./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 670814d0a16da58b0f26835e20c05a244e2f373856f13b9d4ff2a931783edf81 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 11:32:52,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 11:32:52,208 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-23 11:32:52,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 11:32:52,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 11:32:52,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 11:32:52,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 11:32:52,250 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 11:32:52,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 11:32:52,251 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 11:32:52,252 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 11:32:52,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 11:32:52,253 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 11:32:52,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 11:32:52,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 11:32:52,253 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 11:32:52,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 11:32:52,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 11:32:52,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 11:32:52,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 11:32:52,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 11:32:52,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 11:32:52,255 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 11:32:52,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 11:32:52,255 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 11:32:52,256 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 11:32:52,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 11:32:52,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 11:32:52,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 11:32:52,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 11:32:52,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:32:52,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 11:32:52,256 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 11:32:52,257 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 11:32:52,257 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-23 11:32:52,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 11:32:52,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 11:32:52,258 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-23 11:32:52,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 11:32:52,258 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 11:32:52,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-23 11:32:52,258 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-23 11:32:52,258 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-23 11:32:52,259 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_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 670814d0a16da58b0f26835e20c05a244e2f373856f13b9d4ff2a931783edf81 [2024-11-23 11:32:52,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 11:32:52,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 11:32:52,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 11:32:52,604 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 11:32:52,604 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 11:32:52,605 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2024-11-23 11:32:55,503 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/data/43ba81bd3/c648d8cdf1574994b9b485257c2797f6/FLAGa58d3e4ae [2024-11-23 11:32:55,815 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 11:32:55,816 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2024-11-23 11:32:55,829 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/data/43ba81bd3/c648d8cdf1574994b9b485257c2797f6/FLAGa58d3e4ae [2024-11-23 11:32:56,070 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/data/43ba81bd3/c648d8cdf1574994b9b485257c2797f6 [2024-11-23 11:32:56,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 11:32:56,075 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 11:32:56,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 11:32:56,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 11:32:56,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 11:32:56,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:32:56" (1/1) ... [2024-11-23 11:32:56,084 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536964a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:56, skipping insertion in model container [2024-11-23 11:32:56,084 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:32:56" (1/1) ... [2024-11-23 11:32:56,107 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 11:32:56,328 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_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c[2862,2875] [2024-11-23 11:32:56,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:32:56,354 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 11:32:56,394 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_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c[2862,2875] [2024-11-23 11:32:56,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:32:56,414 INFO L204 MainTranslator]: Completed translation [2024-11-23 11:32:56,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:56 WrapperNode [2024-11-23 11:32:56,415 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 11:32:56,416 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 11:32:56,416 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 11:32:56,416 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 11:32:56,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:56" (1/1) ... [2024-11-23 11:32:56,433 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:56" (1/1) ... [2024-11-23 11:32:56,471 INFO L138 Inliner]: procedures = 25, calls = 42, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 218 [2024-11-23 11:32:56,475 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 11:32:56,476 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 11:32:56,476 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 11:32:56,476 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 11:32:56,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:56" (1/1) ... [2024-11-23 11:32:56,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:56" (1/1) ... [2024-11-23 11:32:56,494 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:56" (1/1) ... [2024-11-23 11:32:56,494 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:56" (1/1) ... [2024-11-23 11:32:56,510 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:56" (1/1) ... [2024-11-23 11:32:56,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:56" (1/1) ... [2024-11-23 11:32:56,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:56" (1/1) ... [2024-11-23 11:32:56,524 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:56" (1/1) ... [2024-11-23 11:32:56,529 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:56" (1/1) ... [2024-11-23 11:32:56,531 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 11:32:56,535 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 11:32:56,536 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 11:32:56,536 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 11:32:56,536 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:56" (1/1) ... [2024-11-23 11:32:56,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:32:56,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:32:56,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-23 11:32:56,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-23 11:32:56,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 11:32:56,611 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-23 11:32:56,611 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-23 11:32:56,611 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-23 11:32:56,611 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-23 11:32:56,611 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-23 11:32:56,611 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-23 11:32:56,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 11:32:56,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 11:32:56,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-23 11:32:56,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-23 11:32:56,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 11:32:56,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 11:32:56,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 11:32:56,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 11:32:56,614 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 11:32:56,753 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 11:32:56,755 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 11:32:57,288 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 11:32:57,293 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 11:32:57,850 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 11:32:57,850 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-23 11:32:57,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:32:57 BoogieIcfgContainer [2024-11-23 11:32:57,853 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 11:32:57,856 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 11:32:57,856 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 11:32:57,862 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 11:32:57,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:32:56" (1/3) ... [2024-11-23 11:32:57,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c5b08cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:32:57, skipping insertion in model container [2024-11-23 11:32:57,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:56" (2/3) ... [2024-11-23 11:32:57,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c5b08cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:32:57, skipping insertion in model container [2024-11-23 11:32:57,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:32:57" (3/3) ... [2024-11-23 11:32:57,865 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-three-array-max.wvr.c [2024-11-23 11:32:57,883 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 11:32:57,886 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-three-array-max.wvr.c that has 4 procedures, 33 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-11-23 11:32:57,886 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 11:32:57,975 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-23 11:32:58,058 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:32:58,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-23 11:32:58,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:32:58,062 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-23 11:32:58,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-23 11:32:58,168 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-23 11:32:58,186 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-23 11:32:58,197 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;@6fbb86f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:32:58,197 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-23 11:32:59,293 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 1 more)] === [2024-11-23 11:32:59,294 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:32:59,294 INFO L139 ounterexampleChecker]: Examining path program with hash 445860844, occurence #1 [2024-11-23 11:32:59,294 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:32:59,294 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:32:59,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:32:59,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1191580267, now seen corresponding path program 1 times [2024-11-23 11:32:59,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:32:59,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088436413] [2024-11-23 11:32:59,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:32:59,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:32:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:32:59,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:32:59,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:32:59,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088436413] [2024-11-23 11:32:59,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088436413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:32:59,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:32:59,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 11:32:59,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258485539] [2024-11-23 11:32:59,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:32:59,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 11:32:59,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:32:59,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 11:32:59,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 11:32:59,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:32:59,978 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:32:59,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:32:59,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:00,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:00,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 11:33:00,107 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 1 more)] === [2024-11-23 11:33:00,108 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:00,108 INFO L139 ounterexampleChecker]: Examining path program with hash 445860844, occurence #2 [2024-11-23 11:33:00,108 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:33:00,108 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:33:00,109 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:00,109 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-23 11:33:00,109 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:00,109 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-11-23 11:33:00,109 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:00,109 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-23 11:33:00,128 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:00,129 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-23 11:33:00,129 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:00,129 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-11-23 11:33:00,130 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:00,130 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-23 11:33:00,130 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:00,130 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-23 11:33:00,130 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:00,130 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:33:00,131 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:00,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:00,132 INFO L85 PathProgramCache]: Analyzing trace with hash 2047064655, now seen corresponding path program 1 times [2024-11-23 11:33:00,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:00,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564671419] [2024-11-23 11:33:00,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:33:00,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:33:00,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:33:00,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:00,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564671419] [2024-11-23 11:33:00,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564671419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:33:00,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:33:00,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 11:33:00,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361468817] [2024-11-23 11:33:00,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:33:00,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 11:33:00,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:00,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 11:33:00,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 11:33:00,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:00,463 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:00,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:33:00,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:00,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:00,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:00,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:00,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 11:33:00,595 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 1 more)] === [2024-11-23 11:33:00,595 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:00,595 INFO L139 ounterexampleChecker]: Examining path program with hash 445860844, occurence #3 [2024-11-23 11:33:00,595 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:33:00,595 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:33:00,595 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:00,596 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-23 11:33:00,596 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:00,596 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-23 11:33:00,596 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:00,596 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-23 11:33:00,596 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:00,596 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-23 11:33:00,597 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:00,597 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-23 11:33:00,597 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:00,597 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-23 11:33:00,597 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:00,597 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-23 11:33:00,597 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:00,597 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:33:00,597 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:00,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:00,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1696621244, now seen corresponding path program 1 times [2024-11-23 11:33:00,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:00,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661596611] [2024-11-23 11:33:00,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:33:00,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:33:00,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 11:33:00,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:00,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661596611] [2024-11-23 11:33:00,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661596611] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:33:00,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537446765] [2024-11-23 11:33:00,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:33:00,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:00,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:00,963 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:33:00,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 11:33:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:33:01,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 11:33:01,135 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:33:01,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 11:33:01,290 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:33:01,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 11:33:01,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537446765] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:33:01,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:33:01,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-23 11:33:01,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959163313] [2024-11-23 11:33:01,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:33:01,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 11:33:01,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:01,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 11:33:01,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-23 11:33:01,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:01,398 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:01,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:33:01,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:01,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:01,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:01,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:01,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:01,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:01,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 11:33:01,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:01,802 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 1 more)] === [2024-11-23 11:33:01,802 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:01,802 INFO L139 ounterexampleChecker]: Examining path program with hash 445860844, occurence #4 [2024-11-23 11:33:01,802 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:33:01,803 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:33:01,803 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:01,803 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-11-23 11:33:01,803 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:01,803 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-23 11:33:01,803 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:01,803 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-23 11:33:01,803 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:01,803 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-23 11:33:01,803 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:01,803 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-23 11:33:01,803 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:01,804 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-23 11:33:01,804 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:01,804 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-23 11:33:01,804 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:01,804 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:33:01,804 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:01,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:01,804 INFO L85 PathProgramCache]: Analyzing trace with hash -236802101, now seen corresponding path program 2 times [2024-11-23 11:33:01,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:01,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002817843] [2024-11-23 11:33:01,805 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:33:01,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:01,845 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 11:33:01,846 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:01,964 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 11:33:01,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:01,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002817843] [2024-11-23 11:33:01,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002817843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:33:01,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:33:01,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 11:33:01,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73174905] [2024-11-23 11:33:01,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:33:01,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 11:33:01,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:01,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 11:33:01,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 11:33:01,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:01,967 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:01,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:33:01,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:01,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:01,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:01,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:02,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:02,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:02,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:02,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:02,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 11:33:02,105 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 1 more)] === [2024-11-23 11:33:02,105 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:02,105 INFO L139 ounterexampleChecker]: Examining path program with hash -2048645503, occurence #1 [2024-11-23 11:33:02,106 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:33:02,106 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:02,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:02,106 INFO L85 PathProgramCache]: Analyzing trace with hash 610782456, now seen corresponding path program 1 times [2024-11-23 11:33:02,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:02,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086360687] [2024-11-23 11:33:02,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:33:02,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:33:02,381 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 11:33:02,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:02,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086360687] [2024-11-23 11:33:02,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086360687] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:33:02,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149258884] [2024-11-23 11:33:02,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:33:02,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:02,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:02,384 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:33:02,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 11:33:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:33:02,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 11:33:02,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:33:02,632 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 11:33:02,632 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:33:02,734 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 11:33:02,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149258884] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 11:33:02,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:33:02,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2024-11-23 11:33:02,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334432512] [2024-11-23 11:33:02,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:33:02,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 11:33:02,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:02,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 11:33:02,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-23 11:33:02,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:02,739 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:02,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:33:02,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:02,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:02,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:02,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:02,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:03,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:03,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 11:33:03,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:03,359 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 1 more)] === [2024-11-23 11:33:03,359 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:03,360 INFO L139 ounterexampleChecker]: Examining path program with hash -960192901, occurence #1 [2024-11-23 11:33:03,360 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:33:03,360 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:03,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:03,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2074818213, now seen corresponding path program 1 times [2024-11-23 11:33:03,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:03,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742329726] [2024-11-23 11:33:03,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:33:03,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:33:03,765 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 11:33:03,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:03,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742329726] [2024-11-23 11:33:03,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742329726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:33:03,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214755707] [2024-11-23 11:33:03,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:33:03,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:03,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:03,769 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:33:03,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 11:33:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:33:03,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 11:33:03,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:33:04,113 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 11:33:04,113 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:33:04,260 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 11:33:04,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214755707] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:33:04,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:33:04,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2024-11-23 11:33:04,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059623606] [2024-11-23 11:33:04,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:33:04,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 11:33:04,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:04,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 11:33:04,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-23 11:33:04,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:04,263 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:04,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 16 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) [2024-11-23 11:33:04,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:04,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:04,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:04,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:04,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:04,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:04,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:04,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:04,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:04,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:04,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:04,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:04,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 11:33:04,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-23 11:33:04,697 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 1 more)] === [2024-11-23 11:33:04,697 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:04,698 INFO L139 ounterexampleChecker]: Examining path program with hash -960192901, occurence #2 [2024-11-23 11:33:04,698 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:33:04,698 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:33:04,698 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:04,698 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-23 11:33:04,698 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:04,698 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-23 11:33:04,698 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:04,698 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-23 11:33:04,698 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:04,698 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-23 11:33:04,698 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:04,698 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-23 11:33:04,698 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:04,699 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-11-23 11:33:04,699 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:04,699 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-23 11:33:04,699 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:04,699 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2024-11-23 11:33:04,699 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:04,699 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:33:04,699 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:04,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:04,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1459669502, now seen corresponding path program 2 times [2024-11-23 11:33:04,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:04,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3345345] [2024-11-23 11:33:04,700 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:33:04,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:04,796 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:33:04,796 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 11:33:05,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:05,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3345345] [2024-11-23 11:33:05,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3345345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:33:05,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228601808] [2024-11-23 11:33:05,074 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:33:05,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:05,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:05,076 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:33:05,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 11:33:05,228 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:33:05,228 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:05,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 11:33:05,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:33:05,409 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 11:33:05,410 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:33:05,564 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 11:33:05,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228601808] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:33:05,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:33:05,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2024-11-23 11:33:05,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418437558] [2024-11-23 11:33:05,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:33:05,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 11:33:05,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:05,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 11:33:05,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2024-11-23 11:33:05,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:05,570 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:05,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 16 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:33:05,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:05,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:05,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:05,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:05,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:05,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:05,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:06,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:06,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:06,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:06,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:06,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:06,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:06,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:06,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 11:33:06,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-23 11:33:06,335 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 1 more)] === [2024-11-23 11:33:06,335 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:06,335 INFO L139 ounterexampleChecker]: Examining path program with hash -960192901, occurence #3 [2024-11-23 11:33:06,336 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:33:06,336 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:33:06,336 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:06,336 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-23 11:33:06,336 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:06,336 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-23 11:33:06,336 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:06,336 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-23 11:33:06,336 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:06,336 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-23 11:33:06,336 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:06,336 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-23 11:33:06,336 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:06,336 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-11-23 11:33:06,336 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:06,337 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-11-23 11:33:06,337 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:06,337 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2024-11-23 11:33:06,337 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:06,337 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2024-11-23 11:33:06,337 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:06,337 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:33:06,337 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:06,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:06,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1996516632, now seen corresponding path program 3 times [2024-11-23 11:33:06,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:06,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532258963] [2024-11-23 11:33:06,338 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:33:06,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:06,429 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-23 11:33:06,429 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:06,762 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-23 11:33:06,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:06,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532258963] [2024-11-23 11:33:06,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532258963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:33:06,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:33:06,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 11:33:06,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527140952] [2024-11-23 11:33:06,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:33:06,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 11:33:06,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:06,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 11:33:06,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 11:33:06,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:06,766 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:06,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 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) [2024-11-23 11:33:06,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:06,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:06,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:06,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:06,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:06,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:06,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:06,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:07,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:07,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:07,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:07,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:07,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:07,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:07,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:07,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:33:07,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 11:33:07,470 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 1 more)] === [2024-11-23 11:33:07,470 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:07,470 INFO L139 ounterexampleChecker]: Examining path program with hash -371095232, occurence #1 [2024-11-23 11:33:07,471 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:33:07,471 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:07,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:07,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1998138363, now seen corresponding path program 1 times [2024-11-23 11:33:07,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:07,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412450458] [2024-11-23 11:33:07,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:33:07,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:33:07,912 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-23 11:33:07,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:07,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412450458] [2024-11-23 11:33:07,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412450458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:33:07,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428308184] [2024-11-23 11:33:07,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:33:07,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:07,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:07,917 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:33:07,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 11:33:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:33:08,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 11:33:08,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:33:08,342 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-23 11:33:08,342 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:33:08,553 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-23 11:33:08,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428308184] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:33:08,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:33:08,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-23 11:33:08,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022771772] [2024-11-23 11:33:08,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:33:08,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-23 11:33:08,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:08,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-23 11:33:08,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2024-11-23 11:33:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:08,556 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:08,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.681818181818182) internal successors, (103), 21 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:33:08,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:08,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:08,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:08,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:08,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:08,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:08,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:08,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:33:08,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:08,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:08,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:08,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:08,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:08,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:08,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:08,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:08,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:33:08,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:33:08,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 11:33:09,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-23 11:33:09,021 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 1 more)] === [2024-11-23 11:33:09,021 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:09,022 INFO L139 ounterexampleChecker]: Examining path program with hash -371095232, occurence #2 [2024-11-23 11:33:09,022 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:33:09,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:33:09,022 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:09,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-23 11:33:09,022 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:09,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-23 11:33:09,022 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:09,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-23 11:33:09,022 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:09,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-23 11:33:09,022 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:09,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-11-23 11:33:09,022 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:09,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-23 11:33:09,022 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:09,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-11-23 11:33:09,022 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:09,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2024-11-23 11:33:09,022 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:09,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-11-23 11:33:09,022 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:09,023 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 63 [2024-11-23 11:33:09,023 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:09,023 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 64 [2024-11-23 11:33:09,023 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:09,023 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:33:09,023 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:09,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:09,023 INFO L85 PathProgramCache]: Analyzing trace with hash 2081256588, now seen corresponding path program 2 times [2024-11-23 11:33:09,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:09,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495683954] [2024-11-23 11:33:09,023 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:33:09,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:09,090 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:33:09,090 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:09,456 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 11:33:09,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:09,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495683954] [2024-11-23 11:33:09,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495683954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:33:09,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219042812] [2024-11-23 11:33:09,456 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:33:09,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:09,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:09,459 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:33:09,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 11:33:09,640 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:33:09,640 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:09,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 11:33:09,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:33:09,905 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 11:33:09,908 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:33:10,108 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 11:33:10,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219042812] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:33:10,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:33:10,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-23 11:33:10,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838408083] [2024-11-23 11:33:10,109 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:33:10,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-23 11:33:10,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:10,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-23 11:33:10,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-11-23 11:33:10,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:10,112 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:10,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 21 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) [2024-11-23 11:33:10,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:10,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:10,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:10,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:10,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:10,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:10,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:10,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:33:10,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:33:10,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:10,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:10,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:10,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:10,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:10,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:10,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:10,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:10,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:33:10,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:33:10,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:33:10,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-23 11:33:11,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-23 11:33:11,144 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 1 more)] === [2024-11-23 11:33:11,144 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:11,144 INFO L139 ounterexampleChecker]: Examining path program with hash -371095232, occurence #3 [2024-11-23 11:33:11,145 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:33:11,145 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:33:11,145 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:11,145 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-23 11:33:11,145 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:11,145 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-23 11:33:11,145 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:11,145 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-23 11:33:11,145 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:11,145 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-23 11:33:11,145 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:11,145 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-11-23 11:33:11,145 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:11,145 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-23 11:33:11,145 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:11,145 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-11-23 11:33:11,145 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:11,145 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 53 [2024-11-23 11:33:11,146 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:11,146 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 70 [2024-11-23 11:33:11,146 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:11,146 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2024-11-23 11:33:11,146 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:11,147 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 73 [2024-11-23 11:33:11,147 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:11,147 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 74 [2024-11-23 11:33:11,147 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:11,147 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:33:11,147 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:11,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:11,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1892103706, now seen corresponding path program 3 times [2024-11-23 11:33:11,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:11,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739138233] [2024-11-23 11:33:11,148 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:33:11,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:11,192 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-23 11:33:11,193 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:11,673 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-23 11:33:11,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:11,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739138233] [2024-11-23 11:33:11,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739138233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:33:11,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:33:11,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 11:33:11,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341569561] [2024-11-23 11:33:11,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:33:11,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 11:33:11,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:11,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 11:33:11,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-23 11:33:11,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:11,678 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:11,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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) [2024-11-23 11:33:11,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:11,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:11,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:11,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:11,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:11,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:11,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:11,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:33:11,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:33:11,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:33:11,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:12,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:12,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:12,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:12,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:12,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:12,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:12,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:12,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:33:12,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:33:12,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:33:12,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:33:12,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 11:33:12,224 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 1 more)] === [2024-11-23 11:33:12,224 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:12,224 INFO L139 ounterexampleChecker]: Examining path program with hash -668347520, occurence #1 [2024-11-23 11:33:12,224 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:33:12,224 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:12,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:12,225 INFO L85 PathProgramCache]: Analyzing trace with hash -667900339, now seen corresponding path program 4 times [2024-11-23 11:33:12,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:12,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328402863] [2024-11-23 11:33:12,225 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:33:12,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:12,252 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:33:12,252 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:12,366 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-23 11:33:12,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:12,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328402863] [2024-11-23 11:33:12,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328402863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:33:12,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:33:12,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 11:33:12,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141532982] [2024-11-23 11:33:12,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:33:12,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 11:33:12,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:12,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 11:33:12,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 11:33:12,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:12,368 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:12,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:33:12,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:12,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:12,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:12,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:12,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:12,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:12,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:12,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:33:12,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:33:12,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:33:12,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:33:12,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:12,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:12,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:12,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:12,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:12,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:33:12,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:12,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:12,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:33:12,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:33:12,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:33:12,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:33:12,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:33:12,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 11:33:12,650 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 1 more)] === [2024-11-23 11:33:12,650 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:12,651 INFO L139 ounterexampleChecker]: Examining path program with hash 840268048, occurence #1 [2024-11-23 11:33:12,651 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:33:12,651 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:12,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:12,651 INFO L85 PathProgramCache]: Analyzing trace with hash 895609674, now seen corresponding path program 4 times [2024-11-23 11:33:12,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:12,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476862798] [2024-11-23 11:33:12,652 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:33:12,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:13,186 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:33:13,186 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:40:37,877 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-23 11:40:37,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:40:37,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476862798] [2024-11-23 11:40:37,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476862798] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:40:37,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653377487] [2024-11-23 11:40:37,878 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:40:37,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:37,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:40:37,882 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:40:37,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_250f8abe-3d43-49f2-b9af-0a44f16e0f6a/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 11:40:38,087 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:40:38,087 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:40:38,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-23 11:40:38,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:40:39,145 INFO L349 Elim1Store]: treesize reduction 94, result has 55.5 percent of original size [2024-11-23 11:40:39,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 142 treesize of output 167 [2024-11-23 11:41:35,551 WARN L286 SmtUtils]: Spent 9.67s on a formula simplification. DAG size of input: 512 DAG size of output: 472 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-23 11:41:58,847 INFO L349 Elim1Store]: treesize reduction 510, result has 38.8 percent of original size [2024-11-23 11:41:58,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 6 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 77 case distinctions, treesize of input 6571 treesize of output 3201