./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_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/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_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c031a4ce44fce05276ee0c322906dbff86776176e55e116d257d2b83e85a253c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 06:22:06,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 06:22:06,571 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-27 06:22:06,583 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 06:22:06,583 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 06:22:06,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 06:22:06,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 06:22:06,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 06:22:06,609 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 06:22:06,610 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 06:22:06,610 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 06:22:06,610 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 06:22:06,610 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 06:22:06,610 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 06:22:06,610 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 06:22:06,610 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 06:22:06,611 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 06:22:06,611 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 06:22:06,611 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 06:22:06,611 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 06:22:06,611 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 06:22:06,611 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 06:22:06,611 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 06:22:06,611 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 06:22:06,611 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 06:22:06,611 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 06:22:06,612 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 06:22:06,612 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 06:22:06,612 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 06:22:06,612 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 06:22:06,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:22:06,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 06:22:06,612 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 06:22:06,612 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 06:22:06,612 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-27 06:22:06,612 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 06:22:06,612 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 06:22:06,612 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-27 06:22:06,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 06:22:06,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 06:22:06,613 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-27 06:22:06,613 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-27 06:22:06,613 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-27 06:22:06,613 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_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c031a4ce44fce05276ee0c322906dbff86776176e55e116d257d2b83e85a253c [2024-11-27 06:22:06,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 06:22:06,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 06:22:06,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 06:22:06,947 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 06:22:06,947 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 06:22:06,949 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/../../sv-benchmarks/c/weaver/popl20-more-buffer-series3.wvr.c [2024-11-27 06:22:09,841 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/data/eeb0a8925/467469e04d6941b18d9af846a1f328d2/FLAG82a568fe0 [2024-11-27 06:22:10,081 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 06:22:10,082 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/sv-benchmarks/c/weaver/popl20-more-buffer-series3.wvr.c [2024-11-27 06:22:10,093 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/data/eeb0a8925/467469e04d6941b18d9af846a1f328d2/FLAG82a568fe0 [2024-11-27 06:22:10,110 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/data/eeb0a8925/467469e04d6941b18d9af846a1f328d2 [2024-11-27 06:22:10,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 06:22:10,114 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 06:22:10,116 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 06:22:10,116 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 06:22:10,121 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 06:22:10,122 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:22:10" (1/1) ... [2024-11-27 06:22:10,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de8dfeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:10, skipping insertion in model container [2024-11-27 06:22:10,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:22:10" (1/1) ... [2024-11-27 06:22:10,148 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 06:22:10,403 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_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/sv-benchmarks/c/weaver/popl20-more-buffer-series3.wvr.c[4403,4416] [2024-11-27 06:22:10,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:22:10,429 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 06:22:10,467 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_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/sv-benchmarks/c/weaver/popl20-more-buffer-series3.wvr.c[4403,4416] [2024-11-27 06:22:10,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:22:10,488 INFO L204 MainTranslator]: Completed translation [2024-11-27 06:22:10,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:10 WrapperNode [2024-11-27 06:22:10,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 06:22:10,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 06:22:10,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 06:22:10,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 06:22:10,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:10" (1/1) ... [2024-11-27 06:22:10,510 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:10" (1/1) ... [2024-11-27 06:22:10,569 INFO L138 Inliner]: procedures = 26, calls = 67, calls flagged for inlining = 22, calls inlined = 28, statements flattened = 333 [2024-11-27 06:22:10,569 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 06:22:10,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 06:22:10,571 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 06:22:10,572 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 06:22:10,581 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:10" (1/1) ... [2024-11-27 06:22:10,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:10" (1/1) ... [2024-11-27 06:22:10,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:10" (1/1) ... [2024-11-27 06:22:10,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:10" (1/1) ... [2024-11-27 06:22:10,612 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:10" (1/1) ... [2024-11-27 06:22:10,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:10" (1/1) ... [2024-11-27 06:22:10,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:10" (1/1) ... [2024-11-27 06:22:10,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:10" (1/1) ... [2024-11-27 06:22:10,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:10" (1/1) ... [2024-11-27 06:22:10,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 06:22:10,635 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 06:22:10,635 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 06:22:10,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 06:22:10,636 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:10" (1/1) ... [2024-11-27 06:22:10,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:22:10,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:10,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-27 06:22:10,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-27 06:22:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 06:22:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 06:22:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 06:22:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 06:22:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 06:22:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 06:22:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 06:22:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-27 06:22:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-27 06:22:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-27 06:22:10,705 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-27 06:22:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 06:22:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 06:22:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 06:22:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 06:22:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 06:22:10,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 06:22:10,707 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 06:22:10,839 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 06:22:10,842 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 06:22:11,463 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 06:22:11,464 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 06:22:11,935 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 06:22:11,937 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-27 06:22:11,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:22:11 BoogieIcfgContainer [2024-11-27 06:22:11,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 06:22:11,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 06:22:11,941 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 06:22:11,947 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 06:22:11,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 06:22:10" (1/3) ... [2024-11-27 06:22:11,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20ebb4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:22:11, skipping insertion in model container [2024-11-27 06:22:11,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:10" (2/3) ... [2024-11-27 06:22:11,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20ebb4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:22:11, skipping insertion in model container [2024-11-27 06:22:11,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:22:11" (3/3) ... [2024-11-27 06:22:11,953 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series3.wvr.c [2024-11-27 06:22:11,970 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 06:22:11,972 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. [2024-11-27 06:22:11,972 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 06:22:12,054 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-27 06:22:12,117 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 06:22:12,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-27 06:22:12,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:12,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-27 06:22:12,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-27 06:22:12,215 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-27 06:22:12,238 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-27 06:22:12,246 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;@6c0f9565, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 06:22:12,246 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-27 06:22:14,232 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:22:14,232 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:14,233 INFO L139 ounterexampleChecker]: Examining path program with hash 1498975703, occurence #1 [2024-11-27 06:22:14,233 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:22:14,233 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:14,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:14,238 INFO L85 PathProgramCache]: Analyzing trace with hash 942811505, now seen corresponding path program 1 times [2024-11-27 06:22:14,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:14,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221591100] [2024-11-27 06:22:14,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:14,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:16,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:22:16,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:16,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221591100] [2024-11-27 06:22:16,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221591100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:16,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:22:16,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 06:22:16,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233902670] [2024-11-27 06:22:16,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:16,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 06:22:16,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:16,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 06:22:16,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 06:22:16,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:16,516 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:16,522 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) [2024-11-27 06:22:16,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:16,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:16,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 06:22:16,768 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:22:16,768 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:16,770 INFO L139 ounterexampleChecker]: Examining path program with hash 1498975703, occurence #2 [2024-11-27 06:22:16,770 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:16,770 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:16,771 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:16,771 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-27 06:22:16,771 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:16,771 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-27 06:22:16,789 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:16,790 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-27 06:22:16,790 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:16,790 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-27 06:22:16,790 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:16,790 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-11-27 06:22:16,790 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:16,790 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 65 [2024-11-27 06:22:16,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:16,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1327686408, now seen corresponding path program 1 times [2024-11-27 06:22:16,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:16,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997232421] [2024-11-27 06:22:16,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:16,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:17,282 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:17,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997232421] [2024-11-27 06:22:17,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997232421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:17,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:22:17,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 06:22:17,285 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 65. Constructing proof automaton... [2024-11-27 06:22:17,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:17,287 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-11-27 06:22:17,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:22:17,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2024-11-27 06:22:17,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:22:17,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 06:22:17,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:17,291 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:17,291 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) [2024-11-27 06:22:17,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:17,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:17,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:17,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:17,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 06:22:17,482 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:22:17,482 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:17,483 INFO L139 ounterexampleChecker]: Examining path program with hash 1498975703, occurence #3 [2024-11-27 06:22:17,483 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:17,483 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:17,483 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:17,483 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-27 06:22:17,483 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:17,484 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-27 06:22:17,484 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:17,484 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-27 06:22:17,484 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:17,484 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-27 06:22:17,484 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:17,484 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-27 06:22:17,484 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:17,484 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 66 [2024-11-27 06:22:17,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:17,586 INFO L85 PathProgramCache]: Analyzing trace with hash 298794351, now seen corresponding path program 1 times [2024-11-27 06:22:17,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:17,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039117902] [2024-11-27 06:22:17,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:17,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:18,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:18,149 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:18,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039117902] [2024-11-27 06:22:18,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039117902] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:18,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1392125439] [2024-11-27 06:22:18,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:18,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:18,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:22:18,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:18,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:18,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1392125439] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:18,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:18,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 06:22:18,559 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:18,559 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2024-11-27 06:22:18,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:18,629 INFO L85 PathProgramCache]: Analyzing trace with hash -551906298, now seen corresponding path program 1 times [2024-11-27 06:22:18,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:18,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009517093] [2024-11-27 06:22:18,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:18,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:19,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:19,169 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:19,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009517093] [2024-11-27 06:22:19,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009517093] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:19,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [413247178] [2024-11-27 06:22:19,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:19,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:19,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:22:19,262 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:19,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:19,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [413247178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:19,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:19,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 06:22:19,487 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:19,487 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 78 [2024-11-27 06:22:19,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:19,620 INFO L85 PathProgramCache]: Analyzing trace with hash 70772142, now seen corresponding path program 1 times [2024-11-27 06:22:19,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:19,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215924106] [2024-11-27 06:22:19,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:19,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:20,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:20,158 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:20,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215924106] [2024-11-27 06:22:20,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215924106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:20,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1239335470] [2024-11-27 06:22:20,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:20,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:20,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:22:20,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:20,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:20,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1239335470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:20,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:20,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 06:22:20,493 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:20,493 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 86 [2024-11-27 06:22:20,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:20,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1772833649, now seen corresponding path program 1 times [2024-11-27 06:22:20,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:20,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206621104] [2024-11-27 06:22:20,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:20,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:21,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:21,137 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:21,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206621104] [2024-11-27 06:22:21,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206621104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:21,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [610627598] [2024-11-27 06:22:21,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:21,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:21,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:22:21,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:21,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:21,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [610627598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:21,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:21,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 06:22:21,446 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:21,446 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 97 is hopeless, skipping. [2024-11-27 06:22:21,446 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 98 is hopeless, skipping. [2024-11-27 06:22:21,446 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 107 is hopeless, skipping. [2024-11-27 06:22:21,446 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 115 [2024-11-27 06:22:21,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:21,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1734575919, now seen corresponding path program 1 times [2024-11-27 06:22:21,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:21,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229854798] [2024-11-27 06:22:21,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:21,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:22,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:22,163 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:22,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229854798] [2024-11-27 06:22:22,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229854798] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:22,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1798969960] [2024-11-27 06:22:22,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:22,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:22,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:22:22,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:22,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:22,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1798969960] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:22,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:22,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 06:22:22,481 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:22,481 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2024-11-27 06:22:22,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:22,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1133332980, now seen corresponding path program 1 times [2024-11-27 06:22:22,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:22,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926797994] [2024-11-27 06:22:22,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:22,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:23,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:23,230 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:23,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926797994] [2024-11-27 06:22:23,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926797994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:23,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [801713327] [2024-11-27 06:22:23,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:23,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:23,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:22:23,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:23,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:23,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [801713327] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:23,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:23,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 06:22:23,565 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:23,565 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 145 is hopeless, skipping. [2024-11-27 06:22:23,565 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 149 is hopeless, skipping. [2024-11-27 06:22:23,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 161 [2024-11-27 06:22:23,565 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:23,566 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 163 [2024-11-27 06:22:23,566 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:23,566 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:22:23,566 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:23,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:23,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1813298445, now seen corresponding path program 1 times [2024-11-27 06:22:23,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:23,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439628593] [2024-11-27 06:22:23,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:23,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:24,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:24,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:24,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439628593] [2024-11-27 06:22:24,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439628593] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:24,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634452148] [2024-11-27 06:22:24,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:24,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:24,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:24,403 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:22:24,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 06:22:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:24,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:22:24,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:24,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:24,864 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:22:25,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:25,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634452148] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:22:25,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:22:25,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-27 06:22:25,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841776897] [2024-11-27 06:22:25,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:22:25,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 06:22:25,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:25,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 06:22:25,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-27 06:22:25,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:25,045 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:25,045 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) [2024-11-27 06:22:25,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:25,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:25,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:25,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:25,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:25,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:25,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 06:22:25,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,SelfDestructingSolverStorable2,SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5,SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,SelfDestructingSolverStorable12,SelfDestructingSolverStorable9,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14 [2024-11-27 06:22:25,512 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:22:25,512 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:25,516 INFO L139 ounterexampleChecker]: Examining path program with hash 1498975703, occurence #4 [2024-11-27 06:22:25,516 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:25,516 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:25,517 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:25,517 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-11-27 06:22:25,517 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:25,517 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-27 06:22:25,517 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:25,517 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-11-27 06:22:25,517 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:25,517 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-27 06:22:25,517 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:25,517 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-27 06:22:25,517 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:25,518 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 67 [2024-11-27 06:22:25,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:25,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1788877711, now seen corresponding path program 1 times [2024-11-27 06:22:25,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:25,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594261532] [2024-11-27 06:22:25,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:25,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:26,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:26,015 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:26,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594261532] [2024-11-27 06:22:26,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594261532] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:26,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [462501856] [2024-11-27 06:22:26,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:26,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:26,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:22:26,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:26,279 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:26,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [462501856] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:26,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:26,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-27 06:22:26,279 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:26,279 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 78 [2024-11-27 06:22:26,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:26,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1567228234, now seen corresponding path program 1 times [2024-11-27 06:22:26,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:26,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847854111] [2024-11-27 06:22:26,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:26,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:26,660 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:22:26,660 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:26,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847854111] [2024-11-27 06:22:26,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847854111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:26,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [246068358] [2024-11-27 06:22:26,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:26,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:26,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:22:26,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:26,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:22:26,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [246068358] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:26,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:26,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-27 06:22:26,926 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:26,926 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2024-11-27 06:22:27,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:27,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1339432654, now seen corresponding path program 1 times [2024-11-27 06:22:27,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:27,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973620141] [2024-11-27 06:22:27,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:27,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:27,476 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:27,477 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:27,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973620141] [2024-11-27 06:22:27,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973620141] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:27,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [440016683] [2024-11-27 06:22:27,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:27,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:27,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 06:22:27,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:27,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:27,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [440016683] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:27,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:27,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-27 06:22:27,909 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:27,909 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2024-11-27 06:22:27,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:27,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1883335023, now seen corresponding path program 1 times [2024-11-27 06:22:27,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:27,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81007597] [2024-11-27 06:22:27,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:27,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:28,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:28,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:22:28,346 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:28,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81007597] [2024-11-27 06:22:28,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81007597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:28,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1941322124] [2024-11-27 06:22:28,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:28,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:28,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:22:28,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:28,636 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:22:28,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1941322124] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:28,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:28,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-27 06:22:28,637 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:28,637 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 98 is hopeless, skipping. [2024-11-27 06:22:28,637 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 99 is hopeless, skipping. [2024-11-27 06:22:28,637 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 108 is hopeless, skipping. [2024-11-27 06:22:28,638 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 116 [2024-11-27 06:22:28,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:28,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1575583475, now seen corresponding path program 1 times [2024-11-27 06:22:28,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:28,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970661978] [2024-11-27 06:22:28,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:28,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:29,311 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:22:29,311 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:29,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970661978] [2024-11-27 06:22:29,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970661978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:29,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [706364264] [2024-11-27 06:22:29,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:29,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:29,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:22:29,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:29,593 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:22:29,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [706364264] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:29,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:29,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-27 06:22:29,594 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:29,594 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 125 [2024-11-27 06:22:29,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:29,715 INFO L85 PathProgramCache]: Analyzing trace with hash 46352044, now seen corresponding path program 1 times [2024-11-27 06:22:29,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:29,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858871376] [2024-11-27 06:22:29,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:29,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:30,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:22:30,203 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:30,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858871376] [2024-11-27 06:22:30,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858871376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:30,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1497549238] [2024-11-27 06:22:30,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:30,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:30,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:22:30,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:22:30,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1497549238] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:30,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:30,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-27 06:22:30,481 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:30,481 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 146 is hopeless, skipping. [2024-11-27 06:22:30,481 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 150 is hopeless, skipping. [2024-11-27 06:22:30,482 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 162 [2024-11-27 06:22:30,482 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:30,482 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 164 [2024-11-27 06:22:30,482 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:30,482 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:22:30,482 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:30,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:30,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1665379713, now seen corresponding path program 2 times [2024-11-27 06:22:30,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:30,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337846267] [2024-11-27 06:22:30,483 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:22:30,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:30,572 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 06:22:30,573 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 06:22:30,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:30,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337846267] [2024-11-27 06:22:30,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337846267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:30,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:22:30,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 06:22:30,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934387466] [2024-11-27 06:22:30,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:30,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 06:22:30,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:30,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 06:22:30,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-27 06:22:30,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:30,978 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:30,979 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) [2024-11-27 06:22:30,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:30,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:30,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:30,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:31,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:31,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:31,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:31,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:31,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,SelfDestructingSolverStorable18,SelfDestructingSolverStorable19,SelfDestructingSolverStorable21,SelfDestructingSolverStorable22,SelfDestructingSolverStorable23,SelfDestructingSolverStorable24,SelfDestructingSolverStorable25,SelfDestructingSolverStorable15,SelfDestructingSolverStorable26,SelfDestructingSolverStorable16,SelfDestructingSolverStorable27,SelfDestructingSolverStorable17 [2024-11-27 06:22:31,257 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:22:31,257 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:31,257 INFO L139 ounterexampleChecker]: Examining path program with hash -1418996231, occurence #1 [2024-11-27 06:22:31,257 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:22:31,257 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:31,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:31,258 INFO L85 PathProgramCache]: Analyzing trace with hash -2091741044, now seen corresponding path program 3 times [2024-11-27 06:22:31,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:31,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131300646] [2024-11-27 06:22:31,258 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:22:31,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:32,097 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 06:22:32,097 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:33,284 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-27 06:22:33,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:33,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131300646] [2024-11-27 06:22:33,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131300646] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:33,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231409134] [2024-11-27 06:22:33,285 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:22:33,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:33,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:33,287 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:22:33,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 06:22:33,636 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 06:22:33,637 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:33,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 06:22:33,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-27 06:22:35,078 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:22:36,294 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-27 06:22:36,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231409134] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:22:36,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:22:36,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 17] total 48 [2024-11-27 06:22:36,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856291915] [2024-11-27 06:22:36,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:22:36,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-27 06:22:36,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:36,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-27 06:22:36,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=454, Invalid=1802, Unknown=0, NotChecked=0, Total=2256 [2024-11-27 06:22:36,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:36,299 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:36,300 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) [2024-11-27 06:22:36,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:36,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:36,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:36,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:36,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:37,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:37,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:37,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:37,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:37,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:22:37,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 06:22:37,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 06:22:37,646 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:22:37,646 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:37,646 INFO L139 ounterexampleChecker]: Examining path program with hash -1418996231, occurence #2 [2024-11-27 06:22:37,646 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:37,647 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:37,647 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:37,647 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-27 06:22:37,647 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:37,647 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-27 06:22:37,647 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:37,647 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-27 06:22:37,648 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:37,648 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-11-27 06:22:37,648 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:37,648 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2024-11-27 06:22:37,648 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:37,648 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 119 [2024-11-27 06:22:37,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:37,719 INFO L85 PathProgramCache]: Analyzing trace with hash 515393159, now seen corresponding path program 1 times [2024-11-27 06:22:37,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:37,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808609150] [2024-11-27 06:22:37,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:37,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:38,223 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-27 06:22:38,224 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:38,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808609150] [2024-11-27 06:22:38,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808609150] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:38,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [959538922] [2024-11-27 06:22:38,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:38,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:38,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:22:38,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:38,586 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-27 06:22:38,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [959538922] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:38,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:38,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-27 06:22:38,586 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:38,586 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 120 [2024-11-27 06:22:38,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:38,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1202684289, now seen corresponding path program 1 times [2024-11-27 06:22:38,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:38,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145707163] [2024-11-27 06:22:38,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:38,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:39,205 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-27 06:22:39,206 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:39,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145707163] [2024-11-27 06:22:39,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145707163] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:39,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [208682538] [2024-11-27 06:22:39,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:39,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:39,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:22:39,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:39,551 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-27 06:22:39,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [208682538] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:39,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:39,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-27 06:22:39,553 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:39,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 129 [2024-11-27 06:22:39,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:39,615 INFO L85 PathProgramCache]: Analyzing trace with hash 503517606, now seen corresponding path program 1 times [2024-11-27 06:22:39,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:39,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600935446] [2024-11-27 06:22:39,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:39,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:40,102 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-27 06:22:40,102 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:40,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600935446] [2024-11-27 06:22:40,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600935446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:40,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [2097646608] [2024-11-27 06:22:40,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:40,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:40,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:22:40,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:40,447 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-27 06:22:40,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [2097646608] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:40,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:40,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-27 06:22:40,448 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:40,448 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 137 [2024-11-27 06:22:40,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:40,553 INFO L85 PathProgramCache]: Analyzing trace with hash -995857826, now seen corresponding path program 1 times [2024-11-27 06:22:40,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:40,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960573199] [2024-11-27 06:22:40,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:40,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:40,835 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-27 06:22:40,835 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:40,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960573199] [2024-11-27 06:22:40,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960573199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:40,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:22:40,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 06:22:40,836 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 137. Constructing proof automaton... [2024-11-27 06:22:40,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:40,836 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-11-27 06:22:40,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 06:22:40,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2024-11-27 06:22:40,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:22:40,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 06:22:40,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:40,837 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:40,837 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) [2024-11-27 06:22:40,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:40,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:40,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:40,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:40,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:22:40,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:41,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:41,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:41,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:41,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:41,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:22:41,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:41,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,SelfDestructingSolverStorable30,SelfDestructingSolverStorable31,SelfDestructingSolverStorable32,SelfDestructingSolverStorable33,SelfDestructingSolverStorable34,SelfDestructingSolverStorable35 [2024-11-27 06:22:41,610 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:22:41,610 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:41,611 INFO L139 ounterexampleChecker]: Examining path program with hash -1518297549, occurence #1 [2024-11-27 06:22:41,611 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:22:41,611 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:41,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:41,611 INFO L85 PathProgramCache]: Analyzing trace with hash 20320912, now seen corresponding path program 4 times [2024-11-27 06:22:41,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:41,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538902349] [2024-11-27 06:22:41,612 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:22:41,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:41,661 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:22:41,661 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:41,918 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-27 06:22:41,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:41,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538902349] [2024-11-27 06:22:41,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538902349] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:41,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29896777] [2024-11-27 06:22:41,919 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:22:41,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:41,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:41,921 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:22:41,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 06:22:42,119 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:22:42,119 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:42,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 06:22:42,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:42,376 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-27 06:22:42,376 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:22:42,644 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-27 06:22:42,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29896777] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:22:42,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:22:42,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-27 06:22:42,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400901227] [2024-11-27 06:22:42,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:22:42,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 06:22:42,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:42,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 06:22:42,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-11-27 06:22:42,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:42,647 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:42,647 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) [2024-11-27 06:22:42,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:42,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:42,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:42,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:42,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:22:42,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:42,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:42,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:42,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:42,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:42,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:42,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:22:42,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:42,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:22:42,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 06:22:43,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-27 06:22:43,113 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:22:43,113 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:43,113 INFO L139 ounterexampleChecker]: Examining path program with hash -1518297549, occurence #2 [2024-11-27 06:22:43,113 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:43,113 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:43,113 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:43,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-27 06:22:43,114 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:43,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-27 06:22:43,114 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:43,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-11-27 06:22:43,114 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:43,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-27 06:22:43,114 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:43,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-27 06:22:43,114 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:43,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 78 [2024-11-27 06:22:43,114 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:43,115 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2024-11-27 06:22:43,115 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:43,115 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:22:43,115 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:43,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:43,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1689834176, now seen corresponding path program 5 times [2024-11-27 06:22:43,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:43,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068287856] [2024-11-27 06:22:43,115 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:22:43,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:43,185 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-27 06:22:43,185 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:43,569 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-27 06:22:43,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:43,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068287856] [2024-11-27 06:22:43,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068287856] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:43,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242873265] [2024-11-27 06:22:43,570 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:22:43,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:43,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:43,572 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:22:43,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 06:22:43,963 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-27 06:22:43,963 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:43,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:22:43,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:44,168 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-27 06:22:44,168 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 06:22:44,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242873265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:44,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 06:22:44,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-11-27 06:22:44,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878036608] [2024-11-27 06:22:44,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:44,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 06:22:44,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:44,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 06:22:44,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-27 06:22:44,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:44,171 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:44,171 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) [2024-11-27 06:22:44,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:44,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:44,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:44,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:44,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:22:44,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:44,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:22:44,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:44,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:44,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:44,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:44,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:44,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:22:44,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:44,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:22:44,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:44,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 06:22:44,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-27 06:22:44,704 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:22:44,705 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:44,705 INFO L139 ounterexampleChecker]: Examining path program with hash -1518297549, occurence #3 [2024-11-27 06:22:44,705 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:44,705 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:44,705 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:44,705 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-27 06:22:44,705 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:44,705 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-27 06:22:44,706 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:44,706 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-27 06:22:44,706 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:44,706 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-11-27 06:22:44,706 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:44,706 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-27 06:22:44,706 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:44,706 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2024-11-27 06:22:44,706 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:44,706 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 80 [2024-11-27 06:22:44,706 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:44,707 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:22:44,707 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:44,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:44,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1600486512, now seen corresponding path program 1 times [2024-11-27 06:22:44,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:44,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331150653] [2024-11-27 06:22:44,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:44,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:45,360 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-27 06:22:45,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:45,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331150653] [2024-11-27 06:22:45,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331150653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:45,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388091720] [2024-11-27 06:22:45,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:45,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:45,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:45,364 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:22:45,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 06:22:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:45,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 06:22:45,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:46,071 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-27 06:22:46,071 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:22:46,646 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-27 06:22:46,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388091720] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:22:46,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:22:46,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 12] total 29 [2024-11-27 06:22:46,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699980867] [2024-11-27 06:22:46,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:22:46,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-27 06:22:46,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:46,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-27 06:22:46,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2024-11-27 06:22:46,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:46,649 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:46,649 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) [2024-11-27 06:22:46,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:46,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:46,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:46,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:46,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:22:46,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:46,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:22:46,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:46,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:47,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:47,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:47,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:47,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:47,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:22:47,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:47,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:22:47,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:47,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:22:47,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 06:22:47,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-27 06:22:47,901 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:22:47,901 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:47,901 INFO L139 ounterexampleChecker]: Examining path program with hash -185236610, occurence #1 [2024-11-27 06:22:47,901 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:22:47,902 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:47,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:47,904 INFO L85 PathProgramCache]: Analyzing trace with hash 961781301, now seen corresponding path program 2 times [2024-11-27 06:22:47,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:47,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241689154] [2024-11-27 06:22:47,904 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:22:47,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:47,951 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 06:22:47,951 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:48,468 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 06:22:48,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:48,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241689154] [2024-11-27 06:22:48,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241689154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:48,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:22:48,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 06:22:48,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657874017] [2024-11-27 06:22:48,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:48,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 06:22:48,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:48,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 06:22:48,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-27 06:22:48,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:48,472 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:48,472 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) [2024-11-27 06:22:48,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:48,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:48,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:48,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:48,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:22:48,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:48,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:22:48,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:48,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:22:48,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:50,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:50,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:50,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:50,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:50,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:22:50,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:50,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:22:50,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:50,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:22:50,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:50,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-27 06:22:50,835 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:22:50,835 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:50,835 INFO L139 ounterexampleChecker]: Examining path program with hash -357210952, occurence #1 [2024-11-27 06:22:50,835 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:22:50,835 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:50,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:50,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1690212541, now seen corresponding path program 3 times [2024-11-27 06:22:50,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:50,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621079605] [2024-11-27 06:22:50,837 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:22:50,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:51,696 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 06:22:51,696 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 37 proven. 53 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2024-11-27 06:22:52,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:52,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621079605] [2024-11-27 06:22:52,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621079605] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:52,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359335981] [2024-11-27 06:22:52,850 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:22:52,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:52,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:52,852 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:22:52,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 06:22:53,366 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 06:22:53,366 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:53,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 06:22:53,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:54,114 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 79 proven. 13 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2024-11-27 06:22:54,115 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:22:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 50 proven. 42 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2024-11-27 06:22:54,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359335981] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:22:54,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:22:54,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 31 [2024-11-27 06:22:54,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965399991] [2024-11-27 06:22:54,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:22:54,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-27 06:22:54,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:54,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-27 06:22:54,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=715, Unknown=0, NotChecked=0, Total=930 [2024-11-27 06:22:54,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:54,827 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:54,827 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) [2024-11-27 06:22:54,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:54,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:54,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:54,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:22:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:22:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:22:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:55,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:22:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:22:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:22:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:55,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:22:55,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 06:22:55,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-27 06:22:55,388 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:22:55,388 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:55,389 INFO L139 ounterexampleChecker]: Examining path program with hash -357210952, occurence #2 [2024-11-27 06:22:55,389 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:55,389 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:55,390 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:55,390 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-27 06:22:55,390 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:55,390 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-27 06:22:55,390 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:55,390 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-27 06:22:55,390 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:55,390 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-27 06:22:55,390 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:55,390 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-11-27 06:22:55,390 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:55,390 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 113 [2024-11-27 06:22:55,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:55,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1125563762, now seen corresponding path program 1 times [2024-11-27 06:22:55,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:55,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433644670] [2024-11-27 06:22:55,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:55,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:56,233 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-27 06:22:56,233 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:56,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433644670] [2024-11-27 06:22:56,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433644670] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:56,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1684711645] [2024-11-27 06:22:56,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:56,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:56,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 06:22:56,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:57,104 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 71 proven. 24 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-27 06:22:57,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1684711645] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:57,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:57,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2024-11-27 06:22:57,105 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:57,105 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 231 [2024-11-27 06:22:57,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:57,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1019325644, now seen corresponding path program 1 times [2024-11-27 06:22:57,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:57,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318299775] [2024-11-27 06:22:57,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:57,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:58,570 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 44 proven. 227 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-27 06:22:58,571 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:58,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318299775] [2024-11-27 06:22:58,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318299775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:58,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [2121149002] [2024-11-27 06:22:58,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:58,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:58,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 06:22:58,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:59,715 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 242 proven. 29 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-27 06:22:59,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [2121149002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:59,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:59,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2024-11-27 06:22:59,716 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:59,716 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 232 is hopeless, skipping. [2024-11-27 06:22:59,716 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 252 is hopeless, skipping. [2024-11-27 06:22:59,716 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 254 [2024-11-27 06:22:59,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:59,743 INFO L85 PathProgramCache]: Analyzing trace with hash -784699225, now seen corresponding path program 1 times [2024-11-27 06:22:59,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:59,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692951535] [2024-11-27 06:22:59,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:59,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:01,304 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 14 proven. 63 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-27 06:23:01,304 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:23:01,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692951535] [2024-11-27 06:23:01,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692951535] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:01,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1769475444] [2024-11-27 06:23:01,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:01,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:01,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 06:23:01,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:02,297 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 103 proven. 21 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-27 06:23:02,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1769475444] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:02,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:23:02,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2024-11-27 06:23:02,297 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:23:02,298 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 261 [2024-11-27 06:23:02,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:02,380 INFO L85 PathProgramCache]: Analyzing trace with hash 36147570, now seen corresponding path program 1 times [2024-11-27 06:23:02,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:23:02,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418136913] [2024-11-27 06:23:02,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:02,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:04,002 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 18 proven. 63 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-27 06:23:04,002 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:23:04,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418136913] [2024-11-27 06:23:04,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418136913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:04,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [110059048] [2024-11-27 06:23:04,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:04,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:04,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 06:23:04,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:05,011 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 107 proven. 21 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-27 06:23:05,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [110059048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:05,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:23:05,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2024-11-27 06:23:05,012 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:23:05,012 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 278 [2024-11-27 06:23:05,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:05,107 INFO L85 PathProgramCache]: Analyzing trace with hash 818044016, now seen corresponding path program 1 times [2024-11-27 06:23:05,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:23:05,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948103543] [2024-11-27 06:23:05,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:05,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:06,281 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 22 proven. 49 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2024-11-27 06:23:06,281 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:23:06,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948103543] [2024-11-27 06:23:06,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948103543] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:06,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [101276511] [2024-11-27 06:23:06,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:06,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:06,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 06:23:06,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:07,145 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 64 proven. 21 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2024-11-27 06:23:07,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [101276511] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:07,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:23:07,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 29 [2024-11-27 06:23:07,146 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:23:07,146 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 281 [2024-11-27 06:23:07,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:07,208 INFO L85 PathProgramCache]: Analyzing trace with hash 698950730, now seen corresponding path program 1 times [2024-11-27 06:23:07,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:23:07,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25576700] [2024-11-27 06:23:07,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:07,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:08,734 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 22 proven. 49 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2024-11-27 06:23:08,735 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:23:08,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25576700] [2024-11-27 06:23:08,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25576700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:08,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1130169752] [2024-11-27 06:23:08,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:08,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:08,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 1230 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 06:23:08,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:09,741 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 64 proven. 21 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2024-11-27 06:23:09,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1130169752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:09,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:23:09,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 29 [2024-11-27 06:23:09,742 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:23:09,742 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 296 is hopeless, skipping. [2024-11-27 06:23:09,742 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 309 is hopeless, skipping. [2024-11-27 06:23:09,742 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 311 is hopeless, skipping. [2024-11-27 06:23:09,742 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 318 is hopeless, skipping. [2024-11-27 06:23:09,742 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 331 is hopeless, skipping. [2024-11-27 06:23:09,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 333 [2024-11-27 06:23:09,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:09,802 INFO L85 PathProgramCache]: Analyzing trace with hash 925925929, now seen corresponding path program 1 times [2024-11-27 06:23:09,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:23:09,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263763750] [2024-11-27 06:23:09,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:09,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:11,109 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 2 proven. 68 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2024-11-27 06:23:11,109 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:23:11,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263763750] [2024-11-27 06:23:11,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263763750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:11,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1163056010] [2024-11-27 06:23:11,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:11,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:11,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 1422 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 06:23:11,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:12,128 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 49 proven. 21 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2024-11-27 06:23:12,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1163056010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:12,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:23:12,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2024-11-27 06:23:12,128 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:23:12,129 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 337 [2024-11-27 06:23:12,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:12,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1037854681, now seen corresponding path program 1 times [2024-11-27 06:23:12,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:23:12,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690601471] [2024-11-27 06:23:12,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:12,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:13,706 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 61 proven. 49 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2024-11-27 06:23:13,706 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:23:13,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690601471] [2024-11-27 06:23:13,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690601471] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:13,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [989790783] [2024-11-27 06:23:13,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:13,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:13,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 06:23:13,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:15,047 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 85 proven. 21 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2024-11-27 06:23:15,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [989790783] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:15,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:23:15,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 29 [2024-11-27 06:23:15,047 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:23:15,047 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 353 [2024-11-27 06:23:15,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:15,098 INFO L85 PathProgramCache]: Analyzing trace with hash 475771813, now seen corresponding path program 1 times [2024-11-27 06:23:15,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:23:15,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369175277] [2024-11-27 06:23:15,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:15,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:16,531 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 67 proven. 49 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2024-11-27 06:23:16,532 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:23:16,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369175277] [2024-11-27 06:23:16,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369175277] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:16,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [949218595] [2024-11-27 06:23:16,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:16,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:16,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 1485 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 06:23:16,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:17,619 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 61 proven. 23 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2024-11-27 06:23:17,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [949218595] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:17,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:23:17,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 30 [2024-11-27 06:23:17,620 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:23:17,620 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 374 is hopeless, skipping. [2024-11-27 06:23:17,620 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 387 is hopeless, skipping. [2024-11-27 06:23:17,620 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 389 is hopeless, skipping. [2024-11-27 06:23:17,620 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 408 is hopeless, skipping. [2024-11-27 06:23:17,620 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 411 is hopeless, skipping. [2024-11-27 06:23:17,620 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 431 is hopeless, skipping. [2024-11-27 06:23:17,620 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 441 is hopeless, skipping. [2024-11-27 06:23:17,621 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 451 [2024-11-27 06:23:17,621 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:23:17,621 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 452 [2024-11-27 06:23:17,621 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:23:17,621 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:23:17,621 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:23:17,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:17,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1030749037, now seen corresponding path program 4 times [2024-11-27 06:23:17,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:23:17,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495334513] [2024-11-27 06:23:17,622 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:23:17,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:18,133 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:23:18,133 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:23:21,326 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 488 proven. 35 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-27 06:23:21,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:23:21,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495334513] [2024-11-27 06:23:21,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495334513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:21,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696353659] [2024-11-27 06:23:21,327 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:23:21,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:23:21,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:23:21,329 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:23:21,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 06:23:21,954 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:23:21,955 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:23:21,963 INFO L256 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 06:23:21,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:22,142 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2024-11-27 06:23:22,142 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 06:23:22,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696353659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:23:22,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 06:23:22,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [33] total 35 [2024-11-27 06:23:22,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217619478] [2024-11-27 06:23:22,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:23:22,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:23:22,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:23:22,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:23:22,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=893, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 06:23:22,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:23:22,144 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:23:22,145 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) [2024-11-27 06:23:22,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:22,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:22,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:22,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:22,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:23:22,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:22,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:23:22,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:23:22,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:23:22,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:23:22,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:23:22,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:23:22,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:22,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:22,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:22,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:22,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:23:22,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:22,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:23:22,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:23:22,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:23:22,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:23:22,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:23:22,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:22,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 06:23:23,016 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_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43,SelfDestructingSolverStorable54,SelfDestructingSolverStorable44,SelfDestructingSolverStorable55,SelfDestructingSolverStorable45,SelfDestructingSolverStorable56,SelfDestructingSolverStorable46,SelfDestructingSolverStorable57,SelfDestructingSolverStorable47,SelfDestructingSolverStorable58,SelfDestructingSolverStorable48,SelfDestructingSolverStorable59,SelfDestructingSolverStorable49 [2024-11-27 06:23:23,016 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:23:23,016 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:23:23,016 INFO L139 ounterexampleChecker]: Examining path program with hash 1166359728, occurence #1 [2024-11-27 06:23:23,016 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:23:23,016 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:23:23,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:23,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1264055873, now seen corresponding path program 5 times [2024-11-27 06:23:23,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:23:23,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177322124] [2024-11-27 06:23:23,017 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:23:23,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:23,093 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-27 06:23:23,093 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:23:23,512 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-27 06:23:23,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:23:23,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177322124] [2024-11-27 06:23:23,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177322124] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:23,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733985275] [2024-11-27 06:23:23,512 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:23:23,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:23:23,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:23:23,515 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:23:23,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 06:23:24,325 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-27 06:23:24,325 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:23:24,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 06:23:24,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:24,627 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-27 06:23:24,627 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:23:24,850 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-27 06:23:24,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733985275] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:23:24,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:23:24,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 29 [2024-11-27 06:23:24,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036614094] [2024-11-27 06:23:24,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:23:24,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-27 06:23:24,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:23:24,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-27 06:23:24,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=639, Unknown=0, NotChecked=0, Total=870 [2024-11-27 06:23:24,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:23:24,853 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:23:24,853 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) [2024-11-27 06:23:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:23:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:23:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:23:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:23:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:23:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:23:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:23:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:23:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:23:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:23:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:23:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:23:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:23:25,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:25,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 06:23:25,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 06:23:25,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:23:25,445 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)] === [2024-11-27 06:23:25,446 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:23:25,446 INFO L139 ounterexampleChecker]: Examining path program with hash 1166359728, occurence #2 [2024-11-27 06:23:25,446 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:23:25,446 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:23:25,446 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:23:25,446 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-27 06:23:25,446 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:23:25,446 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-27 06:23:25,446 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:23:25,446 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-27 06:23:25,446 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:23:25,446 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-11-27 06:23:25,446 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:23:25,446 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-27 06:23:25,446 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:23:25,446 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2024-11-27 06:23:25,446 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:23:25,446 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2024-11-27 06:23:25,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:25,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2109877223, now seen corresponding path program 1 times [2024-11-27 06:23:25,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:23:25,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924234374] [2024-11-27 06:23:25,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:25,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:25,638 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-27 06:23:25,638 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:23:25,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924234374] [2024-11-27 06:23:25,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924234374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:23:25,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:23:25,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 06:23:25,639 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 71. Constructing proof automaton... [2024-11-27 06:23:25,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:23:25,639 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-11-27 06:23:25,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 06:23:25,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2024-11-27 06:23:25,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:23:25,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 06:23:25,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:23:25,642 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:23:25,642 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) [2024-11-27 06:23:25,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:25,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:25,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:25,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:25,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:23:25,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:25,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:23:25,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:23:25,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:23:25,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:23:25,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:23:25,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:25,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-11-27 06:23:25,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:23:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:23:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:23:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:23:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:23:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:23:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:23:25,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:25,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 06:23:25,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:25,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-27 06:23:25,983 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)] === [2024-11-27 06:23:25,983 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:23:25,983 INFO L139 ounterexampleChecker]: Examining path program with hash -107339187, occurence #1 [2024-11-27 06:23:25,983 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:23:25,983 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:23:25,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:25,984 INFO L85 PathProgramCache]: Analyzing trace with hash -238730754, now seen corresponding path program 6 times [2024-11-27 06:23:25,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:23:25,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211136186] [2024-11-27 06:23:25,984 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 06:23:25,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:26,007 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-27 06:23:26,007 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:23:26,147 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-27 06:23:26,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:23:26,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211136186] [2024-11-27 06:23:26,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211136186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:23:26,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:23:26,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 06:23:26,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651348482] [2024-11-27 06:23:26,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:23:26,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 06:23:26,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:23:26,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 06:23:26,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 06:23:26,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:23:26,149 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:23:26,149 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) [2024-11-27 06:23:26,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:26,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:26,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:26,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:26,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:23:26,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:26,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:23:26,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:23:26,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:23:26,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:23:26,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:23:26,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:26,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-11-27 06:23:26,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:26,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:23:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:23:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:23:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:23:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:23:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:23:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:23:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 06:23:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:26,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:26,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-27 06:23:26,393 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)] === [2024-11-27 06:23:26,393 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:23:26,393 INFO L139 ounterexampleChecker]: Examining path program with hash 524195310, occurence #1 [2024-11-27 06:23:26,393 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:23:26,393 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:23:26,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:26,394 INFO L85 PathProgramCache]: Analyzing trace with hash 211777456, now seen corresponding path program 7 times [2024-11-27 06:23:26,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:23:26,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5928561] [2024-11-27 06:23:26,394 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 06:23:26,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:26,754 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-27 06:23:26,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:23:26,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5928561] [2024-11-27 06:23:26,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5928561] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:26,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509998631] [2024-11-27 06:23:26,754 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 06:23:26,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:23:26,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:23:26,756 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:23:26,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 06:23:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:27,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 06:23:27,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:27,372 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-27 06:23:27,372 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:23:27,829 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-27 06:23:27,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509998631] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:23:27,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:23:27,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35 [2024-11-27 06:23:27,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427057030] [2024-11-27 06:23:27,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:23:27,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-27 06:23:27,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:23:27,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-27 06:23:27,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=1050, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 06:23:27,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:23:27,831 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:23:27,831 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) [2024-11-27 06:23:27,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:27,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:27,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:27,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:27,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:23:27,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:27,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:23:27,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:23:27,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:23:27,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:23:27,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:23:27,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:27,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-11-27 06:23:27,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:27,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:27,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:23:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:23:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:23:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:23:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:23:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:23:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:23:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 06:23:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:30,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-27 06:23:30,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-27 06:23:30,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:23:30,932 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)] === [2024-11-27 06:23:30,932 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:23:30,933 INFO L139 ounterexampleChecker]: Examining path program with hash -907621450, occurence #1 [2024-11-27 06:23:30,933 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:23:30,933 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:23:30,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:30,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1562033500, now seen corresponding path program 8 times [2024-11-27 06:23:30,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:23:30,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393613876] [2024-11-27 06:23:30,934 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:23:30,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:31,619 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:23:31,620 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:23:33,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 15 proven. 84 refuted. 0 times theorem prover too weak. 1895 trivial. 0 not checked. [2024-11-27 06:23:33,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:23:33,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393613876] [2024-11-27 06:23:33,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393613876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:33,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987927659] [2024-11-27 06:23:33,729 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:23:33,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:23:33,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:23:33,731 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:23:33,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 06:23:34,415 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:23:34,415 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:23:34,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 06:23:34,432 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:35,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 914 proven. 25 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2024-11-27 06:23:35,093 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:23:35,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 883 proven. 56 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2024-11-27 06:23:35,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987927659] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:23:35,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:23:35,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 46 [2024-11-27 06:23:35,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645857342] [2024-11-27 06:23:35,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:23:35,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-27 06:23:35,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:23:35,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-27 06:23:35,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=1760, Unknown=0, NotChecked=0, Total=2070 [2024-11-27 06:23:35,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:23:35,834 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:23:35,835 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) [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-11-27 06:23:35,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:23:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:23:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:23:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:23:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:23:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:23:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:23:36,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:36,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 06:23:36,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:23:36,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:23:36,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-27 06:23:36,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-27 06:23:36,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 06:23:36,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2024-11-27 06:23:36,677 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)] === [2024-11-27 06:23:36,677 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:23:36,677 INFO L139 ounterexampleChecker]: Examining path program with hash -907621450, occurence #2 [2024-11-27 06:23:36,677 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:23:36,677 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:23:36,677 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:23:36,677 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-27 06:23:36,677 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:23:36,677 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-27 06:23:36,678 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:23:36,678 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-27 06:23:36,678 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:23:36,678 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-11-27 06:23:36,678 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:23:36,678 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-27 06:23:36,678 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:23:36,678 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 179 [2024-11-27 06:23:36,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:36,731 INFO L85 PathProgramCache]: Analyzing trace with hash -420979542, now seen corresponding path program 1 times [2024-11-27 06:23:36,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:23:36,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183177309] [2024-11-27 06:23:36,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:36,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:37,391 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 34 proven. 219 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-27 06:23:37,392 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:23:37,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183177309] [2024-11-27 06:23:37,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183177309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:37,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1006863145] [2024-11-27 06:23:37,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:37,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:37,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 06:23:37,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:38,193 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 211 proven. 42 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-27 06:23:38,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1006863145] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:38,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:23:38,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-11-27 06:23:38,194 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:23:38,194 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 184 [2024-11-27 06:23:38,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:38,309 INFO L85 PathProgramCache]: Analyzing trace with hash 138762978, now seen corresponding path program 1 times [2024-11-27 06:23:38,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:23:38,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351751434] [2024-11-27 06:23:38,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:38,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:39,050 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 49 proven. 205 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-27 06:23:39,050 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:23:39,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351751434] [2024-11-27 06:23:39,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351751434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:39,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1556184807] [2024-11-27 06:23:39,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:39,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:39,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 06:23:39,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:39,767 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 226 proven. 28 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-27 06:23:39,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1556184807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:39,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:23:39,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2024-11-27 06:23:39,768 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:23:39,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 289 [2024-11-27 06:23:39,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:39,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2095327473, now seen corresponding path program 1 times [2024-11-27 06:23:39,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:23:39,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749861715] [2024-11-27 06:23:39,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:39,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 810 proven. 179 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-27 06:23:41,471 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:23:41,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749861715] [2024-11-27 06:23:41,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749861715] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:41,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [114861964] [2024-11-27 06:23:41,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:41,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:41,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-27 06:23:41,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:43,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 960 proven. 28 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-27 06:23:43,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [114861964] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:43,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:23:43,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27] total 52 [2024-11-27 06:23:43,235 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:23:43,236 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 388 [2024-11-27 06:23:43,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:43,295 INFO L85 PathProgramCache]: Analyzing trace with hash 250480672, now seen corresponding path program 1 times [2024-11-27 06:23:43,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:23:43,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915508812] [2024-11-27 06:23:43,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:43,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:44,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1589 backedges. 825 proven. 164 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2024-11-27 06:23:44,880 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:23:44,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915508812] [2024-11-27 06:23:44,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915508812] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:44,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [589958387] [2024-11-27 06:23:44,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:44,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:45,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 06:23:45,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:45,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1589 backedges. 877 proven. 112 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2024-11-27 06:23:45,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [589958387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:45,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:23:45,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-11-27 06:23:45,929 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:23:45,929 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 407 is hopeless, skipping. [2024-11-27 06:23:45,930 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 410 is hopeless, skipping. [2024-11-27 06:23:45,930 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 413 is hopeless, skipping. [2024-11-27 06:23:45,930 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 435 is hopeless, skipping. [2024-11-27 06:23:45,930 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 436 [2024-11-27 06:23:45,930 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:23:45,930 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 438 is hopeless, skipping. [2024-11-27 06:23:45,930 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 465 is hopeless, skipping. [2024-11-27 06:23:45,930 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 478 is hopeless, skipping. [2024-11-27 06:23:45,930 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 480 [2024-11-27 06:23:45,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:45,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1151297665, now seen corresponding path program 1 times [2024-11-27 06:23:45,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:23:45,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475431164] [2024-11-27 06:23:45,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:45,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:47,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1872 backedges. 891 proven. 164 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2024-11-27 06:23:47,978 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:23:47,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475431164] [2024-11-27 06:23:47,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475431164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:47,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [680019248] [2024-11-27 06:23:47,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:47,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:48,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 06:23:48,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:49,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1872 backedges. 943 proven. 112 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2024-11-27 06:23:49,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [680019248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:49,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:23:49,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-11-27 06:23:49,234 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:23:49,234 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 507 is hopeless, skipping. [2024-11-27 06:23:49,234 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 524 is hopeless, skipping. [2024-11-27 06:23:49,234 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 537 is hopeless, skipping. [2024-11-27 06:23:49,234 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 549 is hopeless, skipping. [2024-11-27 06:23:49,234 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 551 is hopeless, skipping. [2024-11-27 06:23:49,235 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 578 is hopeless, skipping. [2024-11-27 06:23:49,235 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 592 [2024-11-27 06:23:49,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:49,326 INFO L85 PathProgramCache]: Analyzing trace with hash 89798172, now seen corresponding path program 1 times [2024-11-27 06:23:49,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:23:49,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940674107] [2024-11-27 06:23:49,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:49,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:52,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2008 backedges. 906 proven. 164 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2024-11-27 06:23:52,320 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:23:52,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940674107] [2024-11-27 06:23:52,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940674107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:52,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1913693069] [2024-11-27 06:23:52,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:23:52,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:23:52,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 2388 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 06:23:52,921 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:23:53,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2008 backedges. 958 proven. 112 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2024-11-27 06:23:53,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1913693069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:53,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:23:53,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-11-27 06:23:53,631 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:23:53,631 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 602 is hopeless, skipping. [2024-11-27 06:23:53,631 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 611 [2024-11-27 06:23:53,631 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:23:53,631 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 613 [2024-11-27 06:23:53,631 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:23:53,631 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:23:53,631 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:23:53,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:23:53,632 INFO L85 PathProgramCache]: Analyzing trace with hash 657960230, now seen corresponding path program 9 times [2024-11-27 06:23:53,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:23:53,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911191684] [2024-11-27 06:23:53,632 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:23:53,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:23:56,705 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 06:23:56,705 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:23:59,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2008 backedges. 232 proven. 754 refuted. 0 times theorem prover too weak. 1022 trivial. 0 not checked. [2024-11-27 06:23:59,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:23:59,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911191684] [2024-11-27 06:23:59,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911191684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:23:59,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786302212] [2024-11-27 06:23:59,571 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:23:59,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:23:59,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:23:59,573 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:23:59,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 06:24:03,043 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 06:24:03,043 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:24:03,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 1803 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 06:24:03,061 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:24:04,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2008 backedges. 78 proven. 28 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-11-27 06:24:04,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:24:06,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2008 backedges. 42 proven. 64 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-11-27 06:24:06,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786302212] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:24:06,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:24:06,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 21, 21] total 74 [2024-11-27 06:24:06,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819361572] [2024-11-27 06:24:06,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:24:06,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-11-27 06:24:06,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:24:06,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-11-27 06:24:06,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1085, Invalid=4465, Unknown=0, NotChecked=0, Total=5550 [2024-11-27 06:24:06,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:24:06,693 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:24:06,694 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) [2024-11-27 06:24:06,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:06,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:06,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:24:06,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:06,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:24:06,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:06,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:24:06,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:24:06,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:24:06,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:24:06,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:24:06,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:06,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-11-27 06:24:06,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:06,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:24:06,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-11-27 06:24:06,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-11-27 06:24:06,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:24:08,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:08,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:08,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:24:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:24:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:24:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:24:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:24:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:24:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:24:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 06:24:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:24:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-27 06:24:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-27 06:24:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 06:24:08,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 06:24:08,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,SelfDestructingSolverStorable71,SelfDestructingSolverStorable72,SelfDestructingSolverStorable73,SelfDestructingSolverStorable74,SelfDestructingSolverStorable75,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65,SelfDestructingSolverStorable76,SelfDestructingSolverStorable66,SelfDestructingSolverStorable77,SelfDestructingSolverStorable67,SelfDestructingSolverStorable68,SelfDestructingSolverStorable69 [2024-11-27 06:24:08,413 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)] === [2024-11-27 06:24:08,413 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:24:08,414 INFO L139 ounterexampleChecker]: Examining path program with hash -907621450, occurence #3 [2024-11-27 06:24:08,414 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:24:08,414 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:24:08,414 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:24:08,414 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-27 06:24:08,414 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:24:08,414 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-27 06:24:08,414 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:24:08,414 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-11-27 06:24:08,414 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:24:08,415 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-27 06:24:08,415 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:24:08,415 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2024-11-27 06:24:08,415 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:24:08,415 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 181 [2024-11-27 06:24:08,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:24:08,485 INFO L85 PathProgramCache]: Analyzing trace with hash 886395648, now seen corresponding path program 1 times [2024-11-27 06:24:08,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:24:08,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42709451] [2024-11-27 06:24:08,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:08,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:09,390 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 34 proven. 219 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-27 06:24:09,391 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:24:09,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42709451] [2024-11-27 06:24:09,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42709451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:09,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [306851344] [2024-11-27 06:24:09,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:09,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:09,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 06:24:09,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:24:10,086 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 211 proven. 42 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-27 06:24:10,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [306851344] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:10,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:24:10,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-11-27 06:24:10,086 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:24:10,087 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 186 [2024-11-27 06:24:10,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:24:10,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1019720520, now seen corresponding path program 1 times [2024-11-27 06:24:10,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:24:10,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163282642] [2024-11-27 06:24:10,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:10,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:10,862 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 49 proven. 205 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-27 06:24:10,862 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:24:10,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163282642] [2024-11-27 06:24:10,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163282642] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:10,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1170986084] [2024-11-27 06:24:10,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:10,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:10,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 06:24:10,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:24:11,580 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 226 proven. 28 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-27 06:24:11,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1170986084] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:11,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:24:11,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2024-11-27 06:24:11,581 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:24:11,581 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 291 [2024-11-27 06:24:11,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:24:11,664 INFO L85 PathProgramCache]: Analyzing trace with hash 969551687, now seen corresponding path program 1 times [2024-11-27 06:24:11,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:24:11,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662108311] [2024-11-27 06:24:11,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:11,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:11,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:13,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 810 proven. 179 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-27 06:24:13,293 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:24:13,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662108311] [2024-11-27 06:24:13,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662108311] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:13,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1269351907] [2024-11-27 06:24:13,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:13,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:13,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 1285 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-27 06:24:13,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:24:14,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 960 proven. 28 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-27 06:24:14,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1269351907] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:14,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:24:14,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27] total 52 [2024-11-27 06:24:14,946 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:24:14,947 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 390 [2024-11-27 06:24:14,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:24:14,989 INFO L85 PathProgramCache]: Analyzing trace with hash 402282998, now seen corresponding path program 1 times [2024-11-27 06:24:14,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:24:14,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511882577] [2024-11-27 06:24:14,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:14,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:16,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1606 backedges. 51 proven. 646 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2024-11-27 06:24:16,964 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:24:16,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511882577] [2024-11-27 06:24:16,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511882577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:16,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [2079036475] [2024-11-27 06:24:16,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:16,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:17,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 06:24:17,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:24:18,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1606 backedges. 624 proven. 73 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2024-11-27 06:24:18,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [2079036475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:18,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:24:18,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2024-11-27 06:24:18,359 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:24:18,359 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 409 is hopeless, skipping. [2024-11-27 06:24:18,359 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 412 is hopeless, skipping. [2024-11-27 06:24:18,359 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 415 is hopeless, skipping. [2024-11-27 06:24:18,360 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 437 is hopeless, skipping. [2024-11-27 06:24:18,360 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 438 [2024-11-27 06:24:18,360 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:24:18,360 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 440 is hopeless, skipping. [2024-11-27 06:24:18,360 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 467 is hopeless, skipping. [2024-11-27 06:24:18,360 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 480 is hopeless, skipping. [2024-11-27 06:24:18,360 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 482 [2024-11-27 06:24:18,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:24:18,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1670014377, now seen corresponding path program 1 times [2024-11-27 06:24:18,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:24:18,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365325843] [2024-11-27 06:24:18,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:18,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:20,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1889 backedges. 63 proven. 604 refuted. 0 times theorem prover too weak. 1222 trivial. 0 not checked. [2024-11-27 06:24:20,680 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:24:20,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365325843] [2024-11-27 06:24:20,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365325843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:20,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [370918138] [2024-11-27 06:24:20,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:20,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:21,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 1967 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 06:24:21,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:24:22,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1889 backedges. 594 proven. 73 refuted. 0 times theorem prover too weak. 1222 trivial. 0 not checked. [2024-11-27 06:24:22,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [370918138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:22,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:24:22,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 40 [2024-11-27 06:24:22,388 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:24:22,388 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 509 is hopeless, skipping. [2024-11-27 06:24:22,389 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 526 is hopeless, skipping. [2024-11-27 06:24:22,389 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 539 is hopeless, skipping. [2024-11-27 06:24:22,389 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 551 is hopeless, skipping. [2024-11-27 06:24:22,389 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 553 is hopeless, skipping. [2024-11-27 06:24:22,389 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 580 is hopeless, skipping. [2024-11-27 06:24:22,389 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 594 [2024-11-27 06:24:22,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:24:22,440 INFO L85 PathProgramCache]: Analyzing trace with hash 812640242, now seen corresponding path program 1 times [2024-11-27 06:24:22,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:24:22,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705053670] [2024-11-27 06:24:22,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:22,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:25,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 50 proven. 512 refuted. 0 times theorem prover too weak. 1463 trivial. 0 not checked. [2024-11-27 06:24:25,137 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:24:25,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705053670] [2024-11-27 06:24:25,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705053670] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:25,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [764044527] [2024-11-27 06:24:25,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:25,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:25,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 2406 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 06:24:25,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:24:27,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 513 proven. 49 refuted. 0 times theorem prover too weak. 1463 trivial. 0 not checked. [2024-11-27 06:24:27,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [764044527] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:27,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:24:27,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 40 [2024-11-27 06:24:27,388 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:24:27,389 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 604 is hopeless, skipping. [2024-11-27 06:24:27,389 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 613 [2024-11-27 06:24:27,389 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:24:27,389 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 615 [2024-11-27 06:24:27,389 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:24:27,389 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:24:27,389 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:24:27,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:24:27,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1800040730, now seen corresponding path program 10 times [2024-11-27 06:24:27,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:24:27,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910186741] [2024-11-27 06:24:27,390 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:24:27,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:28,004 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:24:28,004 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:24:32,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 1819 proven. 73 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-11-27 06:24:32,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:24:32,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910186741] [2024-11-27 06:24:32,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910186741] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:32,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961437152] [2024-11-27 06:24:32,446 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:24:32,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:24:32,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:24:32,448 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:24:32,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 06:24:33,215 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:24:33,215 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:24:33,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 2508 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-27 06:24:33,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:24:37,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 1879 proven. 43 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-27 06:24:37,573 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:24:41,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 1804 proven. 118 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-27 06:24:41,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961437152] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:24:41,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:24:41,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 49, 49] total 138 [2024-11-27 06:24:41,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651761835] [2024-11-27 06:24:41,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:24:41,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 138 states [2024-11-27 06:24:41,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:24:41,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2024-11-27 06:24:41,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4048, Invalid=14858, Unknown=0, NotChecked=0, Total=18906 [2024-11-27 06:24:41,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:24:41,763 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:24:41,764 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) [2024-11-27 06:24:41,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:41,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:41,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:24:41,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:41,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:24:41,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:41,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:24:41,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:24:41,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:24:41,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:24:41,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:24:41,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:41,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-11-27 06:24:41,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:41,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:24:41,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-11-27 06:24:41,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-11-27 06:24:41,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-27 06:24:41,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:24:42,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 06:24:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-27 06:24:42,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 06:24:42,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable80,SelfDestructingSolverStorable81,SelfDestructingSolverStorable82,SelfDestructingSolverStorable83,SelfDestructingSolverStorable84,SelfDestructingSolverStorable85,SelfDestructingSolverStorable86,SelfDestructingSolverStorable87,SelfDestructingSolverStorable88,SelfDestructingSolverStorable78,SelfDestructingSolverStorable89,SelfDestructingSolverStorable79 [2024-11-27 06:24:42,588 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)] === [2024-11-27 06:24:42,588 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:24:42,589 INFO L139 ounterexampleChecker]: Examining path program with hash -907621450, occurence #4 [2024-11-27 06:24:42,589 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:24:42,589 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:24:42,589 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:24:42,589 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-11-27 06:24:42,589 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:24:42,589 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-27 06:24:42,589 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:24:42,589 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-27 06:24:42,589 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:24:42,590 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-11-27 06:24:42,590 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:24:42,590 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2024-11-27 06:24:42,590 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:24:42,590 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 191 [2024-11-27 06:24:42,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:24:42,643 INFO L85 PathProgramCache]: Analyzing trace with hash 387620500, now seen corresponding path program 1 times [2024-11-27 06:24:42,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:24:42,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467639886] [2024-11-27 06:24:42,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:42,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:43,433 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 313 proven. 55 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-27 06:24:43,433 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:24:43,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467639886] [2024-11-27 06:24:43,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467639886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:43,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1097827177] [2024-11-27 06:24:43,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:43,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:43,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 06:24:43,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:24:44,401 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 353 proven. 15 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-27 06:24:44,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1097827177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:44,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:24:44,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 38 [2024-11-27 06:24:44,401 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:24:44,401 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 196 [2024-11-27 06:24:44,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:24:44,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1566565000, now seen corresponding path program 1 times [2024-11-27 06:24:44,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:24:44,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787374674] [2024-11-27 06:24:44,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:44,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:45,823 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 306 proven. 55 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-11-27 06:24:45,823 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:24:45,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787374674] [2024-11-27 06:24:45,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787374674] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:45,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [899400852] [2024-11-27 06:24:45,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:45,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:45,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 06:24:45,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:24:46,710 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 327 proven. 41 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-27 06:24:46,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [899400852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:46,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:24:46,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 35 [2024-11-27 06:24:46,710 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:24:46,710 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 301 [2024-11-27 06:24:46,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:24:46,794 INFO L85 PathProgramCache]: Analyzing trace with hash 810194779, now seen corresponding path program 1 times [2024-11-27 06:24:46,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:24:46,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298848851] [2024-11-27 06:24:46,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:46,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:48,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 126 proven. 605 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2024-11-27 06:24:48,493 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:24:48,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298848851] [2024-11-27 06:24:48,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298848851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:48,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1989989198] [2024-11-27 06:24:48,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:48,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:48,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 1375 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 06:24:48,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:24:50,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 635 proven. 96 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2024-11-27 06:24:50,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1989989198] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:50,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:24:50,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 44 [2024-11-27 06:24:50,004 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:24:50,005 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 400 [2024-11-27 06:24:50,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:24:50,053 INFO L85 PathProgramCache]: Analyzing trace with hash 817525446, now seen corresponding path program 1 times [2024-11-27 06:24:50,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:24:50,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911503886] [2024-11-27 06:24:50,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:50,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:52,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1724 backedges. 68 proven. 691 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2024-11-27 06:24:52,527 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:24:52,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911503886] [2024-11-27 06:24:52,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911503886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:52,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [561186453] [2024-11-27 06:24:52,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:52,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:52,963 INFO L256 TraceCheckSpWp]: Trace formula consists of 1732 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 06:24:52,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:24:54,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1724 backedges. 675 proven. 84 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2024-11-27 06:24:54,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [561186453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:54,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:24:54,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2024-11-27 06:24:54,705 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:24:54,705 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 419 is hopeless, skipping. [2024-11-27 06:24:54,705 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 422 is hopeless, skipping. [2024-11-27 06:24:54,705 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 425 is hopeless, skipping. [2024-11-27 06:24:54,705 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 447 is hopeless, skipping. [2024-11-27 06:24:54,705 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 448 [2024-11-27 06:24:54,705 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:24:54,705 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 450 is hopeless, skipping. [2024-11-27 06:24:54,705 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 477 is hopeless, skipping. [2024-11-27 06:24:54,705 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 490 is hopeless, skipping. [2024-11-27 06:24:54,705 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 492 [2024-11-27 06:24:54,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:24:54,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1693427161, now seen corresponding path program 1 times [2024-11-27 06:24:54,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:24:54,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581978296] [2024-11-27 06:24:54,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:54,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:57,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2007 backedges. 84 proven. 695 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2024-11-27 06:24:57,900 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:24:57,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581978296] [2024-11-27 06:24:57,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581978296] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:24:57,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1953707486] [2024-11-27 06:24:57,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:24:57,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:24:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:24:58,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 2057 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 06:24:58,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:25:00,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2007 backedges. 696 proven. 83 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2024-11-27 06:25:00,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1953707486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:00,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:25:00,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 44 [2024-11-27 06:25:00,010 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:25:00,010 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 519 is hopeless, skipping. [2024-11-27 06:25:00,010 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 536 is hopeless, skipping. [2024-11-27 06:25:00,011 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 549 is hopeless, skipping. [2024-11-27 06:25:00,011 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 561 is hopeless, skipping. [2024-11-27 06:25:00,011 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 563 is hopeless, skipping. [2024-11-27 06:25:00,011 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 590 is hopeless, skipping. [2024-11-27 06:25:00,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 604 [2024-11-27 06:25:00,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:25:00,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1957428286, now seen corresponding path program 1 times [2024-11-27 06:25:00,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:25:00,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414726510] [2024-11-27 06:25:00,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:00,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:03,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2143 backedges. 62 proven. 533 refuted. 0 times theorem prover too weak. 1548 trivial. 0 not checked. [2024-11-27 06:25:03,781 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:25:03,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414726510] [2024-11-27 06:25:03,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414726510] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:03,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [253808245] [2024-11-27 06:25:03,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:25:03,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:25:04,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 2496 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 06:25:04,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:25:06,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2143 backedges. 536 proven. 59 refuted. 0 times theorem prover too weak. 1548 trivial. 0 not checked. [2024-11-27 06:25:06,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [253808245] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:06,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:25:06,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 44 [2024-11-27 06:25:06,611 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:25:06,611 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 614 is hopeless, skipping. [2024-11-27 06:25:06,611 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 623 [2024-11-27 06:25:06,611 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:25:06,611 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 625 [2024-11-27 06:25:06,611 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:25:06,611 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:25:06,611 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:25:06,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:25:06,612 INFO L85 PathProgramCache]: Analyzing trace with hash 949168164, now seen corresponding path program 11 times [2024-11-27 06:25:06,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:25:06,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164304533] [2024-11-27 06:25:06,612 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:25:06,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:25:14,927 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-11-27 06:25:14,927 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:25:20,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2143 backedges. 262 proven. 329 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2024-11-27 06:25:20,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:25:20,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164304533] [2024-11-27 06:25:20,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164304533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:25:20,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920422337] [2024-11-27 06:25:20,794 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:25:20,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:25:20,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:25:20,798 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:25:20,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9663fc-70a6-4c31-8b76-d4e7a4d6d25b/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process