./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a22b5b7c3f7f6e8ff7182918ba517a92e8c6204e4a486ab05fe09fb2404c376 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:04:25,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:04:25,506 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:04:25,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:04:25,516 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:04:25,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:04:25,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:04:25,562 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:04:25,562 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:04:25,563 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:04:25,564 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:04:25,564 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:04:25,564 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:04:25,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:04:25,565 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:04:25,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:04:25,565 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:04:25,565 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:04:25,565 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:04:25,565 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:04:25,565 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:04:25,565 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:04:25,566 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:04:25,566 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:04:25,566 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:04:25,566 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:04:25,566 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:04:25,566 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:04:25,566 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:04:25,566 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:04:25,566 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:04:25,566 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:04:25,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:04:25,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:04:25,567 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:04:25,567 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:04:25,567 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:04:25,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:04:25,567 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:04:25,567 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:04:25,567 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:04:25,569 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:04:25,569 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:04:25,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:04:25,570 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:04:25,570 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:04:25,570 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:04:25,570 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:04:25,570 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC 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 -> Automizer 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 -> 0a22b5b7c3f7f6e8ff7182918ba517a92e8c6204e4a486ab05fe09fb2404c376 [2024-11-24 00:04:25,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:04:25,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:04:25,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:04:25,979 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:04:25,979 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:04:25,981 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/email_spec0_product11.cil.c [2024-11-24 00:04:29,357 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/data/0dc25a37e/0ef7fd91eeee4846943924c78a59dcfe/FLAGef88e10ad [2024-11-24 00:04:29,813 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:04:29,814 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/sv-benchmarks/c/product-lines/email_spec0_product11.cil.c [2024-11-24 00:04:29,834 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/data/0dc25a37e/0ef7fd91eeee4846943924c78a59dcfe/FLAGef88e10ad [2024-11-24 00:04:29,853 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/data/0dc25a37e/0ef7fd91eeee4846943924c78a59dcfe [2024-11-24 00:04:29,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:04:29,858 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:04:29,859 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:04:29,860 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:04:29,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:04:29,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:04:29" (1/1) ... [2024-11-24 00:04:29,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18eab6f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:29, skipping insertion in model container [2024-11-24 00:04:29,868 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:04:29" (1/1) ... [2024-11-24 00:04:29,927 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:04:30,663 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/sv-benchmarks/c/product-lines/email_spec0_product11.cil.c[59717,59730] [2024-11-24 00:04:30,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:04:30,688 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:04:30,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2024-11-24 00:04:30,702 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [460] [2024-11-24 00:04:30,702 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [509] [2024-11-24 00:04:30,702 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [576] [2024-11-24 00:04:30,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [876] [2024-11-24 00:04:30,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [896] [2024-11-24 00:04:30,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1262] [2024-11-24 00:04:30,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1478] [2024-11-24 00:04:30,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1671] [2024-11-24 00:04:30,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2740] [2024-11-24 00:04:30,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2749] [2024-11-24 00:04:30,848 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/sv-benchmarks/c/product-lines/email_spec0_product11.cil.c[59717,59730] [2024-11-24 00:04:30,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:04:30,889 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:04:30,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:30 WrapperNode [2024-11-24 00:04:30,890 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:04:30,891 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:04:30,891 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:04:30,891 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:04:30,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:30" (1/1) ... [2024-11-24 00:04:30,938 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:30" (1/1) ... [2024-11-24 00:04:31,003 INFO L138 Inliner]: procedures = 121, calls = 162, calls flagged for inlining = 48, calls inlined = 43, statements flattened = 798 [2024-11-24 00:04:31,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:04:31,004 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:04:31,005 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:04:31,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:04:31,021 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:30" (1/1) ... [2024-11-24 00:04:31,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:30" (1/1) ... [2024-11-24 00:04:31,028 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:30" (1/1) ... [2024-11-24 00:04:31,052 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-24 00:04:31,053 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:30" (1/1) ... [2024-11-24 00:04:31,053 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:30" (1/1) ... [2024-11-24 00:04:31,069 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:30" (1/1) ... [2024-11-24 00:04:31,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:30" (1/1) ... [2024-11-24 00:04:31,088 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:30" (1/1) ... [2024-11-24 00:04:31,096 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:30" (1/1) ... [2024-11-24 00:04:31,103 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:30" (1/1) ... [2024-11-24 00:04:31,118 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:04:31,119 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:04:31,119 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:04:31,119 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:04:31,120 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:30" (1/1) ... [2024-11-24 00:04:31,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:04:31,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:31,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:04:31,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:04:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-24 00:04:31,241 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-24 00:04:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-24 00:04:31,242 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-24 00:04:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-24 00:04:31,243 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-24 00:04:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-24 00:04:31,243 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-24 00:04:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-24 00:04:31,243 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-24 00:04:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-24 00:04:31,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-24 00:04:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:04:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-24 00:04:31,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-24 00:04:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-24 00:04:31,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-24 00:04:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-24 00:04:31,245 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-24 00:04:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-24 00:04:31,245 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-24 00:04:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-24 00:04:31,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-24 00:04:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-24 00:04:31,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-24 00:04:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:04:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:04:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:04:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:04:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-24 00:04:31,247 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-24 00:04:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:04:31,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:04:31,547 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:04:31,550 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:04:32,693 INFO L? ?]: Removed 304 outVars from TransFormulas that were not future-live. [2024-11-24 00:04:32,693 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:04:32,725 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:04:32,725 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:04:32,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:04:32 BoogieIcfgContainer [2024-11-24 00:04:32,725 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:04:32,731 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:04:32,731 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:04:32,737 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:04:32,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:04:29" (1/3) ... [2024-11-24 00:04:32,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462e6bc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:04:32, skipping insertion in model container [2024-11-24 00:04:32,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:30" (2/3) ... [2024-11-24 00:04:32,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462e6bc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:04:32, skipping insertion in model container [2024-11-24 00:04:32,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:04:32" (3/3) ... [2024-11-24 00:04:32,741 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec0_product11.cil.c [2024-11-24 00:04:32,766 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:04:32,769 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec0_product11.cil.c that has 14 procedures, 234 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:04:32,873 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:04:32,892 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=PETRI_NET, 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;@6503c37e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:04:32,892 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:04:32,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 234 states, 184 states have (on average 1.5326086956521738) internal successors, (282), 186 states have internal predecessors, (282), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-24 00:04:32,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 00:04:32,914 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:32,915 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:32,916 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:32,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:32,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1128686556, now seen corresponding path program 1 times [2024-11-24 00:04:32,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:32,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096923162] [2024-11-24 00:04:32,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:32,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:33,990 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-24 00:04:33,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:33,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096923162] [2024-11-24 00:04:33,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096923162] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:33,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83102323] [2024-11-24 00:04:33,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:33,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:33,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:33,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:33,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:04:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:34,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:04:34,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:34,452 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-24 00:04:34,453 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:34,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83102323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:34,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:04:34,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-24 00:04:34,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971282933] [2024-11-24 00:04:34,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:34,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:04:34,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:34,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:04:34,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:04:34,497 INFO L87 Difference]: Start difference. First operand has 234 states, 184 states have (on average 1.5326086956521738) internal successors, (282), 186 states have internal predecessors, (282), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:34,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:34,565 INFO L93 Difference]: Finished difference Result 315 states and 459 transitions. [2024-11-24 00:04:34,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:04:34,567 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2024-11-24 00:04:34,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:34,580 INFO L225 Difference]: With dead ends: 315 [2024-11-24 00:04:34,580 INFO L226 Difference]: Without dead ends: 227 [2024-11-24 00:04:34,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:04:34,591 INFO L435 NwaCegarLoop]: 348 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:34,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:34,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-24 00:04:34,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2024-11-24 00:04:34,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 178 states have (on average 1.5224719101123596) internal successors, (271), 179 states have internal predecessors, (271), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-24 00:04:34,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 340 transitions. [2024-11-24 00:04:34,680 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 340 transitions. Word has length 93 [2024-11-24 00:04:34,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:34,682 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 340 transitions. [2024-11-24 00:04:34,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:34,684 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 340 transitions. [2024-11-24 00:04:34,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 00:04:34,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:34,697 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:34,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:04:34,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:34,901 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:34,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:34,902 INFO L85 PathProgramCache]: Analyzing trace with hash -314554218, now seen corresponding path program 1 times [2024-11-24 00:04:34,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:34,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48576551] [2024-11-24 00:04:34,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:34,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:35,367 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-24 00:04:35,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:35,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48576551] [2024-11-24 00:04:35,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48576551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:35,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462307686] [2024-11-24 00:04:35,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:35,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:35,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:35,372 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:35,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:04:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:35,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 00:04:35,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:35,876 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-24 00:04:35,877 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:35,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462307686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:35,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:04:35,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-24 00:04:35,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994301671] [2024-11-24 00:04:35,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:35,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:04:35,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:35,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:04:35,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:04:35,882 INFO L87 Difference]: Start difference. First operand 227 states and 340 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:35,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:35,968 INFO L93 Difference]: Finished difference Result 304 states and 439 transitions. [2024-11-24 00:04:35,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:04:35,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2024-11-24 00:04:35,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:35,972 INFO L225 Difference]: With dead ends: 304 [2024-11-24 00:04:35,972 INFO L226 Difference]: Without dead ends: 229 [2024-11-24 00:04:35,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:04:35,977 INFO L435 NwaCegarLoop]: 338 mSDtfsCounter, 1 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:35,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 674 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:35,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-24 00:04:35,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 228. [2024-11-24 00:04:35,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 179 states have (on average 1.5195530726256983) internal successors, (272), 180 states have internal predecessors, (272), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-24 00:04:36,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 341 transitions. [2024-11-24 00:04:36,001 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 341 transitions. Word has length 93 [2024-11-24 00:04:36,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:36,001 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 341 transitions. [2024-11-24 00:04:36,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:36,002 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 341 transitions. [2024-11-24 00:04:36,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 00:04:36,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:36,010 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:36,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:04:36,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:36,212 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:36,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:36,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1583519332, now seen corresponding path program 1 times [2024-11-24 00:04:36,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:36,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78214325] [2024-11-24 00:04:36,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:36,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:36,589 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-24 00:04:36,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:36,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78214325] [2024-11-24 00:04:36,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78214325] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:36,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70112443] [2024-11-24 00:04:36,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:36,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:36,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:36,596 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:36,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:04:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:37,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:04:37,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:37,055 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-24 00:04:37,057 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:37,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70112443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:37,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:04:37,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-24 00:04:37,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055022969] [2024-11-24 00:04:37,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:37,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:04:37,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:37,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:04:37,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:04:37,060 INFO L87 Difference]: Start difference. First operand 228 states and 341 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:37,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:37,123 INFO L93 Difference]: Finished difference Result 486 states and 741 transitions. [2024-11-24 00:04:37,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:04:37,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2024-11-24 00:04:37,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:37,127 INFO L225 Difference]: With dead ends: 486 [2024-11-24 00:04:37,127 INFO L226 Difference]: Without dead ends: 284 [2024-11-24 00:04:37,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:04:37,137 INFO L435 NwaCegarLoop]: 355 mSDtfsCounter, 107 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:37,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 649 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:37,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-11-24 00:04:37,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 276. [2024-11-24 00:04:37,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 216 states have (on average 1.5416666666666667) internal successors, (333), 217 states have internal predecessors, (333), 46 states have call successors, (46), 13 states have call predecessors, (46), 13 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:04:37,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 424 transitions. [2024-11-24 00:04:37,169 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 424 transitions. Word has length 98 [2024-11-24 00:04:37,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:37,170 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 424 transitions. [2024-11-24 00:04:37,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:37,170 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 424 transitions. [2024-11-24 00:04:37,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:04:37,175 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:37,176 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:37,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:04:37,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:37,376 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:37,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:37,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1069723577, now seen corresponding path program 1 times [2024-11-24 00:04:37,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:37,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818237518] [2024-11-24 00:04:37,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:37,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:37,624 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-24 00:04:37,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:37,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818237518] [2024-11-24 00:04:37,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818237518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:37,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866394265] [2024-11-24 00:04:37,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:37,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:37,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:37,627 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:37,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:04:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:37,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:04:37,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:38,050 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-24 00:04:38,054 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:38,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866394265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:38,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:04:38,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-24 00:04:38,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872956637] [2024-11-24 00:04:38,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:38,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:04:38,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:38,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:04:38,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:04:38,060 INFO L87 Difference]: Start difference. First operand 276 states and 424 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:04:38,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:38,159 INFO L93 Difference]: Finished difference Result 543 states and 838 transitions. [2024-11-24 00:04:38,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:04:38,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 99 [2024-11-24 00:04:38,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:38,168 INFO L225 Difference]: With dead ends: 543 [2024-11-24 00:04:38,168 INFO L226 Difference]: Without dead ends: 278 [2024-11-24 00:04:38,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:04:38,171 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 2 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:38,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1317 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:38,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-11-24 00:04:38,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2024-11-24 00:04:38,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 217 states have (on average 1.5391705069124424) internal successors, (334), 219 states have internal predecessors, (334), 46 states have call successors, (46), 13 states have call predecessors, (46), 14 states have return successors, (47), 45 states have call predecessors, (47), 45 states have call successors, (47) [2024-11-24 00:04:38,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 427 transitions. [2024-11-24 00:04:38,215 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 427 transitions. Word has length 99 [2024-11-24 00:04:38,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:38,217 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 427 transitions. [2024-11-24 00:04:38,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:04:38,217 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 427 transitions. [2024-11-24 00:04:38,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 00:04:38,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:38,220 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:38,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 00:04:38,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:38,425 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:38,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:38,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1676016982, now seen corresponding path program 1 times [2024-11-24 00:04:38,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:38,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359523546] [2024-11-24 00:04:38,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:38,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-24 00:04:38,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:38,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359523546] [2024-11-24 00:04:38,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359523546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:38,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347839051] [2024-11-24 00:04:38,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:38,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:38,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:38,683 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:38,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:04:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:39,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:04:39,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:39,106 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-24 00:04:39,108 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:39,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347839051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:39,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:04:39,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-24 00:04:39,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809343863] [2024-11-24 00:04:39,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:39,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:04:39,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:39,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:04:39,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:04:39,111 INFO L87 Difference]: Start difference. First operand 278 states and 427 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:04:39,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:39,221 INFO L93 Difference]: Finished difference Result 545 states and 843 transitions. [2024-11-24 00:04:39,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:04:39,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2024-11-24 00:04:39,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:39,228 INFO L225 Difference]: With dead ends: 545 [2024-11-24 00:04:39,230 INFO L226 Difference]: Without dead ends: 280 [2024-11-24 00:04:39,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:04:39,231 INFO L435 NwaCegarLoop]: 330 mSDtfsCounter, 2 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:39,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1303 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:04:39,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-24 00:04:39,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2024-11-24 00:04:39,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 218 states have (on average 1.536697247706422) internal successors, (335), 221 states have internal predecessors, (335), 46 states have call successors, (46), 13 states have call predecessors, (46), 15 states have return successors, (52), 45 states have call predecessors, (52), 45 states have call successors, (52) [2024-11-24 00:04:39,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 433 transitions. [2024-11-24 00:04:39,260 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 433 transitions. Word has length 100 [2024-11-24 00:04:39,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:39,261 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 433 transitions. [2024-11-24 00:04:39,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:04:39,261 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 433 transitions. [2024-11-24 00:04:39,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 00:04:39,267 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:39,267 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:39,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 00:04:39,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:39,468 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:39,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:39,469 INFO L85 PathProgramCache]: Analyzing trace with hash -783188837, now seen corresponding path program 1 times [2024-11-24 00:04:39,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:39,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872491930] [2024-11-24 00:04:39,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:39,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:39,711 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-24 00:04:39,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:39,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872491930] [2024-11-24 00:04:39,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872491930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:39,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:39,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:04:39,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162905886] [2024-11-24 00:04:39,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:39,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:04:39,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:39,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:04:39,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:04:39,714 INFO L87 Difference]: Start difference. First operand 280 states and 433 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:04:39,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:39,778 INFO L93 Difference]: Finished difference Result 537 states and 834 transitions. [2024-11-24 00:04:39,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:04:39,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 101 [2024-11-24 00:04:39,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:39,781 INFO L225 Difference]: With dead ends: 537 [2024-11-24 00:04:39,782 INFO L226 Difference]: Without dead ends: 280 [2024-11-24 00:04:39,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:04:39,784 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 2 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:39,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1321 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:39,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-24 00:04:39,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2024-11-24 00:04:39,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 218 states have (on average 1.536697247706422) internal successors, (335), 221 states have internal predecessors, (335), 46 states have call successors, (46), 13 states have call predecessors, (46), 15 states have return successors, (51), 45 states have call predecessors, (51), 45 states have call successors, (51) [2024-11-24 00:04:39,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 432 transitions. [2024-11-24 00:04:39,804 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 432 transitions. Word has length 101 [2024-11-24 00:04:39,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:39,805 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 432 transitions. [2024-11-24 00:04:39,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:04:39,805 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 432 transitions. [2024-11-24 00:04:39,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 00:04:39,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:39,809 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:39,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:04:39,809 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:39,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:39,810 INFO L85 PathProgramCache]: Analyzing trace with hash -87489828, now seen corresponding path program 2 times [2024-11-24 00:04:39,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:39,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441701858] [2024-11-24 00:04:39,810 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:04:39,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:39,855 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 00:04:39,855 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:04:39,951 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 00:04:39,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:39,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441701858] [2024-11-24 00:04:39,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441701858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:39,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:39,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:04:39,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549293044] [2024-11-24 00:04:39,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:39,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:04:39,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:39,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:04:39,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:04:39,953 INFO L87 Difference]: Start difference. First operand 280 states and 432 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:04:40,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:40,032 INFO L93 Difference]: Finished difference Result 550 states and 855 transitions. [2024-11-24 00:04:40,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:04:40,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 102 [2024-11-24 00:04:40,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:40,037 INFO L225 Difference]: With dead ends: 550 [2024-11-24 00:04:40,037 INFO L226 Difference]: Without dead ends: 483 [2024-11-24 00:04:40,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:04:40,039 INFO L435 NwaCegarLoop]: 341 mSDtfsCounter, 304 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:40,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 1257 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:40,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-24 00:04:40,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 481. [2024-11-24 00:04:40,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 377 states have (on average 1.5835543766578248) internal successors, (597), 381 states have internal predecessors, (597), 80 states have call successors, (80), 23 states have call predecessors, (80), 23 states have return successors, (85), 76 states have call predecessors, (85), 79 states have call successors, (85) [2024-11-24 00:04:40,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 762 transitions. [2024-11-24 00:04:40,100 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 762 transitions. Word has length 102 [2024-11-24 00:04:40,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:40,101 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 762 transitions. [2024-11-24 00:04:40,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:04:40,101 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 762 transitions. [2024-11-24 00:04:40,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:04:40,104 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:40,105 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:40,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:04:40,105 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:40,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:40,106 INFO L85 PathProgramCache]: Analyzing trace with hash -104875442, now seen corresponding path program 1 times [2024-11-24 00:04:40,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:40,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683807945] [2024-11-24 00:04:40,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:40,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:40,287 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-24 00:04:40,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:40,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683807945] [2024-11-24 00:04:40,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683807945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:40,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:40,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:04:40,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726824215] [2024-11-24 00:04:40,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:40,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:04:40,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:40,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:04:40,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:04:40,290 INFO L87 Difference]: Start difference. First operand 481 states and 762 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:04:40,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:40,361 INFO L93 Difference]: Finished difference Result 941 states and 1497 transitions. [2024-11-24 00:04:40,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:04:40,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2024-11-24 00:04:40,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:40,366 INFO L225 Difference]: With dead ends: 941 [2024-11-24 00:04:40,366 INFO L226 Difference]: Without dead ends: 483 [2024-11-24 00:04:40,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:04:40,369 INFO L435 NwaCegarLoop]: 334 mSDtfsCounter, 1 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1324 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:40,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1324 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:40,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-24 00:04:40,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2024-11-24 00:04:40,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 378 states have (on average 1.582010582010582) internal successors, (598), 383 states have internal predecessors, (598), 80 states have call successors, (80), 23 states have call predecessors, (80), 24 states have return successors, (87), 76 states have call predecessors, (87), 79 states have call successors, (87) [2024-11-24 00:04:40,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 765 transitions. [2024-11-24 00:04:40,432 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 765 transitions. Word has length 110 [2024-11-24 00:04:40,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:40,432 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 765 transitions. [2024-11-24 00:04:40,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:04:40,434 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 765 transitions. [2024-11-24 00:04:40,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:04:40,438 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:40,439 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:40,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:04:40,439 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:40,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:40,440 INFO L85 PathProgramCache]: Analyzing trace with hash 770890935, now seen corresponding path program 1 times [2024-11-24 00:04:40,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:40,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635462799] [2024-11-24 00:04:40,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:40,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:40,642 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-24 00:04:40,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:40,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635462799] [2024-11-24 00:04:40,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635462799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:40,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:40,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:04:40,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880856713] [2024-11-24 00:04:40,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:40,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:04:40,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:40,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:04:40,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:04:40,645 INFO L87 Difference]: Start difference. First operand 483 states and 765 transitions. Second operand has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-24 00:04:40,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:40,844 INFO L93 Difference]: Finished difference Result 945 states and 1500 transitions. [2024-11-24 00:04:40,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:04:40,845 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 104 [2024-11-24 00:04:40,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:40,850 INFO L225 Difference]: With dead ends: 945 [2024-11-24 00:04:40,850 INFO L226 Difference]: Without dead ends: 487 [2024-11-24 00:04:40,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:04:40,853 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 7 mSDsluCounter, 1915 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:40,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2239 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:04:40,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-24 00:04:40,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 485. [2024-11-24 00:04:40,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 380 states have (on average 1.5789473684210527) internal successors, (600), 384 states have internal predecessors, (600), 80 states have call successors, (80), 24 states have call predecessors, (80), 24 states have return successors, (86), 76 states have call predecessors, (86), 79 states have call successors, (86) [2024-11-24 00:04:40,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 766 transitions. [2024-11-24 00:04:40,900 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 766 transitions. Word has length 104 [2024-11-24 00:04:40,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:40,902 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 766 transitions. [2024-11-24 00:04:40,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-24 00:04:40,903 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 766 transitions. [2024-11-24 00:04:40,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:04:40,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:40,925 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:40,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:04:40,925 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:40,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:40,926 INFO L85 PathProgramCache]: Analyzing trace with hash 2095420112, now seen corresponding path program 2 times [2024-11-24 00:04:40,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:40,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957102273] [2024-11-24 00:04:40,926 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:04:40,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:40,959 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 00:04:40,959 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:04:41,043 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-24 00:04:41,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:41,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957102273] [2024-11-24 00:04:41,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957102273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:41,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:41,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:04:41,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909698437] [2024-11-24 00:04:41,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:41,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:04:41,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:41,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:04:41,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:04:41,045 INFO L87 Difference]: Start difference. First operand 485 states and 766 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:04:41,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:41,125 INFO L93 Difference]: Finished difference Result 958 states and 1525 transitions. [2024-11-24 00:04:41,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:04:41,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 105 [2024-11-24 00:04:41,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:41,132 INFO L225 Difference]: With dead ends: 958 [2024-11-24 00:04:41,135 INFO L226 Difference]: Without dead ends: 889 [2024-11-24 00:04:41,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:04:41,137 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 301 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:41,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 1248 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:41,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2024-11-24 00:04:41,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 485. [2024-11-24 00:04:41,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 380 states have (on average 1.5789473684210527) internal successors, (600), 384 states have internal predecessors, (600), 80 states have call successors, (80), 24 states have call predecessors, (80), 24 states have return successors, (86), 76 states have call predecessors, (86), 79 states have call successors, (86) [2024-11-24 00:04:41,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 766 transitions. [2024-11-24 00:04:41,184 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 766 transitions. Word has length 105 [2024-11-24 00:04:41,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:41,185 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 766 transitions. [2024-11-24 00:04:41,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:04:41,185 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 766 transitions. [2024-11-24 00:04:41,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-24 00:04:41,188 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:41,188 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:41,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:04:41,189 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:41,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:41,190 INFO L85 PathProgramCache]: Analyzing trace with hash -349152775, now seen corresponding path program 1 times [2024-11-24 00:04:41,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:41,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312480507] [2024-11-24 00:04:41,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:41,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:41,399 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-24 00:04:41,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:41,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312480507] [2024-11-24 00:04:41,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312480507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:41,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:41,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:04:41,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124619344] [2024-11-24 00:04:41,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:41,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:04:41,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:41,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:04:41,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:04:41,405 INFO L87 Difference]: Start difference. First operand 485 states and 766 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-24 00:04:41,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:41,654 INFO L93 Difference]: Finished difference Result 948 states and 1507 transitions. [2024-11-24 00:04:41,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:04:41,655 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 113 [2024-11-24 00:04:41,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:41,660 INFO L225 Difference]: With dead ends: 948 [2024-11-24 00:04:41,660 INFO L226 Difference]: Without dead ends: 490 [2024-11-24 00:04:41,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:04:41,664 INFO L435 NwaCegarLoop]: 326 mSDtfsCounter, 5 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2253 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:41,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2253 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:04:41,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-24 00:04:41,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 488. [2024-11-24 00:04:41,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 382 states have (on average 1.5759162303664922) internal successors, (602), 387 states have internal predecessors, (602), 80 states have call successors, (80), 24 states have call predecessors, (80), 25 states have return successors, (91), 76 states have call predecessors, (91), 79 states have call successors, (91) [2024-11-24 00:04:41,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 773 transitions. [2024-11-24 00:04:41,718 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 773 transitions. Word has length 113 [2024-11-24 00:04:41,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:41,719 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 773 transitions. [2024-11-24 00:04:41,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-24 00:04:41,720 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 773 transitions. [2024-11-24 00:04:41,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-24 00:04:41,723 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:41,723 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:41,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:04:41,723 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:41,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:41,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2054705947, now seen corresponding path program 1 times [2024-11-24 00:04:41,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:41,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277581183] [2024-11-24 00:04:41,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:41,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:41,814 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 00:04:41,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:41,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277581183] [2024-11-24 00:04:41,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277581183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:41,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:41,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:04:41,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725849984] [2024-11-24 00:04:41,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:41,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:04:41,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:41,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:04:41,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:41,816 INFO L87 Difference]: Start difference. First operand 488 states and 773 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:41,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:41,873 INFO L93 Difference]: Finished difference Result 1195 states and 1941 transitions. [2024-11-24 00:04:41,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:04:41,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-11-24 00:04:41,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:41,879 INFO L225 Difference]: With dead ends: 1195 [2024-11-24 00:04:41,879 INFO L226 Difference]: Without dead ends: 740 [2024-11-24 00:04:41,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:41,882 INFO L435 NwaCegarLoop]: 360 mSDtfsCounter, 105 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:41,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 700 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:41,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2024-11-24 00:04:41,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 730. [2024-11-24 00:04:41,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 574 states have (on average 1.6062717770034842) internal successors, (922), 579 states have internal predecessors, (922), 130 states have call successors, (130), 24 states have call predecessors, (130), 25 states have return successors, (145), 126 states have call predecessors, (145), 129 states have call successors, (145) [2024-11-24 00:04:41,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1197 transitions. [2024-11-24 00:04:41,967 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1197 transitions. Word has length 114 [2024-11-24 00:04:41,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:41,968 INFO L471 AbstractCegarLoop]: Abstraction has 730 states and 1197 transitions. [2024-11-24 00:04:41,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:41,968 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1197 transitions. [2024-11-24 00:04:41,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-24 00:04:41,974 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:41,974 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:41,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:04:41,974 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:41,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:41,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1844953411, now seen corresponding path program 1 times [2024-11-24 00:04:41,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:41,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816679603] [2024-11-24 00:04:41,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:41,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:42,062 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 00:04:42,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:42,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816679603] [2024-11-24 00:04:42,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816679603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:42,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:42,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:04:42,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881942138] [2024-11-24 00:04:42,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:42,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:04:42,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:42,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:04:42,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:42,065 INFO L87 Difference]: Start difference. First operand 730 states and 1197 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:42,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:42,151 INFO L93 Difference]: Finished difference Result 1901 states and 3173 transitions. [2024-11-24 00:04:42,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:04:42,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-11-24 00:04:42,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:42,163 INFO L225 Difference]: With dead ends: 1901 [2024-11-24 00:04:42,163 INFO L226 Difference]: Without dead ends: 1204 [2024-11-24 00:04:42,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:42,169 INFO L435 NwaCegarLoop]: 341 mSDtfsCounter, 103 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:42,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 674 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:42,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2024-11-24 00:04:42,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1194. [2024-11-24 00:04:42,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1194 states, 946 states have (on average 1.6300211416490487) internal successors, (1542), 951 states have internal predecessors, (1542), 222 states have call successors, (222), 24 states have call predecessors, (222), 25 states have return successors, (237), 218 states have call predecessors, (237), 221 states have call successors, (237) [2024-11-24 00:04:42,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 2001 transitions. [2024-11-24 00:04:42,275 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 2001 transitions. Word has length 115 [2024-11-24 00:04:42,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:42,275 INFO L471 AbstractCegarLoop]: Abstraction has 1194 states and 2001 transitions. [2024-11-24 00:04:42,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:42,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 2001 transitions. [2024-11-24 00:04:42,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:04:42,282 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:42,282 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:42,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:04:42,282 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:42,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:42,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1101536800, now seen corresponding path program 1 times [2024-11-24 00:04:42,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:42,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175045434] [2024-11-24 00:04:42,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:42,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:42,468 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 00:04:42,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:42,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175045434] [2024-11-24 00:04:42,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175045434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:42,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398739308] [2024-11-24 00:04:42,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:42,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:42,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:42,471 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:42,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:04:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:42,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:04:42,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:42,855 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 00:04:42,856 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:42,971 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 00:04:42,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398739308] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:04:42,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:04:42,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-24 00:04:42,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118491088] [2024-11-24 00:04:42,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:04:42,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:04:42,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:42,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:04:42,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:04:42,974 INFO L87 Difference]: Start difference. First operand 1194 states and 2001 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 00:04:43,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:43,320 INFO L93 Difference]: Finished difference Result 2471 states and 4169 transitions. [2024-11-24 00:04:43,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:04:43,321 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 107 [2024-11-24 00:04:43,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:43,338 INFO L225 Difference]: With dead ends: 2471 [2024-11-24 00:04:43,339 INFO L226 Difference]: Without dead ends: 2370 [2024-11-24 00:04:43,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:04:43,342 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 315 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:43,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1671 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:04:43,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2024-11-24 00:04:43,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 2342. [2024-11-24 00:04:43,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2342 states, 1876 states have (on average 1.6321961620469083) internal successors, (3062), 1881 states have internal predecessors, (3062), 440 states have call successors, (440), 24 states have call predecessors, (440), 25 states have return successors, (471), 436 states have call predecessors, (471), 439 states have call successors, (471) [2024-11-24 00:04:43,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2342 states to 2342 states and 3973 transitions. [2024-11-24 00:04:43,535 INFO L78 Accepts]: Start accepts. Automaton has 2342 states and 3973 transitions. Word has length 107 [2024-11-24 00:04:43,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:43,537 INFO L471 AbstractCegarLoop]: Abstraction has 2342 states and 3973 transitions. [2024-11-24 00:04:43,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 00:04:43,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2342 states and 3973 transitions. [2024-11-24 00:04:43,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-24 00:04:43,553 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:43,553 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:43,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-24 00:04:43,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efea801f-e33a-474f-995a-30934cf752b0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-24 00:04:43,754 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:43,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:43,755 INFO L85 PathProgramCache]: Analyzing trace with hash -828650184, now seen corresponding path program 1 times [2024-11-24 00:04:43,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:43,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836940955] [2024-11-24 00:04:43,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:43,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:43,859 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 00:04:43,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:43,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836940955] [2024-11-24 00:04:43,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836940955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:43,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:43,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:04:43,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392817672] [2024-11-24 00:04:43,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:43,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:04:43,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:43,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:04:43,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:43,862 INFO L87 Difference]: Start difference. First operand 2342 states and 3973 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:44,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:44,126 INFO L93 Difference]: Finished difference Result 5711 states and 9745 transitions. [2024-11-24 00:04:44,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:04:44,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2024-11-24 00:04:44,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:44,160 INFO L225 Difference]: With dead ends: 5711 [2024-11-24 00:04:44,161 INFO L226 Difference]: Without dead ends: 3610 [2024-11-24 00:04:44,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:44,174 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 101 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:44,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 669 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:44,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2024-11-24 00:04:44,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 3600. [2024-11-24 00:04:44,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 2928 states have (on average 1.6369535519125684) internal successors, (4793), 2933 states have internal predecessors, (4793), 646 states have call successors, (646), 24 states have call predecessors, (646), 25 states have return successors, (693), 642 states have call predecessors, (693), 645 states have call successors, (693) [2024-11-24 00:04:44,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 6132 transitions. [2024-11-24 00:04:44,478 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 6132 transitions. Word has length 116 [2024-11-24 00:04:44,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:44,478 INFO L471 AbstractCegarLoop]: Abstraction has 3600 states and 6132 transitions. [2024-11-24 00:04:44,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:44,479 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 6132 transitions. [2024-11-24 00:04:44,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-24 00:04:44,496 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:44,497 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:44,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:04:44,497 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:44,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:44,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1212762855, now seen corresponding path program 1 times [2024-11-24 00:04:44,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:44,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644730386] [2024-11-24 00:04:44,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:44,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 00:04:44,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:44,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644730386] [2024-11-24 00:04:44,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644730386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:44,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:44,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:04:44,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659272607] [2024-11-24 00:04:44,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:44,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:04:44,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:44,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:04:44,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:44,585 INFO L87 Difference]: Start difference. First operand 3600 states and 6132 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:44,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:44,867 INFO L93 Difference]: Finished difference Result 8860 states and 15170 transitions. [2024-11-24 00:04:44,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:04:44,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2024-11-24 00:04:44,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:44,900 INFO L225 Difference]: With dead ends: 8860 [2024-11-24 00:04:44,900 INFO L226 Difference]: Without dead ends: 5698 [2024-11-24 00:04:44,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:44,913 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 99 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:44,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 669 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:44,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5698 states. [2024-11-24 00:04:45,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5698 to 5688. [2024-11-24 00:04:45,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5688 states, 4706 states have (on average 1.641308967275818) internal successors, (7724), 4711 states have internal predecessors, (7724), 956 states have call successors, (956), 24 states have call predecessors, (956), 25 states have return successors, (1029), 952 states have call predecessors, (1029), 955 states have call successors, (1029) [2024-11-24 00:04:45,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5688 states to 5688 states and 9709 transitions. [2024-11-24 00:04:45,354 INFO L78 Accepts]: Start accepts. Automaton has 5688 states and 9709 transitions. Word has length 117 [2024-11-24 00:04:45,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:45,355 INFO L471 AbstractCegarLoop]: Abstraction has 5688 states and 9709 transitions. [2024-11-24 00:04:45,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:45,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5688 states and 9709 transitions. [2024-11-24 00:04:45,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:04:45,387 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:45,387 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:45,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:04:45,388 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:45,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:45,388 INFO L85 PathProgramCache]: Analyzing trace with hash 341785716, now seen corresponding path program 1 times [2024-11-24 00:04:45,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:45,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971078921] [2024-11-24 00:04:45,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:45,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:45,467 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 00:04:45,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:45,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971078921] [2024-11-24 00:04:45,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971078921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:45,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:45,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:04:45,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110532377] [2024-11-24 00:04:45,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:45,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:04:45,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:45,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:04:45,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:45,469 INFO L87 Difference]: Start difference. First operand 5688 states and 9709 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:46,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:46,010 INFO L93 Difference]: Finished difference Result 13889 states and 23871 transitions. [2024-11-24 00:04:46,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:04:46,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2024-11-24 00:04:46,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:46,104 INFO L225 Difference]: With dead ends: 13889 [2024-11-24 00:04:46,104 INFO L226 Difference]: Without dead ends: 9377 [2024-11-24 00:04:46,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:46,127 INFO L435 NwaCegarLoop]: 354 mSDtfsCounter, 97 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:46,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 684 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:46,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9377 states. [2024-11-24 00:04:46,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9377 to 9367. [2024-11-24 00:04:46,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9367 states, 7683 states have (on average 1.6388129636860602) internal successors, (12591), 7688 states have internal predecessors, (12591), 1658 states have call successors, (1658), 24 states have call predecessors, (1658), 25 states have return successors, (1775), 1654 states have call predecessors, (1775), 1657 states have call successors, (1775) [2024-11-24 00:04:46,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9367 states to 9367 states and 16024 transitions. [2024-11-24 00:04:46,836 INFO L78 Accepts]: Start accepts. Automaton has 9367 states and 16024 transitions. Word has length 118 [2024-11-24 00:04:46,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:46,837 INFO L471 AbstractCegarLoop]: Abstraction has 9367 states and 16024 transitions. [2024-11-24 00:04:46,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:46,838 INFO L276 IsEmpty]: Start isEmpty. Operand 9367 states and 16024 transitions. [2024-11-24 00:04:46,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:04:46,866 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:46,866 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:46,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:04:46,866 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:46,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:46,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1602725411, now seen corresponding path program 1 times [2024-11-24 00:04:46,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:46,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391033170] [2024-11-24 00:04:46,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:46,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:46,942 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 00:04:46,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:46,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391033170] [2024-11-24 00:04:46,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391033170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:46,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:46,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:04:46,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276437398] [2024-11-24 00:04:46,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:46,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:04:46,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:46,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:04:46,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:46,947 INFO L87 Difference]: Start difference. First operand 9367 states and 16024 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:47,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:47,524 INFO L93 Difference]: Finished difference Result 24058 states and 41350 transitions. [2024-11-24 00:04:47,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:04:47,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2024-11-24 00:04:47,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:47,624 INFO L225 Difference]: With dead ends: 24058 [2024-11-24 00:04:47,624 INFO L226 Difference]: Without dead ends: 16168 [2024-11-24 00:04:47,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:47,661 INFO L435 NwaCegarLoop]: 341 mSDtfsCounter, 95 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:47,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 674 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:47,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16168 states. [2024-11-24 00:04:49,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16168 to 16158. [2024-11-24 00:04:49,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16158 states, 13330 states have (on average 1.6349587396849212) internal successors, (21794), 13335 states have internal predecessors, (21794), 2802 states have call successors, (2802), 24 states have call predecessors, (2802), 25 states have return successors, (2997), 2798 states have call predecessors, (2997), 2801 states have call successors, (2997) [2024-11-24 00:04:49,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16158 states to 16158 states and 27593 transitions. [2024-11-24 00:04:49,243 INFO L78 Accepts]: Start accepts. Automaton has 16158 states and 27593 transitions. Word has length 119 [2024-11-24 00:04:49,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:49,244 INFO L471 AbstractCegarLoop]: Abstraction has 16158 states and 27593 transitions. [2024-11-24 00:04:49,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:49,244 INFO L276 IsEmpty]: Start isEmpty. Operand 16158 states and 27593 transitions. [2024-11-24 00:04:49,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-24 00:04:49,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:49,281 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:49,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:04:49,281 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:49,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:49,282 INFO L85 PathProgramCache]: Analyzing trace with hash 81442658, now seen corresponding path program 1 times [2024-11-24 00:04:49,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:49,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935748468] [2024-11-24 00:04:49,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:49,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:49,355 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 00:04:49,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:49,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935748468] [2024-11-24 00:04:49,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935748468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:49,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:49,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:04:49,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558384601] [2024-11-24 00:04:49,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:49,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:04:49,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:49,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:04:49,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:49,358 INFO L87 Difference]: Start difference. First operand 16158 states and 27593 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:50,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:50,377 INFO L93 Difference]: Finished difference Result 43362 states and 74240 transitions. [2024-11-24 00:04:50,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:04:50,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2024-11-24 00:04:50,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:50,530 INFO L225 Difference]: With dead ends: 43362 [2024-11-24 00:04:50,530 INFO L226 Difference]: Without dead ends: 29269 [2024-11-24 00:04:50,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:50,587 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 93 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:50,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 675 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:50,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29269 states. [2024-11-24 00:04:52,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29269 to 29259. [2024-11-24 00:04:52,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29259 states, 24112 states have (on average 1.6238802256138023) internal successors, (39155), 24117 states have internal predecessors, (39155), 5121 states have call successors, (5121), 24 states have call predecessors, (5121), 25 states have return successors, (5460), 5117 states have call predecessors, (5460), 5120 states have call successors, (5460) [2024-11-24 00:04:52,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29259 states to 29259 states and 49736 transitions. [2024-11-24 00:04:52,651 INFO L78 Accepts]: Start accepts. Automaton has 29259 states and 49736 transitions. Word has length 120 [2024-11-24 00:04:52,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:52,652 INFO L471 AbstractCegarLoop]: Abstraction has 29259 states and 49736 transitions. [2024-11-24 00:04:52,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:52,652 INFO L276 IsEmpty]: Start isEmpty. Operand 29259 states and 49736 transitions. [2024-11-24 00:04:52,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 00:04:52,718 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:52,718 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:52,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:04:52,719 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:52,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:52,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1453306334, now seen corresponding path program 1 times [2024-11-24 00:04:52,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:52,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156536975] [2024-11-24 00:04:52,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:52,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:52,821 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 00:04:52,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:52,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156536975] [2024-11-24 00:04:52,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156536975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:52,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:52,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:04:52,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696639933] [2024-11-24 00:04:52,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:52,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:04:52,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:52,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:04:52,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:52,825 INFO L87 Difference]: Start difference. First operand 29259 states and 49736 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:54,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:54,709 INFO L93 Difference]: Finished difference Result 79814 states and 136116 transitions. [2024-11-24 00:04:54,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:04:54,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2024-11-24 00:04:54,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:55,024 INFO L225 Difference]: With dead ends: 79814 [2024-11-24 00:04:55,025 INFO L226 Difference]: Without dead ends: 53439 [2024-11-24 00:04:55,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:55,131 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 91 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:55,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 672 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:55,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53439 states. [2024-11-24 00:04:58,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53439 to 53429. [2024-11-24 00:04:58,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53429 states, 44297 states have (on average 1.6184165970607491) internal successors, (71691), 44302 states have internal predecessors, (71691), 9106 states have call successors, (9106), 24 states have call predecessors, (9106), 25 states have return successors, (9719), 9102 states have call predecessors, (9719), 9105 states have call successors, (9719) [2024-11-24 00:04:58,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53429 states to 53429 states and 90516 transitions. [2024-11-24 00:04:58,926 INFO L78 Accepts]: Start accepts. Automaton has 53429 states and 90516 transitions. Word has length 121 [2024-11-24 00:04:58,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:58,927 INFO L471 AbstractCegarLoop]: Abstraction has 53429 states and 90516 transitions. [2024-11-24 00:04:58,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:04:58,927 INFO L276 IsEmpty]: Start isEmpty. Operand 53429 states and 90516 transitions. [2024-11-24 00:04:58,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-24 00:04:58,994 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:58,995 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:58,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:04:58,995 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:58,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:58,996 INFO L85 PathProgramCache]: Analyzing trace with hash 438859460, now seen corresponding path program 1 times [2024-11-24 00:04:58,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:58,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42333983] [2024-11-24 00:04:58,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:58,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:59,097 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 00:04:59,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:59,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42333983] [2024-11-24 00:04:59,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42333983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:59,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:59,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:04:59,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329739860] [2024-11-24 00:04:59,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:59,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:04:59,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:59,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:04:59,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:59,100 INFO L87 Difference]: Start difference. First operand 53429 states and 90516 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:05:02,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:02,609 INFO L93 Difference]: Finished difference Result 149039 states and 253129 transitions. [2024-11-24 00:05:02,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:05:02,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-11-24 00:05:02,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:03,165 INFO L225 Difference]: With dead ends: 149039 [2024-11-24 00:05:03,165 INFO L226 Difference]: Without dead ends: 99451 [2024-11-24 00:05:03,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:05:03,309 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 89 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:03,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 673 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:05:03,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99451 states. [2024-11-24 00:05:07,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99451 to 99441. [2024-11-24 00:05:07,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99441 states, 82984 states have (on average 1.6117082811144317) internal successors, (133746), 82989 states have internal predecessors, (133746), 16431 states have call successors, (16431), 24 states have call predecessors, (16431), 25 states have return successors, (17576), 16427 states have call predecessors, (17576), 16430 states have call successors, (17576) [2024-11-24 00:05:08,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99441 states to 99441 states and 167753 transitions. [2024-11-24 00:05:08,579 INFO L78 Accepts]: Start accepts. Automaton has 99441 states and 167753 transitions. Word has length 122 [2024-11-24 00:05:08,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:08,579 INFO L471 AbstractCegarLoop]: Abstraction has 99441 states and 167753 transitions. [2024-11-24 00:05:08,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:05:08,580 INFO L276 IsEmpty]: Start isEmpty. Operand 99441 states and 167753 transitions. [2024-11-24 00:05:08,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-24 00:05:08,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:08,624 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:05:08,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:05:08,624 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:05:08,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:08,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1947469054, now seen corresponding path program 1 times [2024-11-24 00:05:08,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:05:08,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912216591] [2024-11-24 00:05:08,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:08,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:05:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:05:08,697 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 00:05:08,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:05:08,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912216591] [2024-11-24 00:05:08,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912216591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:05:08,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:05:08,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:05:08,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136840299] [2024-11-24 00:05:08,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:05:08,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:05:08,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:05:08,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:05:08,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:05:08,699 INFO L87 Difference]: Start difference. First operand 99441 states and 167753 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:05:13,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:13,470 INFO L93 Difference]: Finished difference Result 186620 states and 315322 transitions. [2024-11-24 00:05:13,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:05:13,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2024-11-24 00:05:13,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:14,460 INFO L225 Difference]: With dead ends: 186620 [2024-11-24 00:05:14,461 INFO L226 Difference]: Without dead ends: 186519 [2024-11-24 00:05:14,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:05:14,549 INFO L435 NwaCegarLoop]: 348 mSDtfsCounter, 84 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:14,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 686 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:05:14,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186519 states.