./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/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_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/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_290d031b-4297-43a6-9ac7-072fc60024f4/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 faddac23864cc4e42f962ac43a8d0f59593853dbb1d55e3baabe0c76b2187dd4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 11:31:37,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 11:31:37,926 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-23 11:31:37,936 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 11:31:37,936 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 11:31:37,978 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 11:31:37,978 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 11:31:37,978 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 11:31:37,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 11:31:37,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 11:31:37,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 11:31:37,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 11:31:37,979 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 11:31:37,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 11:31:37,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 11:31:37,980 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 11:31:37,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 11:31:37,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 11:31:37,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 11:31:37,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 11:31:37,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 11:31:37,981 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 11:31:37,982 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 11:31:37,983 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 11:31:37,983 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 11:31:37,983 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 11:31:37,983 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 11:31:37,983 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 11:31:37,983 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 11:31:37,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 11:31:37,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:31:37,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 11:31:37,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 11:31:37,984 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 11:31:37,984 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-23 11:31:37,984 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 11:31:37,984 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 11:31:37,984 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-23 11:31:37,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 11:31:37,984 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 11:31:37,984 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-23 11:31:37,985 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-23 11:31:37,985 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-23 11:31:37,985 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_290d031b-4297-43a6-9ac7-072fc60024f4/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 -> faddac23864cc4e42f962ac43a8d0f59593853dbb1d55e3baabe0c76b2187dd4 [2024-11-23 11:31:38,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 11:31:38,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 11:31:38,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 11:31:38,415 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 11:31:38,415 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 11:31:38,416 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c [2024-11-23 11:31:41,559 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/data/da6abdb2e/b684aba514324ff38f0a5f16391e2fd4/FLAG094ad4459 [2024-11-23 11:31:41,839 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 11:31:41,840 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c [2024-11-23 11:31:41,857 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/data/da6abdb2e/b684aba514324ff38f0a5f16391e2fd4/FLAG094ad4459 [2024-11-23 11:31:41,884 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/data/da6abdb2e/b684aba514324ff38f0a5f16391e2fd4 [2024-11-23 11:31:41,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 11:31:41,892 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 11:31:41,896 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 11:31:41,896 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 11:31:41,902 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 11:31:41,903 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:31:41" (1/1) ... [2024-11-23 11:31:41,904 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@499e4dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:41, skipping insertion in model container [2024-11-23 11:31:41,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:31:41" (1/1) ... [2024-11-23 11:31:41,928 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 11:31:42,208 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_290d031b-4297-43a6-9ac7-072fc60024f4/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c[2781,2794] [2024-11-23 11:31:42,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:31:42,239 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 11:31:42,263 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_290d031b-4297-43a6-9ac7-072fc60024f4/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c[2781,2794] [2024-11-23 11:31:42,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:31:42,293 INFO L204 MainTranslator]: Completed translation [2024-11-23 11:31:42,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42 WrapperNode [2024-11-23 11:31:42,294 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 11:31:42,295 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 11:31:42,295 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 11:31:42,295 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 11:31:42,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 11:31:42,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 11:31:42,377 INFO L138 Inliner]: procedures = 22, calls = 31, calls flagged for inlining = 17, calls inlined = 31, statements flattened = 274 [2024-11-23 11:31:42,377 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 11:31:42,382 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 11:31:42,382 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 11:31:42,382 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 11:31:42,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 11:31:42,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 11:31:42,405 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 11:31:42,409 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 11:31:42,421 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 11:31:42,422 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 11:31:42,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 11:31:42,434 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 11:31:42,436 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 11:31:42,446 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 11:31:42,450 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 11:31:42,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 11:31:42,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 11:31:42,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 11:31:42,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:31:42,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:31:42,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-23 11:31:42,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-23 11:31:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 11:31:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-23 11:31:42,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-23 11:31:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-23 11:31:42,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-23 11:31:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 11:31:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 11:31:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 11:31:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 11:31:42,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 11:31:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 11:31:42,539 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 11:31:42,655 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 11:31:42,657 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 11:31:43,431 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 11:31:43,431 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 11:31:44,215 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 11:31:44,215 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-23 11:31:44,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:31:44 BoogieIcfgContainer [2024-11-23 11:31:44,216 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 11:31:44,219 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 11:31:44,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 11:31:44,226 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 11:31:44,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:31:41" (1/3) ... [2024-11-23 11:31:44,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d2667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:31:44, skipping insertion in model container [2024-11-23 11:31:44,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (2/3) ... [2024-11-23 11:31:44,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d2667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:31:44, skipping insertion in model container [2024-11-23 11:31:44,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:31:44" (3/3) ... [2024-11-23 11:31:44,229 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-misc-1.wvr.c [2024-11-23 11:31:44,248 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 11:31:44,252 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-misc-1.wvr.c that has 3 procedures, 18 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-23 11:31:44,252 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 11:31:44,322 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-23 11:31:44,384 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:31:44,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-23 11:31:44,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:31:44,391 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-23 11:31:44,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-23 11:31:44,481 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-23 11:31:44,507 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-23 11:31:44,517 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;@3b356db5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:31:44,517 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-23 11:31:44,705 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:31:44,705 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:31:44,707 INFO L139 ounterexampleChecker]: Examining path program with hash 463988781, occurence #1 [2024-11-23 11:31:44,707 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:31:44,707 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:31:44,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:31:44,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1938495749, now seen corresponding path program 1 times [2024-11-23 11:31:44,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:31:44,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520393185] [2024-11-23 11:31:44,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:31:44,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:31:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:31:45,490 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 11:31:45,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:31:45,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520393185] [2024-11-23 11:31:45,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520393185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:31:45,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:31:45,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 11:31:45,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330527885] [2024-11-23 11:31:45,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:31:45,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 11:31:45,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:31:45,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 11:31:45,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 11:31:45,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:31:45,526 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:31:45,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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 11:31:45,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:31:45,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:31:45,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 11:31:45,602 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:31:45,602 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:31:45,602 INFO L139 ounterexampleChecker]: Examining path program with hash 463988781, occurence #2 [2024-11-23 11:31:45,602 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:31:45,602 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-11-23 11:31:45,622 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:31:45,622 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-23 11:31:45,622 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:31:45,622 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-23 11:31:45,622 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:31:45,623 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-23 11:31:45,623 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:31:45,623 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:31:45,623 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:31:45,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:31:45,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1441489140, now seen corresponding path program 1 times [2024-11-23 11:31:45,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:31:45,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624349882] [2024-11-23 11:31:45,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:31:45,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:31:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:31:45,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:31:45,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:31:45,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624349882] [2024-11-23 11:31:45,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624349882] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:31:45,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060724144] [2024-11-23 11:31:45,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:31:45,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:31:45,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:31:45,974 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:31:45,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 11:31:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:31:46,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 11:31:46,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:31:46,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:31:46,268 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:31:46,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:31:46,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060724144] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 11:31:46,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:31:46,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2024-11-23 11:31:46,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738625098] [2024-11-23 11:31:46,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:31:46,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 11:31:46,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:31:46,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 11:31:46,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-23 11:31:46,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:31:46,368 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:31:46,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 11:31:46,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:31:46,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:31:46,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:31:46,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:31:46,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 11:31:46,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:31:46,678 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:31:46,678 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:31:46,678 INFO L139 ounterexampleChecker]: Examining path program with hash 463988781, occurence #3 [2024-11-23 11:31:46,679 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:31:46,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-11-23 11:31:46,679 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:31:46,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-23 11:31:46,679 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:31:46,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-23 11:31:46,679 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:31:46,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-23 11:31:46,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:31:46,679 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:31:46,679 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:31:46,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:31:46,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1327351536, now seen corresponding path program 1 times [2024-11-23 11:31:46,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:31:46,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456431825] [2024-11-23 11:31:46,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:31:46,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:31:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:31:47,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:31:47,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:31:47,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456431825] [2024-11-23 11:31:47,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456431825] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:31:47,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672309903] [2024-11-23 11:31:47,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:31:47,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:31:47,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:31:47,086 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:31:47,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 11:31:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:31:47,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 11:31:47,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:31:47,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:31:47,411 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:31:47,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:31:47,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672309903] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:31:47,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:31:47,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-23 11:31:47,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237139978] [2024-11-23 11:31:47,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:31:47,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 11:31:47,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:31:47,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 11:31:47,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-23 11:31:47,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:31:47,526 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:31:47,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 11 states have internal predecessors, (33), 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 11:31:47,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:31:47,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:31:47,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:31:47,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:31:47,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:31:47,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:31:47,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 11:31:47,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:31:47,870 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:31:47,871 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:31:47,871 INFO L139 ounterexampleChecker]: Examining path program with hash 463988781, occurence #4 [2024-11-23 11:31:47,871 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:31:47,871 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-23 11:31:47,872 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:31:47,872 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-23 11:31:47,872 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:31:47,872 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-23 11:31:47,873 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:31:47,874 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-11-23 11:31:47,874 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:31:47,874 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:31:47,874 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:31:47,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:31:47,875 INFO L85 PathProgramCache]: Analyzing trace with hash 589189239, now seen corresponding path program 2 times [2024-11-23 11:31:47,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:31:47,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385976214] [2024-11-23 11:31:47,876 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:31:47,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:31:47,946 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:31:47,947 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:31:48,277 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:31:48,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:31:48,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385976214] [2024-11-23 11:31:48,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385976214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:31:48,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172889860] [2024-11-23 11:31:48,278 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:31:48,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:31:48,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:31:48,286 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:31:48,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 11:31:48,430 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:31:48,431 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:31:48,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 11:31:48,435 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:31:48,572 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 11:31:48,574 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:31:48,657 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 11:31:48,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172889860] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:31:48,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:31:48,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5] total 13 [2024-11-23 11:31:48,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121015131] [2024-11-23 11:31:48,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:31:48,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 11:31:48,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:31:48,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 11:31:48,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-23 11:31:48,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:31:48,662 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:31:48,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 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 11:31:48,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:31:48,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:31:48,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:31:48,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:31:49,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:31:49,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:31:49,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:31:49,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 11:31:49,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 11:31:49,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:31:49,285 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:31:49,285 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:31:49,286 INFO L139 ounterexampleChecker]: Examining path program with hash 226175603, occurence #1 [2024-11-23 11:31:49,286 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:31:49,286 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:31:49,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:31:49,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1972318346, now seen corresponding path program 3 times [2024-11-23 11:31:49,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:31:49,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066778343] [2024-11-23 11:31:49,286 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:31:49,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:31:49,470 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-23 11:31:49,470 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:31:52,548 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:31:52,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:31:52,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066778343] [2024-11-23 11:31:52,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066778343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:31:52,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344101930] [2024-11-23 11:31:52,550 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:31:52,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:31:52,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:31:52,552 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:31:52,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 11:31:52,700 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-23 11:31:52,700 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:31:52,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-23 11:31:52,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:31:52,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 11:31:54,301 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 11:31:54,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 245 treesize of output 177 [2024-11-23 11:31:55,954 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:31:55,956 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:32:07,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 226 [2024-11-23 11:32:07,921 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 11:32:07,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 453 treesize of output 385 [2024-11-23 11:32:12,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 146 [2024-11-23 11:32:12,521 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-23 11:32:12,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 265 treesize of output 1 [2024-11-23 11:32:12,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 171 [2024-11-23 11:32:12,544 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-23 11:32:12,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 324 treesize of output 1 [2024-11-23 11:32:12,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 745 treesize of output 661 [2024-11-23 11:32:12,610 INFO L349 Elim1Store]: treesize reduction 352, result has 0.3 percent of original size [2024-11-23 11:32:12,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 1293 treesize of output 1 [2024-11-23 11:32:12,750 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:32:12,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344101930] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:32:12,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:32:12,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 29 [2024-11-23 11:32:12,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043200263] [2024-11-23 11:32:12,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:32:12,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-23 11:32:12,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:32:12,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-23 11:32:12,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2024-11-23 11:32:12,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:32:12,753 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:32:12,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.8) internal successors, (54), 29 states have internal predecessors, (54), 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 11:32:12,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:32:12,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:32:12,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:32:12,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-23 11:32:12,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:32:15,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:32:15,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:32:15,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:32:15,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 11:32:15,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:32:15,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 11:32:16,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:32:16,090 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:32:16,090 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:32:16,091 INFO L139 ounterexampleChecker]: Examining path program with hash 226175603, occurence #2 [2024-11-23 11:32:16,091 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:32:16,091 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-23 11:32:16,091 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:32:16,091 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-23 11:32:16,091 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:32:16,091 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-11-23 11:32:16,091 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:32:16,091 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-23 11:32:16,091 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:32:16,091 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:32:16,091 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:32:16,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:32:16,092 INFO L85 PathProgramCache]: Analyzing trace with hash 414885013, now seen corresponding path program 4 times [2024-11-23 11:32:16,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:32:16,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174953236] [2024-11-23 11:32:16,092 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:32:16,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:32:16,647 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:32:16,648 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:32:48,306 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:32:48,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:32:48,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174953236] [2024-11-23 11:32:48,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174953236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:32:48,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315626000] [2024-11-23 11:32:48,307 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:32:48,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:32:48,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:32:48,312 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:32:48,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 11:32:48,445 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:32:48,446 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:32:48,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-23 11:32:48,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:32:48,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 11:32:50,291 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 11:32:50,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 467 treesize of output 247 [2024-11-23 11:32:51,053 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:32:51,053 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:33:52,316 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 11:33:52,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315626000] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:33:52,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:33:52,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 11] total 34 [2024-11-23 11:33:52,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004713315] [2024-11-23 11:33:52,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:33:52,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-23 11:33:52,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:52,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-23 11:33:52,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=996, Unknown=0, NotChecked=0, Total=1122 [2024-11-23 11:33:52,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:52,318 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:52,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.7941176470588236) internal successors, (61), 34 states have internal predecessors, (61), 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 11:33:52,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:52,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:52,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:52,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-23 11:33:52,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:33:52,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:59,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:59,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:59,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:59,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 11:33:59,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:33:59,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:33:59,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 11:33:59,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:59,529 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:33:59,529 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:59,530 INFO L139 ounterexampleChecker]: Examining path program with hash 226175603, occurence #3 [2024-11-23 11:33:59,530 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:33:59,530 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-23 11:33:59,530 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:59,530 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-23 11:33:59,530 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:59,530 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-23 11:33:59,530 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:59,530 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-23 11:33:59,530 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:59,530 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:33:59,530 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:59,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:59,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1199817279, now seen corresponding path program 5 times [2024-11-23 11:33:59,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:59,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768384308] [2024-11-23 11:33:59,531 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:33:59,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:59,656 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-23 11:33:59,658 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:59,995 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:33:59,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:59,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768384308] [2024-11-23 11:33:59,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768384308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:33:59,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064593484] [2024-11-23 11:33:59,995 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:33:59,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:59,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:59,998 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:34:00,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 11:34:00,166 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-23 11:34:00,166 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:34:00,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 11:34:00,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:34:00,369 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 26 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 11:34:00,369 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:34:00,572 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 11:34:00,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064593484] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:34:00,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:34:00,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 27 [2024-11-23 11:34:00,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061829028] [2024-11-23 11:34:00,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:34:00,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-23 11:34:00,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:34:00,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-23 11:34:00,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=605, Unknown=0, NotChecked=0, Total=756 [2024-11-23 11:34:00,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:00,576 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:34:00,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.4285714285714284) internal successors, (68), 27 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:34:00,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:00,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:34:00,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:34:00,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-23 11:34:00,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:34:00,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:34:00,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:00,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:00,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:34:00,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:34:00,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 11:34:00,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:34:00,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:34:00,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:34:00,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 11:34:00,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-23 11:34:00,936 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:34:00,936 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:34:00,937 INFO L139 ounterexampleChecker]: Examining path program with hash 226175603, occurence #4 [2024-11-23 11:34:00,937 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:34:00,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-23 11:34:00,937 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:00,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-23 11:34:00,937 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:00,938 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-23 11:34:00,938 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:00,938 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-23 11:34:00,938 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:00,938 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:34:00,938 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:34:00,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:00,939 INFO L85 PathProgramCache]: Analyzing trace with hash -686469126, now seen corresponding path program 6 times [2024-11-23 11:34:00,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:34:00,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170957510] [2024-11-23 11:34:00,939 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 11:34:00,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:01,201 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-23 11:34:01,201 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:34:01,569 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 35 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:34:01,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:34:01,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170957510] [2024-11-23 11:34:01,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170957510] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:34:01,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777262548] [2024-11-23 11:34:01,570 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 11:34:01,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:34:01,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:34:01,573 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:34:01,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 11:34:01,742 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-23 11:34:01,742 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:34:01,745 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-23 11:34:01,747 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:34:02,001 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 26 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:02,002 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:34:02,190 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 36 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:02,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777262548] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:34:02,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:34:02,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 28 [2024-11-23 11:34:02,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238405697] [2024-11-23 11:34:02,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:34:02,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-23 11:34:02,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:34:02,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-23 11:34:02,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=589, Unknown=0, NotChecked=0, Total=812 [2024-11-23 11:34:02,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:02,193 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:34:02,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.3448275862068964) internal successors, (68), 28 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:34:02,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:02,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:34:02,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:34:02,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-23 11:34:02,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:34:02,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:34:02,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:34:02,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:34:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:34:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 11:34:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:34:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:34:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:34:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:34:02,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-23 11:34:02,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290d031b-4297-43a6-9ac7-072fc60024f4/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:34:02,582 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:34:02,582 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:34:02,582 INFO L139 ounterexampleChecker]: Examining path program with hash 226175603, occurence #5 [2024-11-23 11:34:02,582 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:34:02,582 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-23 11:34:02,583 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:02,583 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-11-23 11:34:02,583 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:02,583 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-11-23 11:34:02,583 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:02,583 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-11-23 11:34:02,583 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:02,583 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:34:02,583 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:34:02,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:02,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1748757722, now seen corresponding path program 7 times [2024-11-23 11:34:02,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:34:02,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46239179] [2024-11-23 11:34:02,583 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 11:34:02,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat