./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-buffer-series3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-series3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX --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 c031a4ce44fce05276ee0c322906dbff86776176e55e116d257d2b83e85a253c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 09:37:04,827 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 09:37:04,877 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-12-05 09:37:04,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 09:37:04,881 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-05 09:37:04,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 09:37:04,900 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-05 09:37:04,900 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-05 09:37:04,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 09:37:04,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-05 09:37:04,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 09:37:04,901 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 09:37:04,901 INFO L153 SettingsManager]: * Use SBE=true [2024-12-05 09:37:04,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 09:37:04,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 09:37:04,901 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 09:37:04,901 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 09:37:04,901 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 09:37:04,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 09:37:04,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 09:37:04,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 09:37:04,901 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 09:37:04,901 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 09:37:04,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 09:37:04,902 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 09:37:04,902 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 09:37:04,902 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 09:37:04,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-05 09:37:04,902 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-05 09:37:04,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-05 09:37:04,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 09:37:04,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 09:37:04,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 09:37:04,902 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-05 09:37:04,902 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-05 09:37:04,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 09:37:04,903 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-05 09:37:04,903 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-05 09:37:04,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 09:37:04,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-05 09:37:04,903 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-05 09:37:04,903 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-05 09:37:04,903 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-05 09:37:04,903 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_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX 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 -> c031a4ce44fce05276ee0c322906dbff86776176e55e116d257d2b83e85a253c [2024-12-05 09:37:05,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 09:37:05,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 09:37:05,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 09:37:05,136 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 09:37:05,136 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 09:37:05,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/../../sv-benchmarks/c/weaver/popl20-more-buffer-series3.wvr.c [2024-12-05 09:37:07,736 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/data/7f42501b1/d57ee76856d84fcbbd5a4b1af1ff833f/FLAGdd3734731 [2024-12-05 09:37:07,922 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 09:37:07,923 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/sv-benchmarks/c/weaver/popl20-more-buffer-series3.wvr.c [2024-12-05 09:37:07,931 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/data/7f42501b1/d57ee76856d84fcbbd5a4b1af1ff833f/FLAGdd3734731 [2024-12-05 09:37:08,317 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/data/7f42501b1/d57ee76856d84fcbbd5a4b1af1ff833f [2024-12-05 09:37:08,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 09:37:08,320 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 09:37:08,321 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 09:37:08,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 09:37:08,324 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 09:37:08,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:37:08" (1/1) ... [2024-12-05 09:37:08,325 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f58dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:37:08, skipping insertion in model container [2024-12-05 09:37:08,325 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:37:08" (1/1) ... [2024-12-05 09:37:08,339 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 09:37:08,476 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_3cdd82c1-5cb7-4e03-82c9-accdbd146421/sv-benchmarks/c/weaver/popl20-more-buffer-series3.wvr.c[4403,4416] [2024-12-05 09:37:08,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 09:37:08,492 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 09:37:08,516 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_3cdd82c1-5cb7-4e03-82c9-accdbd146421/sv-benchmarks/c/weaver/popl20-more-buffer-series3.wvr.c[4403,4416] [2024-12-05 09:37:08,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 09:37:08,532 INFO L204 MainTranslator]: Completed translation [2024-12-05 09:37:08,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:37:08 WrapperNode [2024-12-05 09:37:08,532 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 09:37:08,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 09:37:08,533 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 09:37:08,533 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 09:37:08,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:37:08" (1/1) ... [2024-12-05 09:37:08,544 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:37:08" (1/1) ... [2024-12-05 09:37:08,570 INFO L138 Inliner]: procedures = 26, calls = 67, calls flagged for inlining = 22, calls inlined = 28, statements flattened = 333 [2024-12-05 09:37:08,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 09:37:08,570 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 09:37:08,571 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 09:37:08,571 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 09:37:08,578 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:37:08" (1/1) ... [2024-12-05 09:37:08,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:37:08" (1/1) ... [2024-12-05 09:37:08,582 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:37:08" (1/1) ... [2024-12-05 09:37:08,582 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:37:08" (1/1) ... [2024-12-05 09:37:08,591 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:37:08" (1/1) ... [2024-12-05 09:37:08,593 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:37:08" (1/1) ... [2024-12-05 09:37:08,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:37:08" (1/1) ... [2024-12-05 09:37:08,599 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:37:08" (1/1) ... [2024-12-05 09:37:08,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:37:08" (1/1) ... [2024-12-05 09:37:08,604 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 09:37:08,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 09:37:08,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 09:37:08,605 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 09:37:08,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:37:08" (1/1) ... [2024-12-05 09:37:08,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 09:37:08,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:08,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-12-05 09:37:08,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-12-05 09:37:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 09:37:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-05 09:37:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-05 09:37:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-05 09:37:08,654 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-05 09:37:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-05 09:37:08,654 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-05 09:37:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-05 09:37:08,654 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-05 09:37:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-12-05 09:37:08,654 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-12-05 09:37:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 09:37:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-05 09:37:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-05 09:37:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-05 09:37:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 09:37:08,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 09:37:08,656 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-05 09:37:08,744 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 09:37:08,745 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 09:37:09,145 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-05 09:37:09,146 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 09:37:09,498 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 09:37:09,498 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2024-12-05 09:37:09,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:37:09 BoogieIcfgContainer [2024-12-05 09:37:09,498 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 09:37:09,501 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-05 09:37:09,501 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-05 09:37:09,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-05 09:37:09,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:37:08" (1/3) ... [2024-12-05 09:37:09,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64379f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:37:09, skipping insertion in model container [2024-12-05 09:37:09,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:37:08" (2/3) ... [2024-12-05 09:37:09,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64379f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:37:09, skipping insertion in model container [2024-12-05 09:37:09,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:37:09" (3/3) ... [2024-12-05 09:37:09,507 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series3.wvr.c [2024-12-05 09:37:09,550 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-05 09:37:09,552 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-buffer-series3.wvr.c that has 5 procedures, 46 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2024-12-05 09:37:09,552 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-05 09:37:09,616 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-12-05 09:37:09,663 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 09:37:09,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-05 09:37:09,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:09,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-12-05 09:37:09,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-12-05 09:37:09,743 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 09:37:09,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-05 09:37:09,768 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;@3933c5a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 09:37:09,768 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-12-05 09:37:11,106 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)] === [2024-12-05 09:37:11,106 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:11,106 INFO L139 ounterexampleChecker]: Examining path program with hash 1329879652, occurence #1 [2024-12-05 09:37:11,106 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:37:11,106 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:11,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:11,111 INFO L85 PathProgramCache]: Analyzing trace with hash 942811505, now seen corresponding path program 1 times [2024-12-05 09:37:11,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:11,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593236040] [2024-12-05 09:37:11,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:11,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:12,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 09:37:12,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:12,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593236040] [2024-12-05 09:37:12,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593236040] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:37:12,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:37:12,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-05 09:37:12,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62441294] [2024-12-05 09:37:12,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:37:12,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 09:37:12,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:12,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 09:37:12,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-05 09:37:12,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:12,554 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:12,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-12-05 09:37:12,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:12,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-05 09:37:12,727 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)] === [2024-12-05 09:37:12,727 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:12,727 INFO L139 ounterexampleChecker]: Examining path program with hash 1329879652, occurence #2 [2024-12-05 09:37:12,727 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:37:12,728 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:37:12,728 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:12,728 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-05 09:37:12,728 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:12,728 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-05 09:37:12,740 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:12,740 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-12-05 09:37:12,740 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:12,740 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-05 09:37:12,740 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:12,740 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-12-05 09:37:12,740 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:12,740 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 65 [2024-12-05 09:37:12,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:12,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1327686408, now seen corresponding path program 1 times [2024-12-05 09:37:12,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:12,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323387337] [2024-12-05 09:37:12,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:12,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:13,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:13,021 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:13,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323387337] [2024-12-05 09:37:13,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323387337] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:37:13,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:37:13,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-05 09:37:13,023 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 65. Constructing proof automaton... [2024-12-05 09:37:13,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:37:13,024 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-12-05 09:37:13,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-05 09:37:13,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2024-12-05 09:37:13,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-05 09:37:13,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-05 09:37:13,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:13,026 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:13,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 09:37:13,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:13,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:13,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:13,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:13,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-05 09:37:13,165 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)] === [2024-12-05 09:37:13,165 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:13,165 INFO L139 ounterexampleChecker]: Examining path program with hash 1329879652, occurence #3 [2024-12-05 09:37:13,165 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:37:13,166 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:37:13,166 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:13,166 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-05 09:37:13,166 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:13,166 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-12-05 09:37:13,166 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:13,166 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-05 09:37:13,166 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:13,166 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-12-05 09:37:13,166 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:13,166 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-12-05 09:37:13,166 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:13,167 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 66 [2024-12-05 09:37:13,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:13,233 INFO L85 PathProgramCache]: Analyzing trace with hash 298794351, now seen corresponding path program 1 times [2024-12-05 09:37:13,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:13,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322099683] [2024-12-05 09:37:13,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:13,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:13,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:13,510 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:13,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322099683] [2024-12-05 09:37:13,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322099683] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:13,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [96409308] [2024-12-05 09:37:13,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:13,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:13,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 09:37:13,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:13,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:13,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [96409308] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:13,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:13,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-12-05 09:37:13,750 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:13,750 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2024-12-05 09:37:13,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:13,794 INFO L85 PathProgramCache]: Analyzing trace with hash -551906298, now seen corresponding path program 1 times [2024-12-05 09:37:13,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:13,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509412997] [2024-12-05 09:37:13,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:13,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:14,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:14,099 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:14,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509412997] [2024-12-05 09:37:14,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509412997] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:14,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1332582590] [2024-12-05 09:37:14,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:14,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:14,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 09:37:14,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:14,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:14,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1332582590] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:14,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:14,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-12-05 09:37:14,309 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:14,309 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 78 [2024-12-05 09:37:14,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:14,433 INFO L85 PathProgramCache]: Analyzing trace with hash 70772142, now seen corresponding path program 1 times [2024-12-05 09:37:14,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:14,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044952928] [2024-12-05 09:37:14,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:14,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:14,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:14,898 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:14,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044952928] [2024-12-05 09:37:14,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044952928] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:14,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [758925737] [2024-12-05 09:37:14,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:14,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:14,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 09:37:14,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:15,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:15,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [758925737] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:15,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:15,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-12-05 09:37:15,107 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:15,107 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 86 [2024-12-05 09:37:15,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:15,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1772833649, now seen corresponding path program 1 times [2024-12-05 09:37:15,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:15,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706619195] [2024-12-05 09:37:15,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:15,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:15,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:15,516 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:15,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706619195] [2024-12-05 09:37:15,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706619195] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:15,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [36179186] [2024-12-05 09:37:15,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:15,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:15,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 09:37:15,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:15,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:15,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [36179186] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:15,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:15,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-12-05 09:37:15,706 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:15,706 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 97 is hopeless, skipping. [2024-12-05 09:37:15,706 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 98 is hopeless, skipping. [2024-12-05 09:37:15,706 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 107 is hopeless, skipping. [2024-12-05 09:37:15,706 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 115 [2024-12-05 09:37:15,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:15,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1734575919, now seen corresponding path program 1 times [2024-12-05 09:37:15,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:15,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631705928] [2024-12-05 09:37:15,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:15,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:16,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:16,274 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:16,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631705928] [2024-12-05 09:37:16,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631705928] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:16,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1969229217] [2024-12-05 09:37:16,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:16,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:16,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 09:37:16,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:16,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:16,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1969229217] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:16,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:16,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-12-05 09:37:16,535 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:16,535 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2024-12-05 09:37:16,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:16,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1133332980, now seen corresponding path program 1 times [2024-12-05 09:37:16,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:16,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792352577] [2024-12-05 09:37:16,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:16,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:17,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:17,064 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:17,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792352577] [2024-12-05 09:37:17,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792352577] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:17,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1630226646] [2024-12-05 09:37:17,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:17,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:17,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 09:37:17,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:17,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:17,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1630226646] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:17,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:17,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-12-05 09:37:17,257 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:17,257 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 145 is hopeless, skipping. [2024-12-05 09:37:17,258 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 149 is hopeless, skipping. [2024-12-05 09:37:17,258 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 161 [2024-12-05 09:37:17,258 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:17,258 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 163 [2024-12-05 09:37:17,258 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:17,258 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:37:17,258 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:17,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:17,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1813298445, now seen corresponding path program 1 times [2024-12-05 09:37:17,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:17,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163738876] [2024-12-05 09:37:17,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:17,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:17,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:17,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:17,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163738876] [2024-12-05 09:37:17,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163738876] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:17,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462905266] [2024-12-05 09:37:17,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:17,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:17,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:17,741 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:37:17,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-05 09:37:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:17,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 09:37:17,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:18,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:18,095 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:37:18,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:18,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462905266] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:37:18,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 09:37:18,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-12-05 09:37:18,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464409515] [2024-12-05 09:37:18,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 09:37:18,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-05 09:37:18,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:18,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-05 09:37:18,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-12-05 09:37:18,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:18,235 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:18,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 14 states have internal predecessors, (105), 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) [2024-12-05 09:37:18,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:18,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:18,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:18,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:18,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-05 09:37:18,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,SelfDestructingSolverStorable2,SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5,SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,SelfDestructingSolverStorable12,SelfDestructingSolverStorable9,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14 [2024-12-05 09:37:18,638 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)] === [2024-12-05 09:37:18,639 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:18,639 INFO L139 ounterexampleChecker]: Examining path program with hash 1329879652, occurence #4 [2024-12-05 09:37:18,639 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:37:18,639 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:37:18,639 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:18,639 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-12-05 09:37:18,639 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:18,639 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-05 09:37:18,640 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:18,640 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-12-05 09:37:18,640 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:18,640 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-12-05 09:37:18,640 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:18,640 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-05 09:37:18,640 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:18,640 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 67 [2024-12-05 09:37:18,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:18,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1788877711, now seen corresponding path program 1 times [2024-12-05 09:37:18,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:18,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137008674] [2024-12-05 09:37:18,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:18,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:19,119 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:19,119 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:19,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137008674] [2024-12-05 09:37:19,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137008674] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:19,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [717901833] [2024-12-05 09:37:19,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:19,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:19,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 09:37:19,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:19,362 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:19,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [717901833] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:19,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:19,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-12-05 09:37:19,363 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:19,363 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 78 [2024-12-05 09:37:19,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:19,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1567228234, now seen corresponding path program 1 times [2024-12-05 09:37:19,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:19,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216444152] [2024-12-05 09:37:19,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:19,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:19,684 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-05 09:37:19,684 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:19,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216444152] [2024-12-05 09:37:19,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216444152] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:19,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1037633367] [2024-12-05 09:37:19,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:19,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:19,740 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 09:37:19,742 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:19,893 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-05 09:37:19,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1037633367] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:19,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:19,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-12-05 09:37:19,893 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:19,893 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2024-12-05 09:37:19,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:19,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1339432654, now seen corresponding path program 1 times [2024-12-05 09:37:19,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:19,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144839955] [2024-12-05 09:37:19,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:19,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:20,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:20,312 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:20,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144839955] [2024-12-05 09:37:20,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144839955] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:20,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1158167404] [2024-12-05 09:37:20,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:20,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:20,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-05 09:37:20,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:20,597 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:20,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1158167404] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:20,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:20,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-12-05 09:37:20,598 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:20,598 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2024-12-05 09:37:20,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:20,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1883335023, now seen corresponding path program 1 times [2024-12-05 09:37:20,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:20,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104937893] [2024-12-05 09:37:20,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:20,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:20,936 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-05 09:37:20,936 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:20,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104937893] [2024-12-05 09:37:20,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104937893] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:20,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [141862159] [2024-12-05 09:37:20,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:20,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:20,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 09:37:20,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:21,126 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-05 09:37:21,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [141862159] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:21,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:21,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-12-05 09:37:21,127 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:21,127 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 98 is hopeless, skipping. [2024-12-05 09:37:21,127 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 99 is hopeless, skipping. [2024-12-05 09:37:21,127 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 108 is hopeless, skipping. [2024-12-05 09:37:21,127 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 116 [2024-12-05 09:37:21,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:21,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1575583475, now seen corresponding path program 1 times [2024-12-05 09:37:21,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:21,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521714215] [2024-12-05 09:37:21,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:21,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:21,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-05 09:37:21,555 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:21,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521714215] [2024-12-05 09:37:21,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521714215] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:21,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1504829989] [2024-12-05 09:37:21,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:21,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:21,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 09:37:21,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:21,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-05 09:37:21,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1504829989] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:21,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:21,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-12-05 09:37:21,747 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:21,747 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 125 [2024-12-05 09:37:21,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:21,834 INFO L85 PathProgramCache]: Analyzing trace with hash 46352044, now seen corresponding path program 1 times [2024-12-05 09:37:21,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:21,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744003396] [2024-12-05 09:37:21,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:21,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:22,182 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-05 09:37:22,182 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:22,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744003396] [2024-12-05 09:37:22,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744003396] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:22,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1801034807] [2024-12-05 09:37:22,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:22,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:22,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 09:37:22,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:22,355 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-05 09:37:22,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1801034807] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:22,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:22,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-12-05 09:37:22,355 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:22,355 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 146 is hopeless, skipping. [2024-12-05 09:37:22,355 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 150 is hopeless, skipping. [2024-12-05 09:37:22,356 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 162 [2024-12-05 09:37:22,356 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:22,356 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 164 [2024-12-05 09:37:22,356 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:22,356 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:37:22,356 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:22,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:22,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1665379713, now seen corresponding path program 2 times [2024-12-05 09:37:22,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:22,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127250740] [2024-12-05 09:37:22,356 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 09:37:22,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:22,403 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-05 09:37:22,403 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:22,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-05 09:37:22,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:22,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127250740] [2024-12-05 09:37:22,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127250740] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:37:22,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:37:22,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-05 09:37:22,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054348023] [2024-12-05 09:37:22,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:37:22,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-05 09:37:22,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:22,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-05 09:37:22,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-05 09:37:22,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:22,658 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:22,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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) [2024-12-05 09:37:22,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:22,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:22,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:22,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:22,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,SelfDestructingSolverStorable18,SelfDestructingSolverStorable19,SelfDestructingSolverStorable21,SelfDestructingSolverStorable22,SelfDestructingSolverStorable23,SelfDestructingSolverStorable24,SelfDestructingSolverStorable25,SelfDestructingSolverStorable15,SelfDestructingSolverStorable26,SelfDestructingSolverStorable16,SelfDestructingSolverStorable27,SelfDestructingSolverStorable17 [2024-12-05 09:37:22,843 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)] === [2024-12-05 09:37:22,843 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:22,843 INFO L139 ounterexampleChecker]: Examining path program with hash -1588092282, occurence #1 [2024-12-05 09:37:22,843 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:37:22,843 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:22,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:22,844 INFO L85 PathProgramCache]: Analyzing trace with hash -2091741044, now seen corresponding path program 3 times [2024-12-05 09:37:22,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:22,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975207560] [2024-12-05 09:37:22,844 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 09:37:22,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:23,532 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-05 09:37:23,532 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:24,336 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-05 09:37:24,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:24,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975207560] [2024-12-05 09:37:24,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975207560] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:24,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260320107] [2024-12-05 09:37:24,336 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 09:37:24,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:24,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:24,338 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:37:24,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-05 09:37:24,540 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-05 09:37:24,541 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:24,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-05 09:37:24,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:25,263 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-12-05 09:37:25,263 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:37:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-12-05 09:37:26,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260320107] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:37:26,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 09:37:26,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 17] total 48 [2024-12-05 09:37:26,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122266961] [2024-12-05 09:37:26,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 09:37:26,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-12-05 09:37:26,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:26,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-12-05 09:37:26,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=454, Invalid=1802, Unknown=0, NotChecked=0, Total=2256 [2024-12-05 09:37:26,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:26,009 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:26,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 8.166666666666666) internal successors, (392), 48 states have internal predecessors, (392), 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) [2024-12-05 09:37:26,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:26,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:26,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:26,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:26,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:26,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:26,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:26,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:26,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:26,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:37:26,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-05 09:37:27,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-05 09:37:27,063 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)] === [2024-12-05 09:37:27,063 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:27,063 INFO L139 ounterexampleChecker]: Examining path program with hash -1588092282, occurence #2 [2024-12-05 09:37:27,063 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:37:27,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:37:27,063 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:27,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-05 09:37:27,063 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:27,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-12-05 09:37:27,063 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:27,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-05 09:37:27,063 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:27,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-12-05 09:37:27,064 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:27,064 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2024-12-05 09:37:27,064 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:27,064 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 119 [2024-12-05 09:37:27,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:27,095 INFO L85 PathProgramCache]: Analyzing trace with hash 515393159, now seen corresponding path program 1 times [2024-12-05 09:37:27,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:27,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499190309] [2024-12-05 09:37:27,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:27,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:27,400 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-05 09:37:27,400 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:27,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499190309] [2024-12-05 09:37:27,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499190309] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:27,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [317067961] [2024-12-05 09:37:27,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:27,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:27,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 09:37:27,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:27,635 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-05 09:37:27,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [317067961] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:27,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:27,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-12-05 09:37:27,636 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:27,636 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 120 [2024-12-05 09:37:27,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:27,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1202684289, now seen corresponding path program 1 times [2024-12-05 09:37:27,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:27,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962410901] [2024-12-05 09:37:27,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:27,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:28,064 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-05 09:37:28,064 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:28,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962410901] [2024-12-05 09:37:28,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962410901] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:28,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [2063071567] [2024-12-05 09:37:28,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:28,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:28,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 09:37:28,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:28,304 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-05 09:37:28,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [2063071567] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:28,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:28,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-12-05 09:37:28,304 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:28,304 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 129 [2024-12-05 09:37:28,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:28,350 INFO L85 PathProgramCache]: Analyzing trace with hash 503517606, now seen corresponding path program 1 times [2024-12-05 09:37:28,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:28,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912910579] [2024-12-05 09:37:28,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:28,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:28,678 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-05 09:37:28,678 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:28,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912910579] [2024-12-05 09:37:28,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912910579] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:28,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [388493645] [2024-12-05 09:37:28,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:28,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:28,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 09:37:28,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:28,892 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-05 09:37:28,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [388493645] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:28,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:28,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-12-05 09:37:28,892 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:28,892 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 137 [2024-12-05 09:37:28,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:28,935 INFO L85 PathProgramCache]: Analyzing trace with hash -995857826, now seen corresponding path program 1 times [2024-12-05 09:37:28,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:28,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627427023] [2024-12-05 09:37:28,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:28,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:29,106 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-12-05 09:37:29,106 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:29,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627427023] [2024-12-05 09:37:29,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627427023] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:37:29,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:37:29,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 09:37:29,106 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 137. Constructing proof automaton... [2024-12-05 09:37:29,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:37:29,107 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-12-05 09:37:29,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 09:37:29,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2024-12-05 09:37:29,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-05 09:37:29,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-05 09:37:29,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:29,107 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:29,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-12-05 09:37:29,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:29,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:29,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:29,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:29,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:37:29,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:37:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:29,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,SelfDestructingSolverStorable30,SelfDestructingSolverStorable31,SelfDestructingSolverStorable32,SelfDestructingSolverStorable33,SelfDestructingSolverStorable34,SelfDestructingSolverStorable35 [2024-12-05 09:37:29,702 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)] === [2024-12-05 09:37:29,702 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:29,703 INFO L139 ounterexampleChecker]: Examining path program with hash -1687393600, occurence #1 [2024-12-05 09:37:29,703 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:37:29,703 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:29,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:29,703 INFO L85 PathProgramCache]: Analyzing trace with hash 20320912, now seen corresponding path program 4 times [2024-12-05 09:37:29,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:29,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231531522] [2024-12-05 09:37:29,703 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-05 09:37:29,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:29,732 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-05 09:37:29,732 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:29,890 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-05 09:37:29,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:29,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231531522] [2024-12-05 09:37:29,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231531522] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:29,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630571780] [2024-12-05 09:37:29,890 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-05 09:37:29,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:29,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:29,892 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:37:29,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-05 09:37:30,041 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-05 09:37:30,041 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:30,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-05 09:37:30,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:30,234 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-05 09:37:30,234 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:37:30,395 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-05 09:37:30,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630571780] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:37:30,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 09:37:30,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-12-05 09:37:30,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986435049] [2024-12-05 09:37:30,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 09:37:30,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-05 09:37:30,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:30,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-05 09:37:30,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-12-05 09:37:30,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:30,397 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:30,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.285714285714286) internal successors, (132), 21 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 09:37:30,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:30,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:30,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:30,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:30,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:37:30,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:30,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:37:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:30,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-05 09:37:30,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:30,783 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)] === [2024-12-05 09:37:30,783 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:30,783 INFO L139 ounterexampleChecker]: Examining path program with hash -1687393600, occurence #2 [2024-12-05 09:37:30,783 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:37:30,783 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:37:30,783 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:30,783 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-05 09:37:30,783 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:30,783 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-05 09:37:30,783 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:30,783 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-12-05 09:37:30,783 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:30,783 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-12-05 09:37:30,783 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:30,783 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-12-05 09:37:30,783 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:30,784 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 78 [2024-12-05 09:37:30,784 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:30,784 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2024-12-05 09:37:30,784 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:30,784 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:37:30,784 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:30,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:30,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1689834176, now seen corresponding path program 5 times [2024-12-05 09:37:30,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:30,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252481314] [2024-12-05 09:37:30,784 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-05 09:37:30,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:30,832 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-12-05 09:37:30,832 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:31,159 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-05 09:37:31,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:31,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252481314] [2024-12-05 09:37:31,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252481314] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:31,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302628783] [2024-12-05 09:37:31,160 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-05 09:37:31,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:31,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:31,161 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:37:31,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-05 09:37:31,452 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-12-05 09:37:31,452 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:31,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 09:37:31,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:31,561 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-05 09:37:31,561 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-05 09:37:31,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302628783] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:37:31,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-05 09:37:31,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-12-05 09:37:31,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702984296] [2024-12-05 09:37:31,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:37:31,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-05 09:37:31,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:31,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-05 09:37:31,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-05 09:37:31,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:31,563 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:31,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 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) [2024-12-05 09:37:31,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:31,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:31,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:31,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:31,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:37:31,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:31,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:31,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:37:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:31,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-05 09:37:31,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:31,996 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)] === [2024-12-05 09:37:31,996 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:31,996 INFO L139 ounterexampleChecker]: Examining path program with hash -1687393600, occurence #3 [2024-12-05 09:37:31,996 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:37:31,996 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:37:31,996 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:31,996 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-05 09:37:31,997 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:31,997 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-12-05 09:37:31,997 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:31,997 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-12-05 09:37:31,997 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:31,997 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-05 09:37:31,997 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:31,997 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-12-05 09:37:31,997 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:31,997 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2024-12-05 09:37:31,997 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:31,997 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 80 [2024-12-05 09:37:31,997 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:31,997 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:37:31,997 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:31,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:31,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1600486512, now seen corresponding path program 1 times [2024-12-05 09:37:31,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:31,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947216431] [2024-12-05 09:37:31,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:31,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:32,348 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-05 09:37:32,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:32,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947216431] [2024-12-05 09:37:32,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947216431] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:32,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12491068] [2024-12-05 09:37:32,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:32,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:32,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:32,350 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:37:32,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-05 09:37:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:32,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-05 09:37:32,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:32,760 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-05 09:37:32,761 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:37:33,229 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-05 09:37:33,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12491068] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:37:33,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 09:37:33,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 12] total 29 [2024-12-05 09:37:33,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023587552] [2024-12-05 09:37:33,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 09:37:33,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-05 09:37:33,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:33,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-05 09:37:33,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2024-12-05 09:37:33,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:33,232 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:33,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 6.2) internal successors, (186), 29 states have internal predecessors, (186), 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) [2024-12-05 09:37:33,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:33,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:33,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:33,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:33,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:37:33,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:33,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:33,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:33,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:33,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:33,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:33,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:33,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:33,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:37:33,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:33,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:33,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:33,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:37:33,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-05 09:37:34,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:34,161 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)] === [2024-12-05 09:37:34,161 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:34,161 INFO L139 ounterexampleChecker]: Examining path program with hash -354332661, occurence #1 [2024-12-05 09:37:34,161 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:37:34,161 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:34,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:34,162 INFO L85 PathProgramCache]: Analyzing trace with hash 961781301, now seen corresponding path program 2 times [2024-12-05 09:37:34,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:34,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035705454] [2024-12-05 09:37:34,162 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 09:37:34,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:34,191 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-05 09:37:34,191 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:34,518 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-05 09:37:34,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:34,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035705454] [2024-12-05 09:37:34,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035705454] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:37:34,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:37:34,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-05 09:37:34,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685803934] [2024-12-05 09:37:34,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:37:34,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-05 09:37:34,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:34,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-05 09:37:34,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-12-05 09:37:34,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:34,519 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:34,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 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) [2024-12-05 09:37:34,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:34,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:34,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:34,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:34,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:37:34,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:34,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:34,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:34,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:37:34,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:36,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:36,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:36,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:36,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:36,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:37:36,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:36,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:36,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:36,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:37:36,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:37:36,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-05 09:37:36,104 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)] === [2024-12-05 09:37:36,104 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:36,105 INFO L139 ounterexampleChecker]: Examining path program with hash -526307003, occurence #1 [2024-12-05 09:37:36,105 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:37:36,105 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:36,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:36,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1690212541, now seen corresponding path program 3 times [2024-12-05 09:37:36,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:36,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080790047] [2024-12-05 09:37:36,105 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 09:37:36,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:36,511 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-12-05 09:37:36,511 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:37,280 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 37 proven. 53 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2024-12-05 09:37:37,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:37,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080790047] [2024-12-05 09:37:37,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080790047] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:37,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506144789] [2024-12-05 09:37:37,280 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 09:37:37,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:37,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:37,282 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:37:37,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-05 09:37:37,608 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-12-05 09:37:37,608 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:37,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-05 09:37:37,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:38,115 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 79 proven. 13 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2024-12-05 09:37:38,115 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:37:38,614 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 50 proven. 42 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2024-12-05 09:37:38,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506144789] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:37:38,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 09:37:38,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 31 [2024-12-05 09:37:38,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667489585] [2024-12-05 09:37:38,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 09:37:38,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-05 09:37:38,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:38,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-05 09:37:38,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=715, Unknown=0, NotChecked=0, Total=930 [2024-12-05 09:37:38,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:38,616 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:38,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.580645161290323) internal successors, (235), 31 states have internal predecessors, (235), 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) [2024-12-05 09:37:38,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:38,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:38,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:38,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:38,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:37:38,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:38,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:38,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:38,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:37:38,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:37:38,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:38,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:38,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:38,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:38,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:38,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:37:38,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:38,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:38,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:38,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:37:38,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:37:38,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:37:38,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-05 09:37:39,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:39,102 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)] === [2024-12-05 09:37:39,102 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:39,103 INFO L139 ounterexampleChecker]: Examining path program with hash -526307003, occurence #2 [2024-12-05 09:37:39,103 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:37:39,103 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:37:39,103 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:39,103 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-05 09:37:39,103 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:39,103 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-05 09:37:39,104 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:39,104 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-12-05 09:37:39,104 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:39,104 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-12-05 09:37:39,104 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:39,104 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-12-05 09:37:39,104 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:39,104 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 113 [2024-12-05 09:37:39,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:39,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1125563762, now seen corresponding path program 1 times [2024-12-05 09:37:39,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:39,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875663213] [2024-12-05 09:37:39,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:39,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:39,786 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-05 09:37:39,786 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:39,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875663213] [2024-12-05 09:37:39,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875663213] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:39,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [402508728] [2024-12-05 09:37:39,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:39,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:39,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-05 09:37:39,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:40,336 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 71 proven. 24 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-05 09:37:40,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [402508728] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:40,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:40,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2024-12-05 09:37:40,336 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:40,337 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 231 [2024-12-05 09:37:40,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:40,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1019325644, now seen corresponding path program 1 times [2024-12-05 09:37:40,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:40,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10811151] [2024-12-05 09:37:40,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:40,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:41,120 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 44 proven. 227 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-12-05 09:37:41,120 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:41,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10811151] [2024-12-05 09:37:41,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10811151] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:41,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [255819323] [2024-12-05 09:37:41,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:41,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:41,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-05 09:37:41,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:41,712 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 242 proven. 29 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-12-05 09:37:41,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [255819323] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:41,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:41,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2024-12-05 09:37:41,713 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:41,713 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 232 is hopeless, skipping. [2024-12-05 09:37:41,713 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 252 is hopeless, skipping. [2024-12-05 09:37:41,713 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 254 [2024-12-05 09:37:41,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:41,740 INFO L85 PathProgramCache]: Analyzing trace with hash -784699225, now seen corresponding path program 1 times [2024-12-05 09:37:41,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:41,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097262456] [2024-12-05 09:37:41,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:41,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:42,752 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 14 proven. 63 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-12-05 09:37:42,752 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:42,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097262456] [2024-12-05 09:37:42,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097262456] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:42,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1491123137] [2024-12-05 09:37:42,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:42,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:42,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-05 09:37:42,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:43,505 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 103 proven. 21 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-12-05 09:37:43,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1491123137] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:43,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:43,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2024-12-05 09:37:43,506 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:43,506 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 261 [2024-12-05 09:37:43,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:43,548 INFO L85 PathProgramCache]: Analyzing trace with hash 36147570, now seen corresponding path program 1 times [2024-12-05 09:37:43,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:43,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293009121] [2024-12-05 09:37:43,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:43,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:44,648 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 18 proven. 63 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-12-05 09:37:44,648 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:44,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293009121] [2024-12-05 09:37:44,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293009121] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:44,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [91389430] [2024-12-05 09:37:44,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:44,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:44,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-05 09:37:44,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:45,330 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 107 proven. 21 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-12-05 09:37:45,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [91389430] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:45,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:45,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2024-12-05 09:37:45,331 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:45,331 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 278 [2024-12-05 09:37:45,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:45,401 INFO L85 PathProgramCache]: Analyzing trace with hash 818044016, now seen corresponding path program 1 times [2024-12-05 09:37:45,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:45,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244885551] [2024-12-05 09:37:45,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:45,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:46,327 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 22 proven. 49 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2024-12-05 09:37:46,327 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:46,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244885551] [2024-12-05 09:37:46,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244885551] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:46,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1534921517] [2024-12-05 09:37:46,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:46,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:46,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-05 09:37:46,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:46,964 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 64 proven. 21 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2024-12-05 09:37:46,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1534921517] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:46,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:46,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 29 [2024-12-05 09:37:46,964 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:46,964 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 281 [2024-12-05 09:37:47,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:47,006 INFO L85 PathProgramCache]: Analyzing trace with hash 698950730, now seen corresponding path program 1 times [2024-12-05 09:37:47,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:47,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971605328] [2024-12-05 09:37:47,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:47,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:48,203 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 22 proven. 49 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2024-12-05 09:37:48,204 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:48,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971605328] [2024-12-05 09:37:48,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971605328] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:48,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1718975993] [2024-12-05 09:37:48,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:48,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:48,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 1230 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-05 09:37:48,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:48,853 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 64 proven. 21 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2024-12-05 09:37:48,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1718975993] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:48,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:48,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 29 [2024-12-05 09:37:48,854 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:48,854 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 296 is hopeless, skipping. [2024-12-05 09:37:48,854 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 309 is hopeless, skipping. [2024-12-05 09:37:48,854 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 311 is hopeless, skipping. [2024-12-05 09:37:48,854 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 318 is hopeless, skipping. [2024-12-05 09:37:48,854 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 331 is hopeless, skipping. [2024-12-05 09:37:48,854 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 333 [2024-12-05 09:37:48,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:48,892 INFO L85 PathProgramCache]: Analyzing trace with hash 925925929, now seen corresponding path program 1 times [2024-12-05 09:37:48,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:48,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464235917] [2024-12-05 09:37:48,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:48,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:50,045 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 2 proven. 68 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2024-12-05 09:37:50,045 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:50,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464235917] [2024-12-05 09:37:50,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464235917] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:50,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1498172785] [2024-12-05 09:37:50,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:50,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:50,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 1422 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-05 09:37:50,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:50,693 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 49 proven. 21 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2024-12-05 09:37:50,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1498172785] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:50,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:50,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2024-12-05 09:37:50,694 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:50,694 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 337 [2024-12-05 09:37:50,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:50,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1037854681, now seen corresponding path program 1 times [2024-12-05 09:37:50,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:50,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420824195] [2024-12-05 09:37:50,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:50,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:52,111 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 61 proven. 49 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2024-12-05 09:37:52,111 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:52,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420824195] [2024-12-05 09:37:52,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420824195] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:52,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1779899897] [2024-12-05 09:37:52,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:52,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:52,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-05 09:37:52,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:53,032 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 85 proven. 21 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2024-12-05 09:37:53,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1779899897] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:53,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:53,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 29 [2024-12-05 09:37:53,032 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:53,032 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 353 [2024-12-05 09:37:53,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:53,071 INFO L85 PathProgramCache]: Analyzing trace with hash 475771813, now seen corresponding path program 1 times [2024-12-05 09:37:53,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:37:53,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727759667] [2024-12-05 09:37:53,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:53,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:54,295 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 67 proven. 49 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2024-12-05 09:37:54,295 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:37:54,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727759667] [2024-12-05 09:37:54,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727759667] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:54,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [27674720] [2024-12-05 09:37:54,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:54,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:54,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 1485 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-05 09:37:54,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:55,078 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 61 proven. 23 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2024-12-05 09:37:55,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [27674720] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:55,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:55,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 30 [2024-12-05 09:37:55,078 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:37:55,078 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 374 is hopeless, skipping. [2024-12-05 09:37:55,078 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 387 is hopeless, skipping. [2024-12-05 09:37:55,079 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 389 is hopeless, skipping. [2024-12-05 09:37:55,079 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 408 is hopeless, skipping. [2024-12-05 09:37:55,079 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 411 is hopeless, skipping. [2024-12-05 09:37:55,079 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 431 is hopeless, skipping. [2024-12-05 09:37:55,079 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 441 is hopeless, skipping. [2024-12-05 09:37:55,079 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 451 [2024-12-05 09:37:55,079 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:55,079 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 452 [2024-12-05 09:37:55,079 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:55,079 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:37:55,079 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:55,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:55,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1030749037, now seen corresponding path program 4 times [2024-12-05 09:37:55,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:55,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950994897] [2024-12-05 09:37:55,080 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-05 09:37:55,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:55,312 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-05 09:37:55,312 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:57,957 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 488 proven. 35 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-12-05 09:37:57,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:57,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950994897] [2024-12-05 09:37:57,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950994897] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:57,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874913959] [2024-12-05 09:37:57,958 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-05 09:37:57,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:57,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:57,959 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:37:57,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-05 09:37:58,388 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-05 09:37:58,388 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:58,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-05 09:37:58,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:58,488 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2024-12-05 09:37:58,488 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-05 09:37:58,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874913959] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:37:58,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-05 09:37:58,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [33] total 35 [2024-12-05 09:37:58,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799468086] [2024-12-05 09:37:58,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:37:58,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-05 09:37:58,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:58,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-05 09:37:58,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=893, Unknown=0, NotChecked=0, Total=1260 [2024-12-05 09:37:58,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:58,490 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:58,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 09:37:58,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:58,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:37:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:37:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:37:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:37:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:37:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:37:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:37:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:37:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:58,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-05 09:37:59,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,SelfDestructingSolverStorable51,SelfDestructingSolverStorable41,SelfDestructingSolverStorable52,SelfDestructingSolverStorable42,SelfDestructingSolverStorable53,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43,SelfDestructingSolverStorable54,SelfDestructingSolverStorable44,SelfDestructingSolverStorable55,SelfDestructingSolverStorable45,SelfDestructingSolverStorable56,SelfDestructingSolverStorable46,SelfDestructingSolverStorable57,SelfDestructingSolverStorable47,SelfDestructingSolverStorable58,SelfDestructingSolverStorable48,SelfDestructingSolverStorable59,SelfDestructingSolverStorable49 [2024-12-05 09:37:59,108 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)] === [2024-12-05 09:37:59,108 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:59,108 INFO L139 ounterexampleChecker]: Examining path program with hash 997263677, occurence #1 [2024-12-05 09:37:59,108 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:37:59,108 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:59,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:59,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1264055873, now seen corresponding path program 5 times [2024-12-05 09:37:59,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:59,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617665370] [2024-12-05 09:37:59,109 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-05 09:37:59,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:59,141 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-12-05 09:37:59,141 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:59,378 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-05 09:37:59,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:59,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617665370] [2024-12-05 09:37:59,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617665370] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:59,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670694985] [2024-12-05 09:37:59,379 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-05 09:37:59,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:59,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:59,380 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:37:59,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-05 09:37:59,935 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-12-05 09:37:59,936 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:59,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-05 09:37:59,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:00,165 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-05 09:38:00,165 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:38:00,329 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-05 09:38:00,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670694985] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:38:00,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 09:38:00,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 29 [2024-12-05 09:38:00,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173091896] [2024-12-05 09:38:00,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 09:38:00,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-05 09:38:00,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:38:00,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-05 09:38:00,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=639, Unknown=0, NotChecked=0, Total=870 [2024-12-05 09:38:00,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:38:00,330 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:38:00,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.7) internal successors, (171), 29 states have internal predecessors, (171), 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) [2024-12-05 09:38:00,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:00,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:00,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:00,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:00,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:38:00,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:00,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:38:00,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:38:00,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:38:00,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:38:00,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:38:00,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:00,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:38:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:38:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:38:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:38:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:38:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:38:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:38:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:38:00,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-05 09:38:00,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:38:00,822 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-05 09:38:00,822 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:38:00,822 INFO L139 ounterexampleChecker]: Examining path program with hash 997263677, occurence #2 [2024-12-05 09:38:00,822 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:38:00,822 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:38:00,822 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:38:00,822 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-05 09:38:00,822 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:38:00,822 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-12-05 09:38:00,822 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:38:00,822 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-12-05 09:38:00,822 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:38:00,822 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-12-05 09:38:00,822 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:38:00,822 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-12-05 09:38:00,822 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:38:00,823 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2024-12-05 09:38:00,823 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:38:00,823 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2024-12-05 09:38:00,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:00,866 INFO L85 PathProgramCache]: Analyzing trace with hash -2109877223, now seen corresponding path program 1 times [2024-12-05 09:38:00,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:38:00,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874965222] [2024-12-05 09:38:00,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:00,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:00,949 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-12-05 09:38:00,949 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:38:00,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874965222] [2024-12-05 09:38:00,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874965222] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:38:00,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:38:00,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 09:38:00,950 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 71. Constructing proof automaton... [2024-12-05 09:38:00,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:38:00,950 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-12-05 09:38:00,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 09:38:00,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2024-12-05 09:38:00,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-05 09:38:00,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-05 09:38:00,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:38:00,951 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:38:00,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-12-05 09:38:00,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:00,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:00,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:00,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:00,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:38:00,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:00,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:38:00,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:38:00,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:38:00,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:38:00,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:38:00,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:00,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:38:00,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:38:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:38:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:38:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:38:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:38:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:38:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:38:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:38:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-12-05 09:38:01,199 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-05 09:38:01,199 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:38:01,199 INFO L139 ounterexampleChecker]: Examining path program with hash -276435238, occurence #1 [2024-12-05 09:38:01,199 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:38:01,199 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:38:01,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:01,199 INFO L85 PathProgramCache]: Analyzing trace with hash -238730754, now seen corresponding path program 6 times [2024-12-05 09:38:01,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:38:01,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076371701] [2024-12-05 09:38:01,200 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-05 09:38:01,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:01,224 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-05 09:38:01,224 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:38:01,349 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-12-05 09:38:01,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:38:01,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076371701] [2024-12-05 09:38:01,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076371701] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:38:01,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:38:01,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-05 09:38:01,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935098774] [2024-12-05 09:38:01,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:38:01,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-05 09:38:01,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:38:01,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-05 09:38:01,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-05 09:38:01,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:38:01,350 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:38:01,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-12-05 09:38:01,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:01,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:38:01,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:38:01,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:38:01,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:38:01,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:38:01,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:38:01,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:38:01,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:38:01,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:38:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:38:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:38:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:38:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:38:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:38:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:38:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:01,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-12-05 09:38:01,520 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-05 09:38:01,520 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:38:01,521 INFO L139 ounterexampleChecker]: Examining path program with hash 355099259, occurence #1 [2024-12-05 09:38:01,521 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:38:01,521 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:38:01,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:01,521 INFO L85 PathProgramCache]: Analyzing trace with hash 211777456, now seen corresponding path program 7 times [2024-12-05 09:38:01,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:38:01,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204518207] [2024-12-05 09:38:01,521 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-05 09:38:01,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:01,836 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-12-05 09:38:01,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:38:01,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204518207] [2024-12-05 09:38:01,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204518207] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:01,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135359421] [2024-12-05 09:38:01,837 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-05 09:38:01,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:38:01,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:38:01,838 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:38:01,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-05 09:38:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:02,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-05 09:38:02,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:02,313 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-05 09:38:02,313 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:38:02,628 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-05 09:38:02,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135359421] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:38:02,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 09:38:02,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35 [2024-12-05 09:38:02,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287080487] [2024-12-05 09:38:02,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 09:38:02,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-12-05 09:38:02,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:38:02,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-12-05 09:38:02,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=1050, Unknown=0, NotChecked=0, Total=1260 [2024-12-05 09:38:02,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:38:02,630 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:38:02,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.722222222222222) internal successors, (170), 35 states have internal predecessors, (170), 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) [2024-12-05 09:38:02,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:02,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:02,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:02,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:02,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:38:02,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:02,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:38:02,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:38:02,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:38:02,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:38:02,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:38:02,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:02,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:38:02,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:02,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:02,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:38:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:38:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:38:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:38:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:38:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:38:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:38:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:38:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-12-05 09:38:04,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-05 09:38:05,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:38:05,022 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-05 09:38:05,023 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:38:05,023 INFO L139 ounterexampleChecker]: Examining path program with hash -1076717501, occurence #1 [2024-12-05 09:38:05,023 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:38:05,023 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:38:05,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:05,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1562033500, now seen corresponding path program 8 times [2024-12-05 09:38:05,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:38:05,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196067713] [2024-12-05 09:38:05,024 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 09:38:05,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:05,367 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 09:38:05,367 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:38:07,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 15 proven. 84 refuted. 0 times theorem prover too weak. 1895 trivial. 0 not checked. [2024-12-05 09:38:07,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:38:07,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196067713] [2024-12-05 09:38:07,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196067713] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:07,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361654439] [2024-12-05 09:38:07,216 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 09:38:07,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:38:07,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:38:07,217 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:38:07,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-05 09:38:07,744 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 09:38:07,744 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:38:07,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-05 09:38:07,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:08,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 914 proven. 25 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2024-12-05 09:38:08,286 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:38:08,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 883 proven. 56 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2024-12-05 09:38:08,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361654439] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:38:08,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 09:38:08,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 46 [2024-12-05 09:38:08,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837569670] [2024-12-05 09:38:08,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 09:38:08,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-12-05 09:38:08,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:38:08,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-12-05 09:38:08,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=1760, Unknown=0, NotChecked=0, Total=2070 [2024-12-05 09:38:08,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:38:08,805 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:38:08,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 7.1521739130434785) internal successors, (329), 46 states have internal predecessors, (329), 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) [2024-12-05 09:38:08,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:08,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:08,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:08,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:08,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:38:08,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:08,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:38:08,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:38:08,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:38:08,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:38:08,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:38:08,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:08,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:38:08,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:08,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:08,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-12-05 09:38:08,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:38:09,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-12-05 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-05 09:38:09,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-05 09:38:09,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:38:09,493 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-05 09:38:09,493 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:38:09,493 INFO L139 ounterexampleChecker]: Examining path program with hash -1076717501, occurence #2 [2024-12-05 09:38:09,493 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:38:09,493 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:38:09,493 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:38:09,493 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-12-05 09:38:09,494 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:38:09,494 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-12-05 09:38:09,494 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:38:09,494 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-12-05 09:38:09,494 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:38:09,494 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-12-05 09:38:09,494 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:38:09,494 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-12-05 09:38:09,494 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:38:09,494 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 179 [2024-12-05 09:38:09,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:09,538 INFO L85 PathProgramCache]: Analyzing trace with hash -420979542, now seen corresponding path program 1 times [2024-12-05 09:38:09,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:38:09,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319277333] [2024-12-05 09:38:09,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:09,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:10,144 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 34 proven. 219 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-12-05 09:38:10,144 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:38:10,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319277333] [2024-12-05 09:38:10,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319277333] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:10,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [601326114] [2024-12-05 09:38:10,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:10,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:10,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-05 09:38:10,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:10,724 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 211 proven. 42 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-12-05 09:38:10,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [601326114] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:10,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:38:10,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-12-05 09:38:10,724 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:38:10,724 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 184 [2024-12-05 09:38:10,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:10,803 INFO L85 PathProgramCache]: Analyzing trace with hash 138762978, now seen corresponding path program 1 times [2024-12-05 09:38:10,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:38:10,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203711597] [2024-12-05 09:38:10,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:10,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:11,453 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 49 proven. 205 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-12-05 09:38:11,454 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:38:11,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203711597] [2024-12-05 09:38:11,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203711597] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:11,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1680504260] [2024-12-05 09:38:11,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:11,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:11,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-05 09:38:11,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:12,020 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 226 proven. 28 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-12-05 09:38:12,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1680504260] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:12,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:38:12,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2024-12-05 09:38:12,020 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:38:12,020 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 289 [2024-12-05 09:38:12,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:12,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2095327473, now seen corresponding path program 1 times [2024-12-05 09:38:12,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:38:12,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289501699] [2024-12-05 09:38:12,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:12,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:13,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 810 proven. 179 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-12-05 09:38:13,518 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:38:13,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289501699] [2024-12-05 09:38:13,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289501699] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:13,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1725103995] [2024-12-05 09:38:13,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:13,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:13,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-05 09:38:13,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:14,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 960 proven. 28 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-05 09:38:14,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1725103995] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:14,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:38:14,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27] total 52 [2024-12-05 09:38:14,793 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:38:14,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 388 [2024-12-05 09:38:14,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:14,831 INFO L85 PathProgramCache]: Analyzing trace with hash 250480672, now seen corresponding path program 1 times [2024-12-05 09:38:14,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:38:14,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797984553] [2024-12-05 09:38:14,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:14,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:16,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1589 backedges. 825 proven. 164 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2024-12-05 09:38:16,298 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:38:16,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797984553] [2024-12-05 09:38:16,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797984553] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:16,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1463497215] [2024-12-05 09:38:16,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:16,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:16,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-05 09:38:16,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:17,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1589 backedges. 877 proven. 112 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2024-12-05 09:38:17,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1463497215] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:17,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:38:17,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-12-05 09:38:17,101 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:38:17,101 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 407 is hopeless, skipping. [2024-12-05 09:38:17,101 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 410 is hopeless, skipping. [2024-12-05 09:38:17,101 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 413 is hopeless, skipping. [2024-12-05 09:38:17,101 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 435 is hopeless, skipping. [2024-12-05 09:38:17,101 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 436 [2024-12-05 09:38:17,101 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:38:17,101 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 438 is hopeless, skipping. [2024-12-05 09:38:17,101 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 465 is hopeless, skipping. [2024-12-05 09:38:17,101 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 478 is hopeless, skipping. [2024-12-05 09:38:17,101 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 480 [2024-12-05 09:38:17,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:17,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1151297665, now seen corresponding path program 1 times [2024-12-05 09:38:17,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:38:17,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711961852] [2024-12-05 09:38:17,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:17,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:19,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1872 backedges. 891 proven. 164 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2024-12-05 09:38:19,170 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:38:19,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711961852] [2024-12-05 09:38:19,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711961852] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:19,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1370648128] [2024-12-05 09:38:19,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:19,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:19,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-05 09:38:19,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:19,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1872 backedges. 943 proven. 112 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2024-12-05 09:38:19,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1370648128] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:19,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:38:19,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-12-05 09:38:19,922 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:38:19,923 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 507 is hopeless, skipping. [2024-12-05 09:38:19,923 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 524 is hopeless, skipping. [2024-12-05 09:38:19,923 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 537 is hopeless, skipping. [2024-12-05 09:38:19,923 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 549 is hopeless, skipping. [2024-12-05 09:38:19,923 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 551 is hopeless, skipping. [2024-12-05 09:38:19,923 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 578 is hopeless, skipping. [2024-12-05 09:38:19,923 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 592 [2024-12-05 09:38:19,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:19,972 INFO L85 PathProgramCache]: Analyzing trace with hash 89798172, now seen corresponding path program 1 times [2024-12-05 09:38:19,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:38:19,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235686056] [2024-12-05 09:38:19,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:19,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:22,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2008 backedges. 906 proven. 164 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2024-12-05 09:38:22,249 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:38:22,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235686056] [2024-12-05 09:38:22,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235686056] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:22,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [458116424] [2024-12-05 09:38:22,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:22,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:22,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 2388 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-05 09:38:22,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:23,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2008 backedges. 958 proven. 112 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2024-12-05 09:38:23,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [458116424] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:23,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:38:23,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-12-05 09:38:23,167 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:38:23,168 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 602 is hopeless, skipping. [2024-12-05 09:38:23,168 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 611 [2024-12-05 09:38:23,168 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:38:23,168 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 613 [2024-12-05 09:38:23,168 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:38:23,168 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:38:23,168 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:38:23,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:23,169 INFO L85 PathProgramCache]: Analyzing trace with hash 657960230, now seen corresponding path program 9 times [2024-12-05 09:38:23,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:38:23,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432180394] [2024-12-05 09:38:23,169 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 09:38:23,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:24,928 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-12-05 09:38:24,928 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:38:27,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2008 backedges. 232 proven. 754 refuted. 0 times theorem prover too weak. 1022 trivial. 0 not checked. [2024-12-05 09:38:27,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:38:27,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432180394] [2024-12-05 09:38:27,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432180394] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:27,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017665681] [2024-12-05 09:38:27,800 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 09:38:27,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:38:27,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:38:27,802 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:38:27,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-05 09:38:30,595 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-12-05 09:38:30,596 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:38:30,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 1803 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-05 09:38:30,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:31,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2008 backedges. 78 proven. 28 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-12-05 09:38:31,852 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:38:33,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2008 backedges. 42 proven. 64 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-12-05 09:38:33,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017665681] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:38:33,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 09:38:33,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 21, 21] total 74 [2024-12-05 09:38:33,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010538642] [2024-12-05 09:38:33,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 09:38:33,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-12-05 09:38:33,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:38:33,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-12-05 09:38:33,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1085, Invalid=4465, Unknown=0, NotChecked=0, Total=5550 [2024-12-05 09:38:33,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:38:33,219 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:38:33,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 6.506666666666667) internal successors, (488), 74 states have internal predecessors, (488), 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) [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-12-05 09:38:33,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:38:34,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-05 09:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-05 09:38:34,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-05 09:38:34,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,SelfDestructingSolverStorable71,SelfDestructingSolverStorable72,SelfDestructingSolverStorable73,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74,SelfDestructingSolverStorable75,SelfDestructingSolverStorable65,SelfDestructingSolverStorable76,SelfDestructingSolverStorable66,SelfDestructingSolverStorable77,SelfDestructingSolverStorable67,SelfDestructingSolverStorable68,SelfDestructingSolverStorable69 [2024-12-05 09:38:34,414 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-05 09:38:34,414 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:38:34,414 INFO L139 ounterexampleChecker]: Examining path program with hash -1076717501, occurence #3 [2024-12-05 09:38:34,414 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:38:34,415 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:38:34,415 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:38:34,415 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-05 09:38:34,415 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:38:34,415 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-12-05 09:38:34,415 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:38:34,415 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-12-05 09:38:34,415 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:38:34,415 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-12-05 09:38:34,415 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:38:34,415 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2024-12-05 09:38:34,415 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:38:34,416 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 181 [2024-12-05 09:38:34,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:34,464 INFO L85 PathProgramCache]: Analyzing trace with hash 886395648, now seen corresponding path program 1 times [2024-12-05 09:38:34,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:38:34,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144658902] [2024-12-05 09:38:34,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:34,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:35,083 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 34 proven. 219 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-12-05 09:38:35,083 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:38:35,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144658902] [2024-12-05 09:38:35,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144658902] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:35,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1070404393] [2024-12-05 09:38:35,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:35,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:35,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-05 09:38:35,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:35,637 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 211 proven. 42 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-12-05 09:38:35,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1070404393] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:35,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:38:35,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-12-05 09:38:35,638 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:38:35,638 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 186 [2024-12-05 09:38:35,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:35,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1019720520, now seen corresponding path program 1 times [2024-12-05 09:38:35,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:38:35,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440844220] [2024-12-05 09:38:35,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:35,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:36,346 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 49 proven. 205 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-12-05 09:38:36,346 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:38:36,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440844220] [2024-12-05 09:38:36,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440844220] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:36,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [273465869] [2024-12-05 09:38:36,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:36,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:36,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-05 09:38:36,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:36,893 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 226 proven. 28 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-12-05 09:38:36,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [273465869] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:36,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:38:36,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2024-12-05 09:38:36,894 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:38:36,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 291 [2024-12-05 09:38:36,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:36,963 INFO L85 PathProgramCache]: Analyzing trace with hash 969551687, now seen corresponding path program 1 times [2024-12-05 09:38:36,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:38:36,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004305864] [2024-12-05 09:38:36,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:36,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:38,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 810 proven. 179 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-12-05 09:38:38,387 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:38:38,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004305864] [2024-12-05 09:38:38,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004305864] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:38,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1225046703] [2024-12-05 09:38:38,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:38,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:38,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 1285 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-05 09:38:38,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:39,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 960 proven. 28 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-12-05 09:38:39,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1225046703] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:39,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:38:39,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27] total 52 [2024-12-05 09:38:39,694 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:38:39,694 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 390 [2024-12-05 09:38:39,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:39,729 INFO L85 PathProgramCache]: Analyzing trace with hash 402282998, now seen corresponding path program 1 times [2024-12-05 09:38:39,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:38:39,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690119861] [2024-12-05 09:38:39,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:39,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:41,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1606 backedges. 51 proven. 646 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2024-12-05 09:38:41,352 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:38:41,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690119861] [2024-12-05 09:38:41,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690119861] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:41,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [733847248] [2024-12-05 09:38:41,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:41,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:41,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-05 09:38:41,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:42,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1606 backedges. 624 proven. 73 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2024-12-05 09:38:42,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [733847248] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:42,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:38:42,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2024-12-05 09:38:42,464 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:38:42,464 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 409 is hopeless, skipping. [2024-12-05 09:38:42,464 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 412 is hopeless, skipping. [2024-12-05 09:38:42,464 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 415 is hopeless, skipping. [2024-12-05 09:38:42,464 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 437 is hopeless, skipping. [2024-12-05 09:38:42,464 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 438 [2024-12-05 09:38:42,464 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:38:42,464 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 440 is hopeless, skipping. [2024-12-05 09:38:42,464 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 467 is hopeless, skipping. [2024-12-05 09:38:42,464 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 480 is hopeless, skipping. [2024-12-05 09:38:42,464 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 482 [2024-12-05 09:38:42,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:42,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1670014377, now seen corresponding path program 1 times [2024-12-05 09:38:42,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:38:42,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49503836] [2024-12-05 09:38:42,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:42,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:44,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1889 backedges. 63 proven. 604 refuted. 0 times theorem prover too weak. 1222 trivial. 0 not checked. [2024-12-05 09:38:44,624 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:38:44,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49503836] [2024-12-05 09:38:44,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49503836] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:44,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1869876811] [2024-12-05 09:38:44,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:44,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:44,890 INFO L256 TraceCheckSpWp]: Trace formula consists of 1967 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-05 09:38:44,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:45,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1889 backedges. 594 proven. 73 refuted. 0 times theorem prover too weak. 1222 trivial. 0 not checked. [2024-12-05 09:38:45,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1869876811] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:45,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:38:45,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 40 [2024-12-05 09:38:45,956 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:38:45,956 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 509 is hopeless, skipping. [2024-12-05 09:38:45,956 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 526 is hopeless, skipping. [2024-12-05 09:38:45,956 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 539 is hopeless, skipping. [2024-12-05 09:38:45,956 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 551 is hopeless, skipping. [2024-12-05 09:38:45,956 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 553 is hopeless, skipping. [2024-12-05 09:38:45,956 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 580 is hopeless, skipping. [2024-12-05 09:38:45,956 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 594 [2024-12-05 09:38:46,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:46,002 INFO L85 PathProgramCache]: Analyzing trace with hash 812640242, now seen corresponding path program 1 times [2024-12-05 09:38:46,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:38:46,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67745897] [2024-12-05 09:38:46,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:46,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:48,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 50 proven. 512 refuted. 0 times theorem prover too weak. 1463 trivial. 0 not checked. [2024-12-05 09:38:48,480 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:38:48,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67745897] [2024-12-05 09:38:48,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67745897] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:48,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [90184898] [2024-12-05 09:38:48,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:48,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:48,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 2406 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-05 09:38:48,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:50,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 513 proven. 49 refuted. 0 times theorem prover too weak. 1463 trivial. 0 not checked. [2024-12-05 09:38:50,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [90184898] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:50,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:38:50,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 40 [2024-12-05 09:38:50,010 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:38:50,010 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 604 is hopeless, skipping. [2024-12-05 09:38:50,010 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 613 [2024-12-05 09:38:50,010 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:38:50,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 615 [2024-12-05 09:38:50,011 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:38:50,011 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:38:50,011 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:38:50,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:50,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1800040730, now seen corresponding path program 10 times [2024-12-05 09:38:50,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:38:50,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684309759] [2024-12-05 09:38:50,012 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-05 09:38:50,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:50,401 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-05 09:38:50,401 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:38:54,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 1819 proven. 73 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-12-05 09:38:54,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:38:54,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684309759] [2024-12-05 09:38:54,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684309759] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:38:54,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703636303] [2024-12-05 09:38:54,769 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-05 09:38:54,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:38:54,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:38:54,770 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:38:54,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-05 09:38:55,356 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-05 09:38:55,356 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:38:55,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 2508 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-12-05 09:38:55,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:38:58,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 1879 proven. 43 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-12-05 09:38:58,531 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:39:01,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 1804 proven. 118 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-12-05 09:39:01,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703636303] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:39:01,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 09:39:01,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 49, 49] total 138 [2024-12-05 09:39:01,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758788245] [2024-12-05 09:39:01,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 09:39:01,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 138 states [2024-12-05 09:39:01,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:39:01,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2024-12-05 09:39:01,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4048, Invalid=14858, Unknown=0, NotChecked=0, Total=18906 [2024-12-05 09:39:01,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:39:01,542 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:39:01,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 138 states, 138 states have (on average 9.905797101449275) internal successors, (1367), 138 states have internal predecessors, (1367), 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) [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-12-05 09:39:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-12-05 09:39:01,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-12-05 09:39:01,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:39:02,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:39:02,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:39:02,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:39:02,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:39:02,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:39:02,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:39:02,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:39:02,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:39:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-05 09:39:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:39:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-05 09:39:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:39:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:39:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:39:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:39:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-12-05 09:39:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-05 09:39:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-05 09:39:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-05 09:39:02,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-05 09:39:02,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,SelfDestructingSolverStorable80,SelfDestructingSolverStorable81,SelfDestructingSolverStorable82,SelfDestructingSolverStorable83,SelfDestructingSolverStorable84,SelfDestructingSolverStorable85,SelfDestructingSolverStorable86,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87,SelfDestructingSolverStorable88,SelfDestructingSolverStorable78,SelfDestructingSolverStorable89,SelfDestructingSolverStorable79 [2024-12-05 09:39:02,296 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-05 09:39:02,296 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:39:02,296 INFO L139 ounterexampleChecker]: Examining path program with hash -1076717501, occurence #4 [2024-12-05 09:39:02,296 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:39:02,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:39:02,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:39:02,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-12-05 09:39:02,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:39:02,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-12-05 09:39:02,296 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:39:02,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-12-05 09:39:02,296 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:39:02,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-12-05 09:39:02,296 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:39:02,297 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2024-12-05 09:39:02,297 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:39:02,297 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 191 [2024-12-05 09:39:02,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:39:02,338 INFO L85 PathProgramCache]: Analyzing trace with hash 387620500, now seen corresponding path program 1 times [2024-12-05 09:39:02,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:39:02,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688009201] [2024-12-05 09:39:02,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:39:02,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:39:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:39:02,993 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 313 proven. 55 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-12-05 09:39:02,993 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:39:02,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688009201] [2024-12-05 09:39:02,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688009201] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:39:02,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1031354316] [2024-12-05 09:39:02,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:39:02,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:39:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:39:03,071 INFO L256 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-05 09:39:03,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:39:03,666 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 353 proven. 15 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-12-05 09:39:03,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1031354316] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:39:03,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:39:03,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 38 [2024-12-05 09:39:03,666 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:39:03,666 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 196 [2024-12-05 09:39:03,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:39:03,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1566565000, now seen corresponding path program 1 times [2024-12-05 09:39:03,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:39:03,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407145289] [2024-12-05 09:39:03,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:39:03,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:39:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:39:04,511 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 306 proven. 55 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-12-05 09:39:04,511 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:39:04,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407145289] [2024-12-05 09:39:04,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407145289] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:39:04,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1562841385] [2024-12-05 09:39:04,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:39:04,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:39:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:39:04,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-05 09:39:04,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:39:05,107 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 327 proven. 41 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-12-05 09:39:05,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1562841385] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:39:05,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:39:05,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 35 [2024-12-05 09:39:05,108 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:39:05,108 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 301 [2024-12-05 09:39:05,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:39:05,179 INFO L85 PathProgramCache]: Analyzing trace with hash 810194779, now seen corresponding path program 1 times [2024-12-05 09:39:05,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:39:05,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110830135] [2024-12-05 09:39:05,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:39:05,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:39:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:39:06,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 126 proven. 605 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2024-12-05 09:39:06,534 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:39:06,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110830135] [2024-12-05 09:39:06,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110830135] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:39:06,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [958055168] [2024-12-05 09:39:06,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:39:06,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:39:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:39:06,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 1375 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-05 09:39:06,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:39:07,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 635 proven. 96 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2024-12-05 09:39:07,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [958055168] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:39:07,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:39:07,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 44 [2024-12-05 09:39:07,643 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:39:07,643 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 400 [2024-12-05 09:39:07,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:39:07,684 INFO L85 PathProgramCache]: Analyzing trace with hash 817525446, now seen corresponding path program 1 times [2024-12-05 09:39:07,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:39:07,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083556008] [2024-12-05 09:39:07,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:39:07,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:39:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:39:09,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1724 backedges. 68 proven. 691 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2024-12-05 09:39:09,450 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:39:09,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083556008] [2024-12-05 09:39:09,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083556008] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:39:09,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [148940357] [2024-12-05 09:39:09,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:39:09,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:39:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:39:09,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 1732 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-05 09:39:09,648 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:39:10,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1724 backedges. 675 proven. 84 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2024-12-05 09:39:10,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [148940357] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:39:10,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:39:10,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2024-12-05 09:39:10,645 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:39:10,645 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 419 is hopeless, skipping. [2024-12-05 09:39:10,645 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 422 is hopeless, skipping. [2024-12-05 09:39:10,646 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 425 is hopeless, skipping. [2024-12-05 09:39:10,646 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 447 is hopeless, skipping. [2024-12-05 09:39:10,646 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 448 [2024-12-05 09:39:10,646 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:39:10,646 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 450 is hopeless, skipping. [2024-12-05 09:39:10,646 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 477 is hopeless, skipping. [2024-12-05 09:39:10,646 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 490 is hopeless, skipping. [2024-12-05 09:39:10,646 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 492 [2024-12-05 09:39:10,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:39:10,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1693427161, now seen corresponding path program 1 times [2024-12-05 09:39:10,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:39:10,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39538002] [2024-12-05 09:39:10,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:39:10,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:39:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:39:12,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2007 backedges. 84 proven. 695 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2024-12-05 09:39:12,962 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:39:12,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39538002] [2024-12-05 09:39:12,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39538002] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:39:12,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [487933455] [2024-12-05 09:39:12,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:39:12,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:39:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:39:13,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 2057 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-05 09:39:13,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:39:14,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2007 backedges. 696 proven. 83 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2024-12-05 09:39:14,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [487933455] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:39:14,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:39:14,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 44 [2024-12-05 09:39:14,439 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:39:14,439 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 519 is hopeless, skipping. [2024-12-05 09:39:14,439 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 536 is hopeless, skipping. [2024-12-05 09:39:14,440 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 549 is hopeless, skipping. [2024-12-05 09:39:14,440 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 561 is hopeless, skipping. [2024-12-05 09:39:14,440 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 563 is hopeless, skipping. [2024-12-05 09:39:14,440 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 590 is hopeless, skipping. [2024-12-05 09:39:14,440 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 604 [2024-12-05 09:39:14,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:39:14,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1957428286, now seen corresponding path program 1 times [2024-12-05 09:39:14,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-05 09:39:14,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162555636] [2024-12-05 09:39:14,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:39:14,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:39:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:39:17,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2143 backedges. 62 proven. 533 refuted. 0 times theorem prover too weak. 1548 trivial. 0 not checked. [2024-12-05 09:39:17,300 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-05 09:39:17,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162555636] [2024-12-05 09:39:17,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162555636] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:39:17,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1287829754] [2024-12-05 09:39:17,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:39:17,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:39:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:39:17,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 2496 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-05 09:39:17,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:39:18,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2143 backedges. 536 proven. 59 refuted. 0 times theorem prover too weak. 1548 trivial. 0 not checked. [2024-12-05 09:39:18,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1287829754] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:39:18,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:39:18,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 44 [2024-12-05 09:39:18,883 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-05 09:39:18,883 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 614 is hopeless, skipping. [2024-12-05 09:39:18,883 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 623 [2024-12-05 09:39:18,883 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:39:18,883 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 625 [2024-12-05 09:39:18,883 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:39:18,883 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:39:18,883 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:39:18,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:39:18,883 INFO L85 PathProgramCache]: Analyzing trace with hash 949168164, now seen corresponding path program 11 times [2024-12-05 09:39:18,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:39:18,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538018421] [2024-12-05 09:39:18,883 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-05 09:39:18,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:39:24,073 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-12-05 09:39:24,073 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:39:28,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2143 backedges. 262 proven. 329 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2024-12-05 09:39:28,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:39:28,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538018421] [2024-12-05 09:39:28,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538018421] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:39:28,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603171379] [2024-12-05 09:39:28,509 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-05 09:39:28,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:39:28,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:39:28,511 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:39:28,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd82c1-5cb7-4e03-82c9-accdbd146421/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process