./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b1e99af7c76570461a4b0ac70d664412f250ec04f47fd9ca8c0f85236f1348c6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 14:19:22,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 14:19:22,270 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-02 14:19:22,274 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 14:19:22,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 14:19:22,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 14:19:22,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 14:19:22,315 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 14:19:22,316 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 14:19:22,316 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 14:19:22,317 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 14:19:22,317 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 14:19:22,318 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 14:19:22,318 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 14:19:22,319 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 14:19:22,319 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 14:19:22,319 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 14:19:22,320 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 14:19:22,320 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 14:19:22,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 14:19:22,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 14:19:22,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 14:19:22,322 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 14:19:22,322 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 14:19:22,322 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 14:19:22,323 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 14:19:22,323 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 14:19:22,323 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 14:19:22,324 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 14:19:22,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 14:19:22,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 14:19:22,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 14:19:22,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 14:19:22,325 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 14:19:22,326 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-02 14:19:22,326 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-02 14:19:22,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 14:19:22,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 14:19:22,327 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-02 14:19:22,327 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-02 14:19:22,327 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-02 14:19:22,328 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1e99af7c76570461a4b0ac70d664412f250ec04f47fd9ca8c0f85236f1348c6 [2024-11-02 14:19:22,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 14:19:22,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 14:19:22,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 14:19:22,715 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 14:19:22,716 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 14:19:22,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c Unable to find full path for "g++" [2024-11-02 14:19:24,834 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 14:19:25,035 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 14:19:25,035 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2024-11-02 14:19:25,049 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/data/edcaf3a23/26ae541a74e34ec39e1f1ed26cb4e3b6/FLAGf406751d3 [2024-11-02 14:19:25,068 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/data/edcaf3a23/26ae541a74e34ec39e1f1ed26cb4e3b6 [2024-11-02 14:19:25,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 14:19:25,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 14:19:25,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 14:19:25,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 14:19:25,083 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 14:19:25,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 02:19:25" (1/1) ... [2024-11-02 14:19:25,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60201577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:25, skipping insertion in model container [2024-11-02 14:19:25,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 02:19:25" (1/1) ... [2024-11-02 14:19:25,123 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 14:19:25,409 WARN L251 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_c88697de-fbcd-4ae9-abea-57a254ee61f5/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c[3694,3707] [2024-11-02 14:19:25,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 14:19:25,435 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 14:19:25,472 WARN L251 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_c88697de-fbcd-4ae9-abea-57a254ee61f5/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c[3694,3707] [2024-11-02 14:19:25,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 14:19:25,504 INFO L204 MainTranslator]: Completed translation [2024-11-02 14:19:25,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:25 WrapperNode [2024-11-02 14:19:25,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 14:19:25,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 14:19:25,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 14:19:25,506 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 14:19:25,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:25" (1/1) ... [2024-11-02 14:19:25,520 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:25" (1/1) ... [2024-11-02 14:19:25,559 INFO L138 Inliner]: procedures = 26, calls = 48, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 295 [2024-11-02 14:19:25,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 14:19:25,560 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 14:19:25,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 14:19:25,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 14:19:25,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:25" (1/1) ... [2024-11-02 14:19:25,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:25" (1/1) ... [2024-11-02 14:19:25,576 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:25" (1/1) ... [2024-11-02 14:19:25,577 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:25" (1/1) ... [2024-11-02 14:19:25,586 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:25" (1/1) ... [2024-11-02 14:19:25,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:25" (1/1) ... [2024-11-02 14:19:25,593 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:25" (1/1) ... [2024-11-02 14:19:25,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:25" (1/1) ... [2024-11-02 14:19:25,598 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 14:19:25,599 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 14:19:25,600 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 14:19:25,600 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 14:19:25,601 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:25" (1/1) ... [2024-11-02 14:19:25,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 14:19:25,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 [2024-11-02 14:19:25,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 14:19:25,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 14:19:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 14:19:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 14:19:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 14:19:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-02 14:19:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-02 14:19:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-02 14:19:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-02 14:19:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-02 14:19:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-02 14:19:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-02 14:19:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-02 14:19:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 14:19:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 14:19:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 14:19:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 14:19:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 14:19:25,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 14:19:25,685 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-02 14:19:25,809 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 14:19:25,811 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 14:19:26,390 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 14:19:26,390 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 14:19:26,806 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 14:19:26,806 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-02 14:19:26,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 02:19:26 BoogieIcfgContainer [2024-11-02 14:19:26,807 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 14:19:26,810 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 14:19:26,810 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 14:19:26,814 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 14:19:26,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 02:19:25" (1/3) ... [2024-11-02 14:19:26,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51aea027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 02:19:26, skipping insertion in model container [2024-11-02 14:19:26,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:19:25" (2/3) ... [2024-11-02 14:19:26,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51aea027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 02:19:26, skipping insertion in model container [2024-11-02 14:19:26,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 02:19:26" (3/3) ... [2024-11-02 14:19:26,820 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2024-11-02 14:19:26,841 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 14:19:26,841 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 14:19:26,842 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 14:19:26,922 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-02 14:19:26,992 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:19:26,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-02 14:19:26,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 [2024-11-02 14:19:26,996 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-02 14:19:26,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-02 14:19:27,035 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:19:27,049 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-02 14:19:27,059 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;@73ea3926, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:19:27,059 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-02 14:19:27,779 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-02 14:19:27,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:19:27,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1230380426, now seen corresponding path program 1 times [2024-11-02 14:19:27,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:19:27,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394386904] [2024-11-02 14:19:27,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:19:27,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:19:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:19:28,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:19:28,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:19:28,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394386904] [2024-11-02 14:19:28,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394386904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:19:28,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:19:28,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 14:19:28,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167867872] [2024-11-02 14:19:28,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:19:28,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:19:28,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:19:28,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:19:28,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:19:28,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:28,147 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:19:28,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 14:19:28,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:28,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:28,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 14:19:28,253 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-02 14:19:28,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:19:28,254 INFO L85 PathProgramCache]: Analyzing trace with hash -274096922, now seen corresponding path program 1 times [2024-11-02 14:19:28,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:19:28,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501508394] [2024-11-02 14:19:28,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:19:28,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:19:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:19:28,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:19:28,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:19:28,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501508394] [2024-11-02 14:19:28,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501508394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:19:28,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:19:28,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 14:19:28,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293564523] [2024-11-02 14:19:28,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:19:28,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 14:19:28,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:19:28,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 14:19:28,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 14:19:28,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:28,579 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:19:28,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-02 14:19:28,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:28,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:28,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:28,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:28,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 14:19:28,701 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-02 14:19:28,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:19:28,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1378595626, now seen corresponding path program 1 times [2024-11-02 14:19:28,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:19:28,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847730818] [2024-11-02 14:19:28,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:19:28,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:19:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:19:29,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:19:29,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:19:29,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847730818] [2024-11-02 14:19:29,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847730818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:19:29,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:19:29,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 14:19:29,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006658629] [2024-11-02 14:19:29,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:19:29,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 14:19:29,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:19:29,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 14:19:29,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 14:19:29,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:29,010 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:19:29,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-11-02 14:19:29,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:29,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:29,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:29,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:29,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:29,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:29,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 14:19:29,145 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-02 14:19:29,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:19:29,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1221358372, now seen corresponding path program 1 times [2024-11-02 14:19:29,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:19:29,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951685195] [2024-11-02 14:19:29,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:19:29,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:19:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:19:29,392 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:19:29,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:19:29,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951685195] [2024-11-02 14:19:29,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951685195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 14:19:29,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666158706] [2024-11-02 14:19:29,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:19:29,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 14:19:29,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 [2024-11-02 14:19:29,409 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 14:19:29,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 14:19:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:19:29,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-02 14:19:29,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 14:19:29,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:19:29,789 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 14:19:29,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:19:29,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666158706] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 14:19:29,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 14:19:29,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-02 14:19:29,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893109211] [2024-11-02 14:19:29,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 14:19:29,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-02 14:19:29,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:19:29,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-02 14:19:29,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-02 14:19:29,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:29,911 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:19:29,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 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) [2024-11-02 14:19:29,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:29,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:29,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:29,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:30,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:30,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:30,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:30,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:30,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 14:19:30,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 14:19:30,254 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-02 14:19:30,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:19:30,255 INFO L85 PathProgramCache]: Analyzing trace with hash 641970794, now seen corresponding path program 2 times [2024-11-02 14:19:30,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:19:30,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925261617] [2024-11-02 14:19:30,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:19:30,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:19:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:19:30,558 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 14:19:30,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:19:30,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925261617] [2024-11-02 14:19:30,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925261617] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 14:19:30,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27948672] [2024-11-02 14:19:30,559 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-02 14:19:30,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 14:19:30,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 [2024-11-02 14:19:30,562 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 14:19:30,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 14:19:30,687 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-02 14:19:30,687 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 14:19:30,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-02 14:19:30,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 14:19:30,990 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 14:19:30,990 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 14:19:31,122 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 14:19:31,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27948672] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 14:19:31,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-02 14:19:31,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 12 [2024-11-02 14:19:31,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315503248] [2024-11-02 14:19:31,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:19:31,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 14:19:31,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:19:31,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 14:19:31,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-02 14:19:31,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:31,126 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:19:31,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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) [2024-11-02 14:19:31,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:31,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:31,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:31,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:31,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:31,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:31,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:31,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:31,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:31,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:31,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-02 14:19:32,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 14:19:32,093 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-02 14:19:32,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:19:32,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1234215464, now seen corresponding path program 1 times [2024-11-02 14:19:32,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:19:32,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051903909] [2024-11-02 14:19:32,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:19:32,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:19:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:19:32,330 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 14:19:32,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:19:32,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051903909] [2024-11-02 14:19:32,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051903909] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 14:19:32,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465598778] [2024-11-02 14:19:32,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:19:32,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 14:19:32,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 [2024-11-02 14:19:32,336 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 14:19:32,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 14:19:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:19:32,457 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-02 14:19:32,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 14:19:32,764 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 14:19:32,764 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 14:19:32,886 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 14:19:32,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465598778] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 14:19:32,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-02 14:19:32,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 12 [2024-11-02 14:19:32,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230106370] [2024-11-02 14:19:32,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:19:32,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 14:19:32,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:19:32,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 14:19:32,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-02 14:19:32,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:32,890 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:19:32,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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) [2024-11-02 14:19:32,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:32,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:32,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:32,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:32,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:32,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:33,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:33,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:33,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:33,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:33,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:33,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:33,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-02 14:19:33,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-02 14:19:33,329 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-02 14:19:33,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:19:33,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1983522854, now seen corresponding path program 1 times [2024-11-02 14:19:33,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:19:33,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456280273] [2024-11-02 14:19:33,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:19:33,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:19:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:19:34,417 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:19:34,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:19:34,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456280273] [2024-11-02 14:19:34,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456280273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 14:19:34,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926069294] [2024-11-02 14:19:34,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:19:34,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 14:19:34,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 [2024-11-02 14:19:34,420 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 14:19:34,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-02 14:19:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:19:34,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-02 14:19:34,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 14:19:35,008 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-02 14:19:35,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 15 [2024-11-02 14:19:35,189 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:19:35,190 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 14:19:35,639 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-02 14:19:35,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926069294] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 14:19:35,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 14:19:35,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 7] total 23 [2024-11-02 14:19:35,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95390492] [2024-11-02 14:19:35,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 14:19:35,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-02 14:19:35,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:19:35,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-02 14:19:35,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2024-11-02 14:19:35,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:35,643 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:19:35,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.3478260869565215) internal successors, (123), 23 states have internal predecessors, (123), 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) [2024-11-02 14:19:35,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:35,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:35,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:35,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:35,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:35,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:35,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:37,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:37,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:37,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:37,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:37,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:37,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:37,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-02 14:19:37,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-02 14:19:37,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-02 14:19:37,398 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-02 14:19:37,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:19:37,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1157325206, now seen corresponding path program 2 times [2024-11-02 14:19:37,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:19:37,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675010638] [2024-11-02 14:19:37,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:19:37,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:19:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:19:37,600 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:19:37,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:19:37,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675010638] [2024-11-02 14:19:37,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675010638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 14:19:37,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490478313] [2024-11-02 14:19:37,601 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-02 14:19:37,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 14:19:37,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 [2024-11-02 14:19:37,603 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 14:19:37,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-02 14:19:37,723 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-02 14:19:37,724 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 14:19:37,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-02 14:19:37,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 14:19:37,935 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:19:37,935 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 14:19:38,071 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:19:38,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490478313] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 14:19:38,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 14:19:38,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-02 14:19:38,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141221695] [2024-11-02 14:19:38,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 14:19:38,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-02 14:19:38,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:19:38,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-02 14:19:38,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-02 14:19:38,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:38,074 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:19:38,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 14 states have internal predecessors, (89), 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) [2024-11-02 14:19:38,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:38,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:38,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:38,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:38,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:38,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:38,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-02 14:19:38,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:38,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:38,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:38,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:38,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:38,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:38,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:38,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-02 14:19:38,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 14:19:38,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-02 14:19:38,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-02 14:19:38,500 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-02 14:19:38,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:19:38,501 INFO L85 PathProgramCache]: Analyzing trace with hash -229036572, now seen corresponding path program 3 times [2024-11-02 14:19:38,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:19:38,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406733879] [2024-11-02 14:19:38,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:19:38,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:19:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:19:38,752 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-02 14:19:38,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:19:38,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406733879] [2024-11-02 14:19:38,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406733879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 14:19:38,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520832330] [2024-11-02 14:19:38,753 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-02 14:19:38,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 14:19:38,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 [2024-11-02 14:19:38,756 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 14:19:38,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-02 14:19:38,875 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-02 14:19:38,875 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 14:19:38,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 14:19:38,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 14:19:39,079 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-02 14:19:39,079 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 14:19:39,211 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-02 14:19:39,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520832330] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 14:19:39,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 14:19:39,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 15 [2024-11-02 14:19:39,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234699225] [2024-11-02 14:19:39,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 14:19:39,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-02 14:19:39,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:19:39,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-02 14:19:39,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-02 14:19:39,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:39,214 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:19:39,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.466666666666667) internal successors, (127), 15 states have internal predecessors, (127), 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) [2024-11-02 14:19:39,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:39,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:39,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:39,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:39,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:39,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:39,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-02 14:19:39,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-02 14:19:39,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-02 14:19:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 14:19:40,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-02 14:19:40,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-02 14:19:40,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-02 14:19:40,443 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-02 14:19:40,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:19:40,443 INFO L85 PathProgramCache]: Analyzing trace with hash 636191258, now seen corresponding path program 4 times [2024-11-02 14:19:40,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:19:40,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468707585] [2024-11-02 14:19:40,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:19:40,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:19:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:19:40,714 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 14:19:40,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:19:40,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468707585] [2024-11-02 14:19:40,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468707585] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 14:19:40,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869211592] [2024-11-02 14:19:40,715 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-02 14:19:40,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 14:19:40,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 [2024-11-02 14:19:40,719 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 14:19:40,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-02 14:19:40,830 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-02 14:19:40,830 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 14:19:40,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 14:19:40,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 14:19:41,057 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-02 14:19:41,057 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 14:19:41,174 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-02 14:19:41,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869211592] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 14:19:41,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 14:19:41,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 15 [2024-11-02 14:19:41,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949616] [2024-11-02 14:19:41,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 14:19:41,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-02 14:19:41,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:19:41,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-02 14:19:41,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-02 14:19:41,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:41,177 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:19:41,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.666666666666666) internal successors, (130), 15 states have internal predecessors, (130), 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) [2024-11-02 14:19:41,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:41,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:41,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:41,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:41,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:41,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:41,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-02 14:19:41,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-02 14:19:41,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-02 14:19:41,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:42,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:42,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:42,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:42,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:42,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:42,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:42,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-02 14:19:42,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 14:19:42,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-02 14:19:42,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-02 14:19:42,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-02 14:19:42,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-02 14:19:42,445 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-02 14:19:42,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:19:42,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1444151696, now seen corresponding path program 5 times [2024-11-02 14:19:42,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:19:42,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901143732] [2024-11-02 14:19:42,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:19:42,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:19:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:19:42,804 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 14:19:42,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:19:42,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901143732] [2024-11-02 14:19:42,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901143732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 14:19:42,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62996633] [2024-11-02 14:19:42,805 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-02 14:19:42,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 14:19:42,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 [2024-11-02 14:19:42,807 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 14:19:42,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-02 14:19:42,966 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-02 14:19:42,967 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 14:19:42,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-02 14:19:42,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 14:19:43,292 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 26 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 14:19:43,292 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 14:19:43,624 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 26 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 14:19:43,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62996633] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 14:19:43,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 14:19:43,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-02 14:19:43,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727879667] [2024-11-02 14:19:43,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 14:19:43,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-02 14:19:43,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:19:43,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-02 14:19:43,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-11-02 14:19:43,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:43,631 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:19:43,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.869565217391305) internal successors, (135), 22 states have internal predecessors, (135), 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) [2024-11-02 14:19:43,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:43,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:43,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:43,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:43,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:43,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:43,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-11-02 14:19:43,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-02 14:19:43,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-02 14:19:43,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-02 14:19:43,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:43,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-02 14:19:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 14:19:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-02 14:19:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-02 14:19:43,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-02 14:19:43,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-02 14:19:44,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 14:19:44,098 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-02 14:19:44,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:19:44,098 INFO L85 PathProgramCache]: Analyzing trace with hash 781314134, now seen corresponding path program 6 times [2024-11-02 14:19:44,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:19:44,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380605532] [2024-11-02 14:19:44,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:19:44,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:19:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:19:47,852 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:19:47,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:19:47,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380605532] [2024-11-02 14:19:47,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380605532] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 14:19:47,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972325813] [2024-11-02 14:19:47,853 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-02 14:19:47,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 14:19:47,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 [2024-11-02 14:19:47,856 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 14:19:47,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88697de-fbcd-4ae9-abea-57a254ee61f5/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-02 14:19:48,008 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-11-02 14:19:48,008 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 14:19:48,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-02 14:19:48,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 14:19:49,603 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-02 14:19:49,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 15 [2024-11-02 14:19:49,755 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:19:49,756 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 14:19:50,272 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-02 14:19:50,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972325813] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 14:19:50,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 14:19:50,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 6] total 42 [2024-11-02 14:19:50,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220748410] [2024-11-02 14:19:50,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 14:19:50,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-02 14:19:50,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:19:50,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-02 14:19:50,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1554, Unknown=0, NotChecked=0, Total=1722 [2024-11-02 14:19:50,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:50,276 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:19:50,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.761904761904762) internal successors, (158), 42 states have internal predecessors, (158), 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) [2024-11-02 14:19:50,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:19:50,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-02 14:19:50,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-02 14:19:50,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:50,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:50,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:19:50,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-11-02 14:19:50,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-02 14:19:50,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-02 14:19:50,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-02 14:19:50,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-02 14:19:50,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.