:11,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:11,999 INFO L85 PathProgramCache]: Analyzing trace with hash -888214774, now seen corresponding path program 2 times [2024-11-23 11:34:11,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:34:11,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717481720] [2024-11-23 11:34:11,999 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:34:12,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:12,060 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 11:34:12,060 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:34:12,863 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 11:34:12,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:34:12,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717481720] [2024-11-23 11:34:12,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717481720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:34:12,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:34:12,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 11:34:12,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458712545] [2024-11-23 11:34:12,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:34:12,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 11:34:12,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:34:12,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 11:34:12,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-23 11:34:12,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:12,867 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:34:12,867 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) [2024-11-23 11:34:12,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:12,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:12,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:34:12,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:13,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:13,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:13,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:34:13,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:34:13,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,SelfDestructingSolverStorable11,SelfDestructingSolverStorable12,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14,SelfDestructingSolverStorable15,SelfDestructingSolverStorable16,SelfDestructingSolverStorable17 [2024-11-23 11:34:13,356 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)] === [2024-11-23 11:34:13,357 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:34:13,357 INFO L139 ounterexampleChecker]: Examining path program with hash -263525716, occurence #1 [2024-11-23 11:34:13,357 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:34:13,357 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:34:13,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:13,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1030656024, now seen corresponding path program 3 times [2024-11-23 11:34:13,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:34:13,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731726197] [2024-11-23 11:34:13,358 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:34:13,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:13,722 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-23 11:34:13,722 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:34:14,699 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 54 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-23 11:34:14,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:34:14,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731726197] [2024-11-23 11:34:14,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731726197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:14,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15411803] [2024-11-23 11:34:14,700 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:34:14,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:34:14,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:34:14,702 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:34:14,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 11:34:15,032 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-23 11:34:15,032 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:34:15,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-23 11:34:15,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:34:16,062 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 48 proven. 16 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-23 11:34:16,062 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:34:16,730 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 51 proven. 13 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-23 11:34:16,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15411803] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:34:16,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:34:16,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 54 [2024-11-23 11:34:16,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061129496] [2024-11-23 11:34:16,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:34:16,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-23 11:34:16,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:34:16,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-23 11:34:16,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=858, Invalid=2112, Unknown=0, NotChecked=0, Total=2970 [2024-11-23 11:34:16,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:16,736 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:34:16,737 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) [2024-11-23 11:34:16,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:16,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:16,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:34:16,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:34:16,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:17,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:17,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:17,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:34:17,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:34:17,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:34:17,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 11:34:17,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:34:17,430 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)] === [2024-11-23 11:34:17,430 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:34:17,431 INFO L139 ounterexampleChecker]: Examining path program with hash -263525716, occurence #2 [2024-11-23 11:34:17,431 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:34:17,431 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:34:17,431 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:17,431 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-23 11:34:17,431 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:17,431 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-23 11:34:17,431 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:17,431 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-23 11:34:17,431 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:17,431 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-23 11:34:17,431 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:17,431 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2024-11-23 11:34:17,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:17,481 INFO L85 PathProgramCache]: Analyzing trace with hash 231944852, now seen corresponding path program 1 times [2024-11-23 11:34:17,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:34:17,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147077041] [2024-11-23 11:34:17,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:17,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 11:34:17,596 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-23 11:34:17,596 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-23 11:34:17,596 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 93 [2024-11-23 11:34:17,596 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:17,596 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 112 [2024-11-23 11:34:17,596 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:17,597 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 119 [2024-11-23 11:34:17,597 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:17,597 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 126 [2024-11-23 11:34:17,597 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:17,597 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 130 [2024-11-23 11:34:17,597 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:17,598 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 134 [2024-11-23 11:34:17,598 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:17,598 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2024-11-23 11:34:17,598 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:17,598 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 142 [2024-11-23 11:34:17,598 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:17,598 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 144 [2024-11-23 11:34:17,598 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:17,598 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 146 [2024-11-23 11:34:17,599 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:17,599 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:34:17,599 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:34:17,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:17,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1121976024, now seen corresponding path program 4 times [2024-11-23 11:34:17,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:34:17,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991251739] [2024-11-23 11:34:17,600 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:34:17,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:17,641 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:34:17,641 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:34:18,087 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 36 proven. 68 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-23 11:34:18,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:34:18,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991251739] [2024-11-23 11:34:18,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991251739] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:18,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290634784] [2024-11-23 11:34:18,088 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:34:18,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:34:18,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:34:18,091 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:34:18,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 11:34:18,270 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:34:18,270 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:34:18,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-23 11:34:18,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:34:19,220 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 36 proven. 68 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-23 11:34:19,221 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:34:19,610 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 36 proven. 68 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-23 11:34:19,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290634784] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:34:19,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:34:19,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 30, 9] total 38 [2024-11-23 11:34:19,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198171282] [2024-11-23 11:34:19,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:34:19,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-23 11:34:19,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:34:19,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-23 11:34:19,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1176, Unknown=0, NotChecked=0, Total=1406 [2024-11-23 11:34:19,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:19,613 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:34:19,614 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) [2024-11-23 11:34:19,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:19,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:19,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:34:19,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:34:19,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:34:19,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:22,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:22,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:22,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:34:22,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:34:22,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:34:22,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-23 11:34:22,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 11:34:22,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,SelfDestructingSolverStorable21,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:34:22,407 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)] === [2024-11-23 11:34:22,407 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:34:22,408 INFO L139 ounterexampleChecker]: Examining path program with hash 912401715, occurence #1 [2024-11-23 11:34:22,408 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:34:22,408 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:34:22,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:22,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1477182383, now seen corresponding path program 5 times [2024-11-23 11:34:22,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:34:22,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387910738] [2024-11-23 11:34:22,409 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:34:22,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:22,710 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-23 11:34:22,710 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:34:24,671 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 505 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:24,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:34:24,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387910738] [2024-11-23 11:34:24,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387910738] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:24,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577433984] [2024-11-23 11:34:24,672 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:34:24,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:34:24,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:34:24,676 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:34:24,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 11:34:25,251 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-23 11:34:25,252 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:34:25,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-23 11:34:25,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:34:27,207 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 505 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-23 11:34:27,207 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:34:27,757 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 119 proven. 1 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2024-11-23 11:34:27,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577433984] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:34:27,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:34:27,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 43, 8] total 79 [2024-11-23 11:34:27,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795449647] [2024-11-23 11:34:27,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:34:27,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2024-11-23 11:34:27,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:34:27,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2024-11-23 11:34:27,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=594, Invalid=5568, Unknown=0, NotChecked=0, Total=6162 [2024-11-23 11:34:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:27,764 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:34:27,764 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) [2024-11-23 11:34:27,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:27,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:27,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:34:27,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:34:27,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:34:27,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-11-23 11:34:27,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:32,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:32,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:32,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:34:32,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:34:32,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:34:32,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-23 11:34:32,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:34:32,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-23 11:34:32,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:34:32,979 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)] === [2024-11-23 11:34:32,979 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:34:32,979 INFO L139 ounterexampleChecker]: Examining path program with hash -262292346, occurence #1 [2024-11-23 11:34:32,979 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:34:32,979 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:34:32,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:32,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1746116919, now seen corresponding path program 6 times [2024-11-23 11:34:32,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:34:32,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355805761] [2024-11-23 11:34:32,980 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 11:34:32,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:33,831 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-11-23 11:34:33,831 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:34:36,335 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 32 proven. 135 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2024-11-23 11:34:36,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:34:36,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355805761] [2024-11-23 11:34:36,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355805761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:36,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168269230] [2024-11-23 11:34:36,336 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 11:34:36,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:34:36,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:34:36,339 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:34:36,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 11:34:37,197 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-11-23 11:34:37,197 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:34:37,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-23 11:34:37,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:34:38,965 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 32 proven. 642 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-23 11:34:38,965 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:34:39,487 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 21 proven. 146 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2024-11-23 11:34:39,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168269230] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:34:39,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:34:39,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 53, 9] total 64 [2024-11-23 11:34:39,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329994517] [2024-11-23 11:34:39,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:34:39,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-11-23 11:34:39,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:34:39,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-11-23 11:34:39,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=3402, Unknown=0, NotChecked=0, Total=4032 [2024-11-23 11:34:39,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:39,492 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:34:39,493 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) [2024-11-23 11:34:39,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:39,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:39,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:34:39,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:34:39,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:34:39,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-11-23 11:34:39,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:34:39,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:44,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:44,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:44,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:34:44,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:34:44,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:34:44,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-23 11:34:44,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:34:44,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:34:44,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-23 11:34:44,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:34:44,275 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)] === [2024-11-23 11:34:44,275 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:34:44,276 INFO L139 ounterexampleChecker]: Examining path program with hash -997610431, occurence #1 [2024-11-23 11:34:44,276 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:34:44,276 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:34:44,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:44,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1899021756, now seen corresponding path program 7 times [2024-11-23 11:34:44,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:34:44,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853453692] [2024-11-23 11:34:44,276 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 11:34:44,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:54,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1706 backedges. 1617 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:54,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:34:54,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853453692] [2024-11-23 11:34:54,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853453692] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:54,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501607860] [2024-11-23 11:34:54,319 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 11:34:54,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:34:54,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:34:54,321 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:34:54,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 11:34:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:54,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 1527 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-23 11:34:54,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:34:59,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1706 backedges. 1497 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:59,063 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:35:03,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1706 backedges. 1640 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:35:03,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501607860] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:35:03,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:35:03,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 55, 55] total 203 [2024-11-23 11:35:03,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118079296] [2024-11-23 11:35:03,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:35:03,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 204 states [2024-11-23 11:35:03,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:35:03,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 204 interpolants. [2024-11-23 11:35:03,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8114, Invalid=33298, Unknown=0, NotChecked=0, Total=41412 [2024-11-23 11:35:03,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:03,516 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:35:03,517 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) [2024-11-23 11:35:03,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:03,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:35:03,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:35:03,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:35:03,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:35:03,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-11-23 11:35:03,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:35:03,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:35:03,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:04,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:04,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:35:04,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:35:04,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:35:04,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:35:04,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-23 11:35:04,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:35:04,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:35:04,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-23 11:35:04,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 11:35:04,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-23 11:35:04,603 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)] === [2024-11-23 11:35:04,604 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:35:04,604 INFO L139 ounterexampleChecker]: Examining path program with hash -997610431, occurence #2 [2024-11-23 11:35:04,604 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:35:04,604 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:35:04,604 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:04,604 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-23 11:35:04,604 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:35:04,606 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-11-23 11:35:04,606 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:35:04,606 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2024-11-23 11:35:04,606 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:35:04,606 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-23 11:35:04,606 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:35:04,607 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 271 [2024-11-23 11:35:04,607 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:04,607 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 321 [2024-11-23 11:35:04,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:35:04,626 INFO L85 PathProgramCache]: Analyzing trace with hash -8324859, now seen corresponding path program 1 times [2024-11-23 11:35:04,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:35:04,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83804954] [2024-11-23 11:35:04,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:35:04,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:35:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:35:13,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1800 backedges. 1500 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:35:13,128 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:35:13,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83804954] [2024-11-23 11:35:13,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83804954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:35:13,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1493407121] [2024-11-23 11:35:13,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:35:13,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:35:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:35:13,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 99 conjuncts are in the unsatisfiable core [2024-11-23 11:35:13,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:35:23,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1800 backedges. 1357 proven. 443 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:35:23,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1493407121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:35:23,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:35:23,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95] total 190 [2024-11-23 11:35:23,113 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:35:23,113 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 330 [2024-11-23 11:35:23,113 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:23,113 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 337 [2024-11-23 11:35:23,113 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:23,113 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 344 [2024-11-23 11:35:23,113 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:23,113 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 348 [2024-11-23 11:35:23,113 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:23,113 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 352 [2024-11-23 11:35:23,113 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:23,113 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 356 [2024-11-23 11:35:23,113 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:23,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 360 [2024-11-23 11:35:23,114 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:23,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 364 [2024-11-23 11:35:23,114 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:23,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 368 [2024-11-23 11:35:23,114 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:23,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 372 [2024-11-23 11:35:23,114 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:23,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 374 [2024-11-23 11:35:23,114 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:23,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 376 [2024-11-23 11:35:23,114 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:35:23,114 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:35:23,114 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:35:23,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:35:23,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1929262934, now seen corresponding path program 8 times [2024-11-23 11:35:23,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:35:23,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017181647] [2024-11-23 11:35:23,115 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:35:23,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:35:23,371 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:35:23,371 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:35:31,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 1483 proven. 329 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-23 11:35:31,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:35:31,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017181647] [2024-11-23 11:35:31,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017181647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:35:31,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951050957] [2024-11-23 11:35:31,505 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:35:31,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:35:31,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:35:31,508 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:35:31,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 11:35:31,935 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:35:31,935 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:35:31,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 1644 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-23 11:35:31,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:35:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 1497 proven. 443 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:35:37,137 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:35:43,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 1640 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:35:43,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951050957] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:35:43,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:35:43,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 68, 68] total 227 [2024-11-23 11:35:43,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753926715] [2024-11-23 11:35:43,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:35:43,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 228 states [2024-11-23 11:35:43,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:35:43,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 228 interpolants. [2024-11-23 11:35:43,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8974, Invalid=42782, Unknown=0, NotChecked=0, Total=51756 [2024-11-23 11:35:43,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:43,208 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:35:43,210 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) [2024-11-23 11:35:43,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:43,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:35:43,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:35:43,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:35:43,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:35:43,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-11-23 11:35:43,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:35:43,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:35:43,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-11-23 11:35:43,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:45,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:35:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:35:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:35:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:35:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-23 11:35:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:35:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:35:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-23 11:35:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-11-23 11:35:45,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-23 11:35:45,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,SelfDestructingSolverStorable26,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-23 11:35:45,316 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)] === [2024-11-23 11:35:45,316 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:35:45,316 INFO L139 ounterexampleChecker]: Examining path program with hash -997610431, occurence #3 [2024-11-23 11:35:45,316 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:35:45,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:35:45,317 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:45,317 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2024-11-23 11:35:45,317 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:35:45,317 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2024-11-23 11:35:45,317 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:35:45,317 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2024-11-23 11:35:45,317 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:35:45,317 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2024-11-23 11:35:45,317 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:35:45,317 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 290 [2024-11-23 11:35:45,317 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:45,318 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 340 [2024-11-23 11:35:45,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:35:45,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1280091510, now seen corresponding path program 1 times [2024-11-23 11:35:45,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:35:45,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347200801] [2024-11-23 11:35:45,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:35:45,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:35:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 11:35:46,734 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-23 11:35:46,734 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-23 11:35:46,735 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 349 [2024-11-23 11:35:46,735 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:46,735 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 356 [2024-11-23 11:35:46,735 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:46,735 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 363 [2024-11-23 11:35:46,735 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:46,735 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 367 [2024-11-23 11:35:46,736 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:46,736 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 371 [2024-11-23 11:35:46,736 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:46,736 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 375 [2024-11-23 11:35:46,736 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:46,736 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 379 [2024-11-23 11:35:46,736 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:46,736 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 383 [2024-11-23 11:35:46,736 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:46,737 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 387 [2024-11-23 11:35:46,737 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:46,737 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 391 [2024-11-23 11:35:46,737 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:46,737 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 393 [2024-11-23 11:35:46,737 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:46,737 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 395 [2024-11-23 11:35:46,737 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:35:46,737 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:35:46,737 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:35:46,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:35:46,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1874386500, now seen corresponding path program 9 times [2024-11-23 11:35:46,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:35:46,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076936110] [2024-11-23 11:35:46,738 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:35:46,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:35:50,625 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-11-23 11:35:50,625 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:35:54,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2586 backedges. 128 proven. 273 refuted. 0 times theorem prover too weak. 2185 trivial. 0 not checked. [2024-11-23 11:35:54,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:35:54,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076936110] [2024-11-23 11:35:54,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076936110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:35:54,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323673573] [2024-11-23 11:35:54,524 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:35:54,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:35:54,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:35:54,527 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:35:54,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 11:35:56,512 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-11-23 11:35:56,512 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:35:56,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-11-23 11:35:56,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:35:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2586 backedges. 128 proven. 1512 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-23 11:35:59,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:36:00,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2586 backedges. 105 proven. 296 refuted. 0 times theorem prover too weak. 2185 trivial. 0 not checked. [2024-11-23 11:36:00,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323673573] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:36:00,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:36:00,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 84, 13] total 98 [2024-11-23 11:36:00,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090235175] [2024-11-23 11:36:00,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:36:00,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-11-23 11:36:00,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:36:00,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-11-23 11:36:00,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1108, Invalid=8398, Unknown=0, NotChecked=0, Total=9506 [2024-11-23 11:36:00,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:00,091 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:36:00,091 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) [2024-11-23 11:36:00,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:00,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:00,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:36:00,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:36:00,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:36:00,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-11-23 11:36:00,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:36:00,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:36:00,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-11-23 11:36:00,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2024-11-23 11:36:00,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:36:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:36:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:36:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-23 11:36:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:36:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:36:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-23 11:36:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-11-23 11:36:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2024-11-23 11:36:11,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-23 11:36:11,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-23 11:36:11,244 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)] === [2024-11-23 11:36:11,244 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:36:11,245 INFO L139 ounterexampleChecker]: Examining path program with hash 856460343, occurence #1 [2024-11-23 11:36:11,245 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:36:11,245 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:36:11,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:11,245 INFO L85 PathProgramCache]: Analyzing trace with hash 326511109, now seen corresponding path program 10 times [2024-11-23 11:36:11,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:36:11,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021766360] [2024-11-23 11:36:11,246 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:36:11,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:11,435 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:36:11,435 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:36:14,487 INFO L134 CoverageAnalysis]: Checked inductivity of 4868 backedges. 242 proven. 497 refuted. 0 times theorem prover too weak. 4129 trivial. 0 not checked. [2024-11-23 11:36:14,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:36:14,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021766360] [2024-11-23 11:36:14,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021766360] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:14,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898027152] [2024-11-23 11:36:14,487 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:36:14,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:36:14,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:36:14,489 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:36:14,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 11:36:14,941 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:36:14,941 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:36:14,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 122 conjuncts are in the unsatisfiable core [2024-11-23 11:36:14,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:20,451 INFO L134 CoverageAnalysis]: Checked inductivity of 4868 backedges. 242 proven. 3680 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-23 11:36:20,451 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:36:22,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4868 backedges. 210 proven. 529 refuted. 0 times theorem prover too weak. 4129 trivial. 0 not checked. [2024-11-23 11:36:22,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898027152] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:36:22,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:36:22,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 123, 16] total 143 [2024-11-23 11:36:22,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337892681] [2024-11-23 11:36:22,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:36:22,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 143 states [2024-11-23 11:36:22,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:36:22,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2024-11-23 11:36:22,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2352, Invalid=17954, Unknown=0, NotChecked=0, Total=20306 [2024-11-23 11:36:22,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:22,070 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:36:22,071 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) [2024-11-23 11:36:22,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:22,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:22,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:36:22,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:36:22,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:36:22,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-11-23 11:36:22,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:36:22,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:36:22,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-11-23 11:36:22,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2024-11-23 11:36:22,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2024-11-23 11:36:22,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:47,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:47,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:47,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:36:47,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:36:47,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:36:47,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-23 11:36:47,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:36:47,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-23 11:36:47,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-23 11:36:47,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-11-23 11:36:47,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2024-11-23 11:36:47,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2024-11-23 11:36:47,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-23 11:36:47,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:36:47,591 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)] === [2024-11-23 11:36:47,591 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:36:47,591 INFO L139 ounterexampleChecker]: Examining path program with hash -997610431, occurence #4 [2024-11-23 11:36:47,591 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:36:47,591 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:36:47,591 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:47,591 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2024-11-23 11:36:47,592 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:47,592 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2024-11-23 11:36:47,592 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:47,592 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2024-11-23 11:36:47,592 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:47,592 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2024-11-23 11:36:47,592 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:47,593 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 562 [2024-11-23 11:36:47,593 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:47,593 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 660 [2024-11-23 11:36:47,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:47,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1094637241, now seen corresponding path program 1 times [2024-11-23 11:36:47,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:47,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055255194] [2024-11-23 11:36:47,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:47,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:23,687 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 7711 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:37:23,687 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:37:23,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055255194] [2024-11-23 11:37:23,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055255194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:23,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1502142892] [2024-11-23 11:37:23,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:23,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:24,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 2790 conjuncts, 198 conjuncts are in the unsatisfiable core [2024-11-23 11:37:24,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:38:05,338 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 7381 proven. 1276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:38:05,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1502142892] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:05,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:38:05,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [194, 194] total 388 [2024-11-23 11:38:05,339 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:38:05,339 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 669 [2024-11-23 11:38:05,339 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,339 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 676 [2024-11-23 11:38:05,339 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,339 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 683 [2024-11-23 11:38:05,339 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,340 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 687 [2024-11-23 11:38:05,340 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,340 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 691 [2024-11-23 11:38:05,340 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,340 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 695 [2024-11-23 11:38:05,340 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,340 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 699 [2024-11-23 11:38:05,340 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,340 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 703 [2024-11-23 11:38:05,340 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,341 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 707 [2024-11-23 11:38:05,341 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,341 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 711 [2024-11-23 11:38:05,341 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,341 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 715 [2024-11-23 11:38:05,341 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,341 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 719 [2024-11-23 11:38:05,341 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,341 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 723 [2024-11-23 11:38:05,341 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,342 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 727 [2024-11-23 11:38:05,342 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,342 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 731 [2024-11-23 11:38:05,342 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,342 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 735 [2024-11-23 11:38:05,342 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,342 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 739 [2024-11-23 11:38:05,342 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,342 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 743 [2024-11-23 11:38:05,342 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,342 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 747 [2024-11-23 11:38:05,342 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,342 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 749 [2024-11-23 11:38:05,342 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:05,343 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 751 [2024-11-23 11:38:05,343 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:38:05,343 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:38:05,343 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:38:05,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:38:05,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1702883953, now seen corresponding path program 11 times [2024-11-23 11:38:05,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:38:05,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710082710] [2024-11-23 11:38:05,344 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:38:05,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:10,244 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 31 check-sat command(s) [2024-11-23 11:38:10,244 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:38:28,028 INFO L134 CoverageAnalysis]: Checked inductivity of 9259 backedges. 7735 proven. 946 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-23 11:38:28,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:38:28,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710082710] [2024-11-23 11:38:28,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710082710] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:28,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174345309] [2024-11-23 11:38:28,029 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:38:28,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:38:28,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:38:28,031 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:38:28,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e314fae0-86e5-4c7a-8b65-1447fcfec9be/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process