./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec3_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec3_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd --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 0eb0a93133a0d165b4e13ef7269be4b8c3f0f81976a167102da919b09b6c6616 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:04:53,994 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:04:54,083 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:04:54,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:04:54,091 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:04:54,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:04:54,117 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:04:54,117 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:04:54,117 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:04:54,118 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:04:54,118 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:04:54,118 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:04:54,118 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:04:54,119 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:04:54,119 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:04:54,119 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:04:54,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:04:54,119 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:04:54,119 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:04:54,120 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:04:54,120 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:04:54,120 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:04:54,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:04:54,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:04:54,120 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:04:54,120 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:04:54,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:04:54,121 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:04:54,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:04:54,121 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:04:54,121 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:04:54,121 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:04:54,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:04:54,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:04:54,122 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:04:54,122 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:04:54,122 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:04:54,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:04:54,122 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:04:54,122 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:04:54,122 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:04:54,123 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:04:54,123 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_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd 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 -> 0eb0a93133a0d165b4e13ef7269be4b8c3f0f81976a167102da919b09b6c6616 [2024-11-13 14:04:54,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:04:54,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:04:54,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:04:54,424 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:04:54,425 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:04:54,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/product-lines/email_spec3_product19.cil.c Unable to find full path for "g++" [2024-11-13 14:04:56,348 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:04:56,785 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:04:56,787 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/sv-benchmarks/c/product-lines/email_spec3_product19.cil.c [2024-11-13 14:04:56,816 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/data/19d64af23/8ed94ece11f44fbd9178da733901b826/FLAG72966d8c4 [2024-11-13 14:04:56,841 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/data/19d64af23/8ed94ece11f44fbd9178da733901b826 [2024-11-13 14:04:56,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:04:56,845 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:04:56,848 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:04:56,848 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:04:56,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:04:56,855 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:04:56" (1/1) ... [2024-11-13 14:04:56,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f17a505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:56, skipping insertion in model container [2024-11-13 14:04:56,857 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:04:56" (1/1) ... [2024-11-13 14:04:56,941 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:04:57,301 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_4f921994-5f7d-42e5-a258-7dc7198bd7a7/sv-benchmarks/c/product-lines/email_spec3_product19.cil.c[8336,8349] [2024-11-13 14:04:57,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:04:57,685 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:04:57,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2024-11-13 14:04:57,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [66] [2024-11-13 14:04:57,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [115] [2024-11-13 14:04:57,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [431] [2024-11-13 14:04:57,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [440] [2024-11-13 14:04:57,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [498] [2024-11-13 14:04:57,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [723] [2024-11-13 14:04:57,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [821] [2024-11-13 14:04:57,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1895] [2024-11-13 14:04:57,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2170] [2024-11-13 14:04:57,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2571] [2024-11-13 14:04:57,735 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_4f921994-5f7d-42e5-a258-7dc7198bd7a7/sv-benchmarks/c/product-lines/email_spec3_product19.cil.c[8336,8349] [2024-11-13 14:04:57,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:04:57,891 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:04:57,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:57 WrapperNode [2024-11-13 14:04:57,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:04:57,893 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:04:57,893 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:04:57,893 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:04:57,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:57" (1/1) ... [2024-11-13 14:04:57,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:57" (1/1) ... [2024-11-13 14:04:57,976 INFO L138 Inliner]: procedures = 128, calls = 192, calls flagged for inlining = 58, calls inlined = 53, statements flattened = 978 [2024-11-13 14:04:57,977 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:04:57,977 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:04:57,977 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:04:57,978 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:04:57,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:57" (1/1) ... [2024-11-13 14:04:57,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:57" (1/1) ... [2024-11-13 14:04:57,995 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:57" (1/1) ... [2024-11-13 14:04:58,040 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]. [2024-11-13 14:04:58,040 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:57" (1/1) ... [2024-11-13 14:04:58,041 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:57" (1/1) ... [2024-11-13 14:04:58,065 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:57" (1/1) ... [2024-11-13 14:04:58,074 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:57" (1/1) ... [2024-11-13 14:04:58,078 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:57" (1/1) ... [2024-11-13 14:04:58,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:57" (1/1) ... [2024-11-13 14:04:58,087 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:04:58,088 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:04:58,088 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:04:58,088 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:04:58,089 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:57" (1/1) ... [2024-11-13 14:04:58,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:04:58,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:58,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:04:58,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:04:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-13 14:04:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-13 14:04:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-13 14:04:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-13 14:04:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-13 14:04:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-13 14:04:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-13 14:04:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-13 14:04:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-13 14:04:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-13 14:04:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-13 14:04:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-13 14:04:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-13 14:04:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-13 14:04:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-13 14:04:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-13 14:04:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:04:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-13 14:04:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-13 14:04:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-13 14:04:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-13 14:04:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-13 14:04:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-13 14:04:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-13 14:04:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-13 14:04:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-13 14:04:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-13 14:04:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-13 14:04:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-13 14:04:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-13 14:04:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-13 14:04:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-13 14:04:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-13 14:04:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-13 14:04:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-13 14:04:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-13 14:04:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-13 14:04:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:04:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 14:04:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 14:04:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 14:04:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-13 14:04:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-13 14:04:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:04:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:04:58,435 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:04:58,437 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:04:59,602 INFO L? ?]: Removed 433 outVars from TransFormulas that were not future-live. [2024-11-13 14:04:59,602 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:04:59,629 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:04:59,630 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:04:59,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:04:59 BoogieIcfgContainer [2024-11-13 14:04:59,630 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:04:59,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:04:59,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:04:59,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:04:59,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:04:56" (1/3) ... [2024-11-13 14:04:59,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afb7c4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:04:59, skipping insertion in model container [2024-11-13 14:04:59,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:57" (2/3) ... [2024-11-13 14:04:59,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afb7c4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:04:59, skipping insertion in model container [2024-11-13 14:04:59,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:04:59" (3/3) ... [2024-11-13 14:04:59,643 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product19.cil.c [2024-11-13 14:04:59,660 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:04:59,667 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec3_product19.cil.c that has 20 procedures, 323 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:04:59,759 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:04:59,803 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;@3991cce6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:04:59,803 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:04:59,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 323 states, 252 states have (on average 1.5198412698412698) internal successors, (383), 256 states have internal predecessors, (383), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-13 14:04:59,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 14:04:59,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:59,833 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:04:59,833 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:04:59,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:59,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1906950186, now seen corresponding path program 1 times [2024-11-13 14:04:59,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:59,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926374987] [2024-11-13 14:04:59,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:59,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:00,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:00,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:00,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:01,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 14:05:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:01,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 14:05:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:01,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:05:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:01,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:05:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:01,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-13 14:05:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:01,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 14:05:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:01,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 14:05:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:01,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:05:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:01,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 14:05:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:01,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 14:05:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:01,117 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 14:05:01,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:01,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926374987] [2024-11-13 14:05:01,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926374987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:05:01,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325270661] [2024-11-13 14:05:01,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:01,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:01,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:05:01,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:05:01,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:05:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:01,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 14:05:01,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:05:01,669 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 14:05:01,669 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:05:01,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325270661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:01,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:05:01,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-13 14:05:01,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621056559] [2024-11-13 14:05:01,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:01,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:05:01,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:01,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:05:01,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:05:01,719 INFO L87 Difference]: Start difference. First operand has 323 states, 252 states have (on average 1.5198412698412698) internal successors, (383), 256 states have internal predecessors, (383), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:01,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:01,795 INFO L93 Difference]: Finished difference Result 491 states and 720 transitions. [2024-11-13 14:05:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:05:01,798 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 103 [2024-11-13 14:05:01,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:01,810 INFO L225 Difference]: With dead ends: 491 [2024-11-13 14:05:01,810 INFO L226 Difference]: Without dead ends: 315 [2024-11-13 14:05:01,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:05:01,819 INFO L432 NwaCegarLoop]: 477 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, 477 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 [2024-11-13 14:05:01,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:05:01,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-13 14:05:01,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2024-11-13 14:05:01,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 246 states have (on average 1.5121951219512195) internal successors, (372), 248 states have internal predecessors, (372), 50 states have call successors, (50), 19 states have call predecessors, (50), 18 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-13 14:05:01,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 469 transitions. [2024-11-13 14:05:01,889 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 469 transitions. Word has length 103 [2024-11-13 14:05:01,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:01,891 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 469 transitions. [2024-11-13 14:05:01,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:01,891 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 469 transitions. [2024-11-13 14:05:01,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 14:05:01,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:01,897 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:05:01,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:05:02,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:02,098 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:02,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:02,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1459860407, now seen corresponding path program 1 times [2024-11-13 14:05:02,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:02,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790775100] [2024-11-13 14:05:02,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:02,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:02,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:02,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:02,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:02,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 14:05:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:02,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 14:05:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:02,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:05:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:02,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 14:05:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:02,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:05:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:02,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 14:05:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:02,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 14:05:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:02,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 14:05:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:02,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 14:05:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:02,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 14:05:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:02,689 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 14:05:02,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:02,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790775100] [2024-11-13 14:05:02,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790775100] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:05:02,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685748067] [2024-11-13 14:05:02,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:02,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:02,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:05:02,696 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:05:02,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:05:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:03,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:05:03,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:05:03,158 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 14:05:03,159 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:05:03,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685748067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:03,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:05:03,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-13 14:05:03,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313607590] [2024-11-13 14:05:03,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:03,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:05:03,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:03,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:05:03,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:05:03,162 INFO L87 Difference]: Start difference. First operand 315 states and 469 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:03,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:03,214 INFO L93 Difference]: Finished difference Result 480 states and 697 transitions. [2024-11-13 14:05:03,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:05:03,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2024-11-13 14:05:03,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:03,219 INFO L225 Difference]: With dead ends: 480 [2024-11-13 14:05:03,221 INFO L226 Difference]: Without dead ends: 318 [2024-11-13 14:05:03,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:05:03,228 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 1 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 932 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 [2024-11-13 14:05:03,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 932 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:05:03,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-13 14:05:03,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 317. [2024-11-13 14:05:03,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 248 states have (on average 1.5080645161290323) internal successors, (374), 250 states have internal predecessors, (374), 50 states have call successors, (50), 19 states have call predecessors, (50), 18 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-13 14:05:03,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 471 transitions. [2024-11-13 14:05:03,303 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 471 transitions. Word has length 104 [2024-11-13 14:05:03,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:03,303 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 471 transitions. [2024-11-13 14:05:03,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:03,304 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 471 transitions. [2024-11-13 14:05:03,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-13 14:05:03,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:03,307 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:05:03,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 14:05:03,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:03,512 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:03,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:03,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1037156544, now seen corresponding path program 1 times [2024-11-13 14:05:03,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:03,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981692404] [2024-11-13 14:05:03,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:03,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:03,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:03,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:03,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:03,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 14:05:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:03,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 14:05:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:03,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:05:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:03,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 14:05:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:03,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:05:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:03,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 14:05:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:03,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:05:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:03,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 14:05:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:03,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 14:05:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:03,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:05:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:03,969 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:05:03,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:03,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981692404] [2024-11-13 14:05:03,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981692404] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:05:03,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607525246] [2024-11-13 14:05:03,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:03,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:03,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:05:03,976 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:05:03,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:05:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:04,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 1035 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:05:04,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:05:04,398 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 14:05:04,398 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:05:04,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607525246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:04,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:05:04,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-13 14:05:04,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347331495] [2024-11-13 14:05:04,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:04,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:05:04,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:04,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:05:04,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:05:04,403 INFO L87 Difference]: Start difference. First operand 317 states and 471 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:04,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:04,465 INFO L93 Difference]: Finished difference Result 664 states and 1001 transitions. [2024-11-13 14:05:04,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:05:04,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 110 [2024-11-13 14:05:04,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:04,474 INFO L225 Difference]: With dead ends: 664 [2024-11-13 14:05:04,477 INFO L226 Difference]: Without dead ends: 374 [2024-11-13 14:05:04,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:05:04,480 INFO L432 NwaCegarLoop]: 478 mSDtfsCounter, 107 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 899 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 [2024-11-13 14:05:04,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 899 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:05:04,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-13 14:05:04,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 366. [2024-11-13 14:05:04,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 286 states have (on average 1.5244755244755244) internal successors, (436), 288 states have internal predecessors, (436), 61 states have call successors, (61), 19 states have call predecessors, (61), 18 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-13 14:05:04,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 555 transitions. [2024-11-13 14:05:04,512 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 555 transitions. Word has length 110 [2024-11-13 14:05:04,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:04,513 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 555 transitions. [2024-11-13 14:05:04,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:04,513 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 555 transitions. [2024-11-13 14:05:04,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 14:05:04,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:04,516 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:05:04,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 14:05:04,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-13 14:05:04,720 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:04,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:04,720 INFO L85 PathProgramCache]: Analyzing trace with hash -462885987, now seen corresponding path program 1 times [2024-11-13 14:05:04,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:04,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032437155] [2024-11-13 14:05:04,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:04,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:04,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:04,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:04,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:04,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 14:05:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:04,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 14:05:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:04,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:05:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:04,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:05:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:04,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:05:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:05,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 14:05:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:05,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 14:05:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:05,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 14:05:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:05,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 14:05:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:05,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:05:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:05,019 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:05:05,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:05,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032437155] [2024-11-13 14:05:05,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032437155] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:05:05,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145905121] [2024-11-13 14:05:05,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:05,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:05,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:05:05,023 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:05:05,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 14:05:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:05,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 14:05:05,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:05:05,517 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 14:05:05,517 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:05:05,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145905121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:05,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:05:05,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-13 14:05:05,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450179565] [2024-11-13 14:05:05,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:05,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:05:05,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:05,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:05:05,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:05:05,520 INFO L87 Difference]: Start difference. First operand 366 states and 555 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 14:05:05,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:05,620 INFO L93 Difference]: Finished difference Result 723 states and 1100 transitions. [2024-11-13 14:05:05,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:05:05,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2024-11-13 14:05:05,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:05,627 INFO L225 Difference]: With dead ends: 723 [2024-11-13 14:05:05,629 INFO L226 Difference]: Without dead ends: 368 [2024-11-13 14:05:05,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:05:05,632 INFO L432 NwaCegarLoop]: 461 mSDtfsCounter, 2 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1833 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 [2024-11-13 14:05:05,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1833 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:05:05,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-13 14:05:05,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2024-11-13 14:05:05,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 287 states have (on average 1.5226480836236933) internal successors, (437), 290 states have internal predecessors, (437), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (60), 58 states have call predecessors, (60), 58 states have call successors, (60) [2024-11-13 14:05:05,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 558 transitions. [2024-11-13 14:05:05,677 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 558 transitions. Word has length 111 [2024-11-13 14:05:05,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:05,678 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 558 transitions. [2024-11-13 14:05:05,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 14:05:05,678 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 558 transitions. [2024-11-13 14:05:05,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-13 14:05:05,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:05,685 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2024-11-13 14:05:05,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 14:05:05,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:05,891 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:05,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:05,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1793985013, now seen corresponding path program 1 times [2024-11-13 14:05:05,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:05,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805098696] [2024-11-13 14:05:05,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:05,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:06,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:06,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:06,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:06,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:05:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:06,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-13 14:05:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:06,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:05:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:06,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 14:05:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:06,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-13 14:05:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:06,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 14:05:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:06,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 14:05:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:06,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:05:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:06,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 14:05:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:06,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-13 14:05:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:06,351 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 14:05:06,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:06,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805098696] [2024-11-13 14:05:06,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805098696] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:05:06,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543424026] [2024-11-13 14:05:06,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:06,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:06,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:05:06,354 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:05:06,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 14:05:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:06,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:05:06,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:05:06,785 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 14:05:06,785 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:05:06,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543424026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:06,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:05:06,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-13 14:05:06,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707027630] [2024-11-13 14:05:06,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:06,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:05:06,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:06,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:05:06,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:05:06,787 INFO L87 Difference]: Start difference. First operand 368 states and 558 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 14:05:06,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:06,875 INFO L93 Difference]: Finished difference Result 725 states and 1105 transitions. [2024-11-13 14:05:06,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:05:06,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2024-11-13 14:05:06,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:06,879 INFO L225 Difference]: With dead ends: 725 [2024-11-13 14:05:06,880 INFO L226 Difference]: Without dead ends: 370 [2024-11-13 14:05:06,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:05:06,882 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 2 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:06,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1819 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:05:06,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-13 14:05:06,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2024-11-13 14:05:06,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 288 states have (on average 1.5208333333333333) internal successors, (438), 292 states have internal predecessors, (438), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (65), 58 states have call predecessors, (65), 58 states have call successors, (65) [2024-11-13 14:05:06,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 564 transitions. [2024-11-13 14:05:06,915 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 564 transitions. Word has length 112 [2024-11-13 14:05:06,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:06,915 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 564 transitions. [2024-11-13 14:05:06,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 14:05:06,915 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 564 transitions. [2024-11-13 14:05:06,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:05:06,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:06,919 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:06,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 14:05:07,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:07,124 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:07,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:07,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1145233760, now seen corresponding path program 1 times [2024-11-13 14:05:07,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:07,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961636915] [2024-11-13 14:05:07,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:07,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:07,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:07,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:07,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:07,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:05:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:07,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:05:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:07,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 14:05:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:07,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 14:05:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:07,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:05:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:07,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:05:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:07,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:05:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:07,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 14:05:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:07,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 14:05:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:07,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 14:05:07,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:07,434 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:05:07,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:07,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961636915] [2024-11-13 14:05:07,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961636915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:07,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:05:07,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 14:05:07,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026951651] [2024-11-13 14:05:07,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:07,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:05:07,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:07,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:05:07,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:05:07,437 INFO L87 Difference]: Start difference. First operand 370 states and 564 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 14:05:10,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:10,421 INFO L93 Difference]: Finished difference Result 875 states and 1334 transitions. [2024-11-13 14:05:10,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:05:10,422 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2024-11-13 14:05:10,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:10,427 INFO L225 Difference]: With dead ends: 875 [2024-11-13 14:05:10,427 INFO L226 Difference]: Without dead ends: 528 [2024-11-13 14:05:10,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:05:10,433 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 998 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:10,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 1108 Invalid, 2777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [303 Valid, 2474 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-13 14:05:10,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-13 14:05:10,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 370. [2024-11-13 14:05:10,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 288 states have (on average 1.5208333333333333) internal successors, (438), 292 states have internal predecessors, (438), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (64), 58 states have call predecessors, (64), 58 states have call successors, (64) [2024-11-13 14:05:10,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 563 transitions. [2024-11-13 14:05:10,506 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 563 transitions. Word has length 113 [2024-11-13 14:05:10,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:10,506 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 563 transitions. [2024-11-13 14:05:10,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 14:05:10,507 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 563 transitions. [2024-11-13 14:05:10,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 14:05:10,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:10,510 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:10,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:05:10,510 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:10,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:10,511 INFO L85 PathProgramCache]: Analyzing trace with hash 596802540, now seen corresponding path program 2 times [2024-11-13 14:05:10,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:10,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231079704] [2024-11-13 14:05:10,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:10,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:10,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:10,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:10,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:10,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:05:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:10,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:05:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:10,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:05:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:10,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-13 14:05:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:10,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-13 14:05:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:10,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-13 14:05:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:10,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-13 14:05:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:10,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 14:05:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:10,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 14:05:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:10,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 14:05:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:10,804 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:05:10,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:10,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231079704] [2024-11-13 14:05:10,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231079704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:10,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:05:10,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 14:05:10,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392329139] [2024-11-13 14:05:10,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:10,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:05:10,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:10,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:05:10,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:05:10,807 INFO L87 Difference]: Start difference. First operand 370 states and 563 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 14:05:13,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:13,553 INFO L93 Difference]: Finished difference Result 877 states and 1337 transitions. [2024-11-13 14:05:13,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:05:13,554 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 114 [2024-11-13 14:05:13,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:13,558 INFO L225 Difference]: With dead ends: 877 [2024-11-13 14:05:13,559 INFO L226 Difference]: Without dead ends: 530 [2024-11-13 14:05:13,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:05:13,561 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 994 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2481 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 2481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:13,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1108 Invalid, 2784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 2481 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 14:05:13,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-13 14:05:13,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 372. [2024-11-13 14:05:13,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 289 states have (on average 1.519031141868512) internal successors, (439), 294 states have internal predecessors, (439), 61 states have call successors, (61), 19 states have call predecessors, (61), 21 states have return successors, (66), 58 states have call predecessors, (66), 58 states have call successors, (66) [2024-11-13 14:05:13,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 566 transitions. [2024-11-13 14:05:13,606 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 566 transitions. Word has length 114 [2024-11-13 14:05:13,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:13,607 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 566 transitions. [2024-11-13 14:05:13,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 14:05:13,608 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 566 transitions. [2024-11-13 14:05:13,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:05:13,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:13,611 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:13,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:05:13,612 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:13,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:13,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1375903269, now seen corresponding path program 1 times [2024-11-13 14:05:13,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:13,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580046890] [2024-11-13 14:05:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:13,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:13,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:13,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:13,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:13,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:05:13,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:13,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:05:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:13,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:05:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:13,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:05:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:13,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 14:05:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:13,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-13 14:05:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:13,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-13 14:05:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:13,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 14:05:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:13,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 14:05:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:13,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 14:05:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:13,952 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 14:05:13,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:13,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580046890] [2024-11-13 14:05:13,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580046890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:13,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:05:13,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 14:05:13,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328220645] [2024-11-13 14:05:13,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:13,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:05:13,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:13,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:05:13,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:05:13,955 INFO L87 Difference]: Start difference. First operand 372 states and 566 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 14:05:17,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:17,728 INFO L93 Difference]: Finished difference Result 875 states and 1332 transitions. [2024-11-13 14:05:17,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:05:17,729 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 115 [2024-11-13 14:05:17,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:17,734 INFO L225 Difference]: With dead ends: 875 [2024-11-13 14:05:17,734 INFO L226 Difference]: Without dead ends: 530 [2024-11-13 14:05:17,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:05:17,737 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 998 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4115 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 4424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 4115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:17,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 1535 Invalid, 4424 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [309 Valid, 4115 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-13 14:05:17,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-13 14:05:17,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 372. [2024-11-13 14:05:17,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 289 states have (on average 1.519031141868512) internal successors, (439), 294 states have internal predecessors, (439), 61 states have call successors, (61), 19 states have call predecessors, (61), 21 states have return successors, (65), 58 states have call predecessors, (65), 58 states have call successors, (65) [2024-11-13 14:05:17,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 565 transitions. [2024-11-13 14:05:17,788 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 565 transitions. Word has length 115 [2024-11-13 14:05:17,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:17,789 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 565 transitions. [2024-11-13 14:05:17,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 14:05:17,789 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 565 transitions. [2024-11-13 14:05:17,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-13 14:05:17,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:17,792 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:17,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:05:17,792 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:17,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:17,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1626347002, now seen corresponding path program 2 times [2024-11-13 14:05:17,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:17,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619996764] [2024-11-13 14:05:17,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:17,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:17,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:17,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:17,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:17,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:05:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:18,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:05:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:18,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:05:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:18,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:05:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:18,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:05:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:18,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:05:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:18,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 14:05:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:18,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 14:05:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:18,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:05:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:18,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-13 14:05:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:18,124 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 14:05:18,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:18,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619996764] [2024-11-13 14:05:18,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619996764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:18,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:05:18,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 14:05:18,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965343483] [2024-11-13 14:05:18,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:18,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:05:18,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:18,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:05:18,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:05:18,127 INFO L87 Difference]: Start difference. First operand 372 states and 565 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 14:05:21,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:21,706 INFO L93 Difference]: Finished difference Result 877 states and 1338 transitions. [2024-11-13 14:05:21,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:05:21,707 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 116 [2024-11-13 14:05:21,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:21,713 INFO L225 Difference]: With dead ends: 877 [2024-11-13 14:05:21,714 INFO L226 Difference]: Without dead ends: 532 [2024-11-13 14:05:21,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:05:21,718 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 995 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4127 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 4435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 4127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:21,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 1535 Invalid, 4435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 4127 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-13 14:05:21,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-13 14:05:21,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 374. [2024-11-13 14:05:21,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 290 states have (on average 1.5172413793103448) internal successors, (440), 296 states have internal predecessors, (440), 61 states have call successors, (61), 19 states have call predecessors, (61), 22 states have return successors, (70), 58 states have call predecessors, (70), 58 states have call successors, (70) [2024-11-13 14:05:21,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 571 transitions. [2024-11-13 14:05:21,772 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 571 transitions. Word has length 116 [2024-11-13 14:05:21,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:21,773 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 571 transitions. [2024-11-13 14:05:21,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 14:05:21,774 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 571 transitions. [2024-11-13 14:05:21,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-13 14:05:21,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:21,776 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:21,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:05:21,777 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:21,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:21,777 INFO L85 PathProgramCache]: Analyzing trace with hash -689463990, now seen corresponding path program 1 times [2024-11-13 14:05:21,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:21,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857235198] [2024-11-13 14:05:21,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:21,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:21,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:21,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:21,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:21,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:05:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:21,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:05:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:21,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:05:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:21,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-13 14:05:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:21,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 14:05:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:21,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 14:05:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:21,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 14:05:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:21,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 14:05:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:21,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:05:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:21,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 14:05:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:21,987 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:05:21,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:21,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857235198] [2024-11-13 14:05:21,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857235198] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:05:21,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943905400] [2024-11-13 14:05:21,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:21,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:21,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:05:21,992 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:05:21,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 14:05:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:22,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:05:22,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:05:22,388 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:05:22,389 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:05:22,513 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:05:22,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943905400] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:05:22,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:05:22,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-11-13 14:05:22,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581959209] [2024-11-13 14:05:22,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:05:22,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:05:22,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:22,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:05:22,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:05:22,518 INFO L87 Difference]: Start difference. First operand 374 states and 571 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-13 14:05:24,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:24,938 INFO L93 Difference]: Finished difference Result 1046 states and 1666 transitions. [2024-11-13 14:05:24,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:05:24,939 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 117 [2024-11-13 14:05:24,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:24,946 INFO L225 Difference]: With dead ends: 1046 [2024-11-13 14:05:24,946 INFO L226 Difference]: Without dead ends: 884 [2024-11-13 14:05:24,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:05:24,949 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 1464 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 2119 mSolverCounterSat, 470 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 2589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 2119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:24,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1327 Invalid, 2589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [470 Valid, 2119 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 14:05:24,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2024-11-13 14:05:25,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 702. [2024-11-13 14:05:25,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 554 states have (on average 1.5848375451263539) internal successors, (878), 560 states have internal predecessors, (878), 125 states have call successors, (125), 19 states have call predecessors, (125), 22 states have return successors, (144), 122 states have call predecessors, (144), 122 states have call successors, (144) [2024-11-13 14:05:25,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 1147 transitions. [2024-11-13 14:05:25,008 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 1147 transitions. Word has length 117 [2024-11-13 14:05:25,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:25,009 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 1147 transitions. [2024-11-13 14:05:25,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-13 14:05:25,009 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 1147 transitions. [2024-11-13 14:05:25,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 14:05:25,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:25,014 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:25,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 14:05:25,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 14:05:25,218 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:25,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:25,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1385002649, now seen corresponding path program 1 times [2024-11-13 14:05:25,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:25,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76285044] [2024-11-13 14:05:25,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:25,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:25,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:25,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:25,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:25,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:05:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:25,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:05:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:25,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:05:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:25,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 14:05:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:25,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 14:05:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:25,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 14:05:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:25,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 14:05:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:25,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:05:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:25,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 14:05:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:25,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-13 14:05:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:25,369 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:05:25,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:25,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76285044] [2024-11-13 14:05:25,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76285044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:25,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:05:25,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:05:25,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231655887] [2024-11-13 14:05:25,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:25,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:05:25,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:25,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:05:25,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:05:25,371 INFO L87 Difference]: Start difference. First operand 702 states and 1147 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:27,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:27,303 INFO L93 Difference]: Finished difference Result 1827 states and 3037 transitions. [2024-11-13 14:05:27,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:05:27,303 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2024-11-13 14:05:27,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:27,312 INFO L225 Difference]: With dead ends: 1827 [2024-11-13 14:05:27,312 INFO L226 Difference]: Without dead ends: 1193 [2024-11-13 14:05:27,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:05:27,316 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1098 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:27,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1113 Valid, 863 Invalid, 1804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 14:05:27,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2024-11-13 14:05:27,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1027. [2024-11-13 14:05:27,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 815 states have (on average 1.5987730061349694) internal successors, (1303), 821 states have internal predecessors, (1303), 189 states have call successors, (189), 19 states have call predecessors, (189), 22 states have return successors, (218), 186 states have call predecessors, (218), 186 states have call successors, (218) [2024-11-13 14:05:27,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1710 transitions. [2024-11-13 14:05:27,390 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1710 transitions. Word has length 123 [2024-11-13 14:05:27,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:27,391 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1710 transitions. [2024-11-13 14:05:27,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:27,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1710 transitions. [2024-11-13 14:05:27,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-13 14:05:27,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:27,398 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:27,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 14:05:27,399 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:27,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:27,399 INFO L85 PathProgramCache]: Analyzing trace with hash 233613875, now seen corresponding path program 1 times [2024-11-13 14:05:27,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:27,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101606463] [2024-11-13 14:05:27,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:27,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:27,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:27,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:27,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:27,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:05:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:27,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:05:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:27,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:05:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:27,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 14:05:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:27,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 14:05:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:27,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 14:05:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:27,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 14:05:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:27,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:05:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:27,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-13 14:05:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:27,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 14:05:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:27,539 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:05:27,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:27,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101606463] [2024-11-13 14:05:27,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101606463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:27,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:05:27,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:05:27,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212614667] [2024-11-13 14:05:27,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:27,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:05:27,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:27,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:05:27,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:05:27,542 INFO L87 Difference]: Start difference. First operand 1027 states and 1710 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:29,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:29,426 INFO L93 Difference]: Finished difference Result 2607 states and 4386 transitions. [2024-11-13 14:05:29,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:05:29,427 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2024-11-13 14:05:29,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:29,437 INFO L225 Difference]: With dead ends: 2607 [2024-11-13 14:05:29,437 INFO L226 Difference]: Without dead ends: 1701 [2024-11-13 14:05:29,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:05:29,442 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1096 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:29,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 812 Invalid, 1772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 14:05:29,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2024-11-13 14:05:29,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1535. [2024-11-13 14:05:29,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1228 states have (on average 1.6074918566775245) internal successors, (1974), 1234 states have internal predecessors, (1974), 284 states have call successors, (284), 19 states have call predecessors, (284), 22 states have return successors, (313), 281 states have call predecessors, (313), 281 states have call successors, (313) [2024-11-13 14:05:29,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2571 transitions. [2024-11-13 14:05:29,549 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2571 transitions. Word has length 124 [2024-11-13 14:05:29,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:29,550 INFO L471 AbstractCegarLoop]: Abstraction has 1535 states and 2571 transitions. [2024-11-13 14:05:29,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:29,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2571 transitions. [2024-11-13 14:05:29,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 14:05:29,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:29,559 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:29,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 14:05:29,559 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:29,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:29,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1202364233, now seen corresponding path program 1 times [2024-11-13 14:05:29,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:29,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115538590] [2024-11-13 14:05:29,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:29,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:29,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:29,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:29,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:29,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:05:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:29,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:05:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:29,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:05:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:29,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-13 14:05:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:29,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 14:05:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:29,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:05:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:29,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 14:05:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:29,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-13 14:05:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:29,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 14:05:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:29,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-13 14:05:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:29,696 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:05:29,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:29,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115538590] [2024-11-13 14:05:29,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115538590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:29,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:05:29,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:05:29,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656089403] [2024-11-13 14:05:29,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:29,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:05:29,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:29,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:05:29,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:05:29,699 INFO L87 Difference]: Start difference. First operand 1535 states and 2571 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:31,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:31,503 INFO L93 Difference]: Finished difference Result 3759 states and 6395 transitions. [2024-11-13 14:05:31,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:05:31,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2024-11-13 14:05:31,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:31,518 INFO L225 Difference]: With dead ends: 3759 [2024-11-13 14:05:31,518 INFO L226 Difference]: Without dead ends: 2470 [2024-11-13 14:05:31,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:05:31,524 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1094 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 1762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:31,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 811 Invalid, 1762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 14:05:31,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2470 states. [2024-11-13 14:05:31,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2470 to 2304. [2024-11-13 14:05:31,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2304 states, 1874 states have (on average 1.6141942369263607) internal successors, (3025), 1880 states have internal predecessors, (3025), 407 states have call successors, (407), 19 states have call predecessors, (407), 22 states have return successors, (452), 404 states have call predecessors, (452), 404 states have call successors, (452) [2024-11-13 14:05:31,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2304 states to 2304 states and 3884 transitions. [2024-11-13 14:05:31,669 INFO L78 Accepts]: Start accepts. Automaton has 2304 states and 3884 transitions. Word has length 125 [2024-11-13 14:05:31,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:31,669 INFO L471 AbstractCegarLoop]: Abstraction has 2304 states and 3884 transitions. [2024-11-13 14:05:31,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:31,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2304 states and 3884 transitions. [2024-11-13 14:05:31,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-13 14:05:31,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:31,683 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:31,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 14:05:31,683 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:31,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:31,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1474947796, now seen corresponding path program 1 times [2024-11-13 14:05:31,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:31,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167946351] [2024-11-13 14:05:31,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:31,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:31,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:31,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:31,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:31,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:05:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:31,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:05:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:31,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:05:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:31,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-13 14:05:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:31,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 14:05:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:31,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 14:05:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:31,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 14:05:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:31,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 14:05:31,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:31,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 14:05:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:31,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 14:05:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:31,836 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:05:31,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:31,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167946351] [2024-11-13 14:05:31,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167946351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:31,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:05:31,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:05:31,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404117887] [2024-11-13 14:05:31,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:31,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:05:31,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:31,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:05:31,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:05:31,838 INFO L87 Difference]: Start difference. First operand 2304 states and 3884 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:33,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:33,607 INFO L93 Difference]: Finished difference Result 5553 states and 9529 transitions. [2024-11-13 14:05:33,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:05:33,608 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2024-11-13 14:05:33,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:33,627 INFO L225 Difference]: With dead ends: 5553 [2024-11-13 14:05:33,627 INFO L226 Difference]: Without dead ends: 3699 [2024-11-13 14:05:33,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:05:33,635 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 1093 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:33,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 810 Invalid, 1752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 14:05:33,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states. [2024-11-13 14:05:33,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 3533. [2024-11-13 14:05:33,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3533 states, 2924 states have (on average 1.6183310533515731) internal successors, (4732), 2930 states have internal predecessors, (4732), 586 states have call successors, (586), 19 states have call predecessors, (586), 22 states have return successors, (657), 583 states have call predecessors, (657), 583 states have call successors, (657) [2024-11-13 14:05:33,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 5975 transitions. [2024-11-13 14:05:33,890 INFO L78 Accepts]: Start accepts. Automaton has 3533 states and 5975 transitions. Word has length 126 [2024-11-13 14:05:33,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:33,891 INFO L471 AbstractCegarLoop]: Abstraction has 3533 states and 5975 transitions. [2024-11-13 14:05:33,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:33,891 INFO L276 IsEmpty]: Start isEmpty. Operand 3533 states and 5975 transitions. [2024-11-13 14:05:33,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-13 14:05:33,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:33,907 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:33,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 14:05:33,908 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:33,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:33,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1588353083, now seen corresponding path program 1 times [2024-11-13 14:05:33,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:33,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310111634] [2024-11-13 14:05:33,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:33,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:33,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:34,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:34,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:34,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:05:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:34,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:05:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:34,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:05:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:34,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:05:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:34,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 14:05:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:34,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 14:05:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:34,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 14:05:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:34,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 14:05:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:34,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-13 14:05:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:34,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-13 14:05:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:34,059 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:05:34,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:34,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310111634] [2024-11-13 14:05:34,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310111634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:34,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:05:34,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:05:34,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998767450] [2024-11-13 14:05:34,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:34,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:05:34,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:34,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:05:34,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:05:34,062 INFO L87 Difference]: Start difference. First operand 3533 states and 5975 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:35,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:35,886 INFO L93 Difference]: Finished difference Result 8501 states and 14676 transitions. [2024-11-13 14:05:35,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:05:35,887 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2024-11-13 14:05:35,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:35,918 INFO L225 Difference]: With dead ends: 8501 [2024-11-13 14:05:35,918 INFO L226 Difference]: Without dead ends: 5730 [2024-11-13 14:05:35,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:05:35,926 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 1091 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 1782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:35,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1106 Valid, 839 Invalid, 1782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 14:05:35,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5730 states. [2024-11-13 14:05:36,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5730 to 5564. [2024-11-13 14:05:36,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5564 states, 4579 states have (on average 1.6125791657567154) internal successors, (7384), 4585 states have internal predecessors, (7384), 962 states have call successors, (962), 19 states have call predecessors, (962), 22 states have return successors, (1077), 959 states have call predecessors, (1077), 959 states have call successors, (1077) [2024-11-13 14:05:36,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5564 states to 5564 states and 9423 transitions. [2024-11-13 14:05:36,317 INFO L78 Accepts]: Start accepts. Automaton has 5564 states and 9423 transitions. Word has length 127 [2024-11-13 14:05:36,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:36,317 INFO L471 AbstractCegarLoop]: Abstraction has 5564 states and 9423 transitions. [2024-11-13 14:05:36,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:36,318 INFO L276 IsEmpty]: Start isEmpty. Operand 5564 states and 9423 transitions. [2024-11-13 14:05:36,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-13 14:05:36,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:36,343 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:36,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 14:05:36,343 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:36,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:36,344 INFO L85 PathProgramCache]: Analyzing trace with hash -2017157544, now seen corresponding path program 1 times [2024-11-13 14:05:36,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:36,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669613940] [2024-11-13 14:05:36,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:36,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:36,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:36,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:36,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:36,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:05:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:36,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:05:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:36,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:05:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:36,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 14:05:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:36,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:05:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:36,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 14:05:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:36,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 14:05:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:36,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 14:05:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:36,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-13 14:05:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:36,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-13 14:05:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:36,519 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:05:36,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:36,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669613940] [2024-11-13 14:05:36,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669613940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:36,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:05:36,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:05:36,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838015960] [2024-11-13 14:05:36,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:36,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:05:36,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:36,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:05:36,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:05:36,523 INFO L87 Difference]: Start difference. First operand 5564 states and 9423 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:38,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:38,486 INFO L93 Difference]: Finished difference Result 13838 states and 23897 transitions. [2024-11-13 14:05:38,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:05:38,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2024-11-13 14:05:38,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:38,534 INFO L225 Difference]: With dead ends: 13838 [2024-11-13 14:05:38,534 INFO L226 Difference]: Without dead ends: 9413 [2024-11-13 14:05:38,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:05:38,548 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 1089 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:38,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 817 Invalid, 1764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 14:05:38,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9413 states. [2024-11-13 14:05:39,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9413 to 9247. [2024-11-13 14:05:39,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9247 states, 7656 states have (on average 1.6105015673981191) internal successors, (12330), 7662 states have internal predecessors, (12330), 1568 states have call successors, (1568), 19 states have call predecessors, (1568), 22 states have return successors, (1761), 1565 states have call predecessors, (1761), 1565 states have call successors, (1761) [2024-11-13 14:05:39,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9247 states to 9247 states and 15659 transitions. [2024-11-13 14:05:39,097 INFO L78 Accepts]: Start accepts. Automaton has 9247 states and 15659 transitions. Word has length 128 [2024-11-13 14:05:39,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:39,097 INFO L471 AbstractCegarLoop]: Abstraction has 9247 states and 15659 transitions. [2024-11-13 14:05:39,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:39,099 INFO L276 IsEmpty]: Start isEmpty. Operand 9247 states and 15659 transitions. [2024-11-13 14:05:39,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 14:05:39,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:39,120 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:39,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 14:05:39,121 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:39,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:39,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1312908813, now seen corresponding path program 1 times [2024-11-13 14:05:39,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:39,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41481827] [2024-11-13 14:05:39,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:39,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:39,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:39,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:39,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:39,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:05:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:39,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:05:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:39,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:05:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:39,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 14:05:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:39,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-13 14:05:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:39,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 14:05:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:39,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 14:05:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:39,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-13 14:05:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:39,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-13 14:05:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:39,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 14:05:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:39,264 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:05:39,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:39,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41481827] [2024-11-13 14:05:39,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41481827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:39,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:05:39,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:05:39,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411242400] [2024-11-13 14:05:39,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:39,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:05:39,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:39,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:05:39,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:05:39,268 INFO L87 Difference]: Start difference. First operand 9247 states and 15659 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:41,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:41,237 INFO L93 Difference]: Finished difference Result 24022 states and 41443 transitions. [2024-11-13 14:05:41,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:05:41,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2024-11-13 14:05:41,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:41,329 INFO L225 Difference]: With dead ends: 24022 [2024-11-13 14:05:41,329 INFO L226 Difference]: Without dead ends: 16366 [2024-11-13 14:05:41,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:05:41,442 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1087 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 1778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:41,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 838 Invalid, 1778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 14:05:41,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16366 states. [2024-11-13 14:05:42,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16366 to 16200. [2024-11-13 14:05:42,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16200 states, 13406 states have (on average 1.601670893629718) internal successors, (21472), 13412 states have internal predecessors, (21472), 2771 states have call successors, (2771), 19 states have call predecessors, (2771), 22 states have return successors, (3108), 2768 states have call predecessors, (3108), 2768 states have call successors, (3108) [2024-11-13 14:05:42,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16200 states to 16200 states and 27351 transitions. [2024-11-13 14:05:42,561 INFO L78 Accepts]: Start accepts. Automaton has 16200 states and 27351 transitions. Word has length 129 [2024-11-13 14:05:42,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:42,562 INFO L471 AbstractCegarLoop]: Abstraction has 16200 states and 27351 transitions. [2024-11-13 14:05:42,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:42,562 INFO L276 IsEmpty]: Start isEmpty. Operand 16200 states and 27351 transitions. [2024-11-13 14:05:42,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-13 14:05:42,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:42,596 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:42,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 14:05:42,597 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:42,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:42,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1204369383, now seen corresponding path program 1 times [2024-11-13 14:05:42,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:42,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969588691] [2024-11-13 14:05:42,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:42,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:42,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:42,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:42,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:42,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:05:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:42,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:05:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:42,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:05:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:42,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 14:05:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:42,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-13 14:05:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:42,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 14:05:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:42,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:05:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:42,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 14:05:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:42,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 14:05:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:42,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 14:05:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:42,750 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:05:42,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:42,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969588691] [2024-11-13 14:05:42,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969588691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:42,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:05:42,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:05:42,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266012951] [2024-11-13 14:05:42,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:42,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:05:42,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:42,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:05:42,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:05:42,755 INFO L87 Difference]: Start difference. First operand 16200 states and 27351 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:45,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:45,021 INFO L93 Difference]: Finished difference Result 42988 states and 74042 transitions. [2024-11-13 14:05:45,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:05:45,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2024-11-13 14:05:45,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:45,183 INFO L225 Difference]: With dead ends: 42988 [2024-11-13 14:05:45,183 INFO L226 Difference]: Without dead ends: 29021 [2024-11-13 14:05:45,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:05:45,230 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1084 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:45,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 814 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 14:05:45,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29021 states. [2024-11-13 14:05:46,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29021 to 28855. [2024-11-13 14:05:46,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28855 states, 24022 states have (on average 1.5975355923736574) internal successors, (38376), 24028 states have internal predecessors, (38376), 4810 states have call successors, (4810), 19 states have call predecessors, (4810), 22 states have return successors, (5421), 4807 states have call predecessors, (5421), 4807 states have call successors, (5421) [2024-11-13 14:05:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28855 states to 28855 states and 48607 transitions. [2024-11-13 14:05:46,850 INFO L78 Accepts]: Start accepts. Automaton has 28855 states and 48607 transitions. Word has length 130 [2024-11-13 14:05:46,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:46,850 INFO L471 AbstractCegarLoop]: Abstraction has 28855 states and 48607 transitions. [2024-11-13 14:05:46,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:46,851 INFO L276 IsEmpty]: Start isEmpty. Operand 28855 states and 48607 transitions. [2024-11-13 14:05:46,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-13 14:05:46,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:46,902 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:46,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 14:05:46,902 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:46,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:46,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1610468501, now seen corresponding path program 1 times [2024-11-13 14:05:46,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:46,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319185936] [2024-11-13 14:05:46,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:46,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:47,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:47,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:47,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:47,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:05:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:47,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:05:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:47,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:05:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:47,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 14:05:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:47,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:05:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:47,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 14:05:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:47,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:05:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:47,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-13 14:05:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:47,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-13 14:05:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:47,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-13 14:05:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:47,086 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:05:47,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:47,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319185936] [2024-11-13 14:05:47,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319185936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:47,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:05:47,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:05:47,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477083863] [2024-11-13 14:05:47,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:47,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:05:47,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:47,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:05:47,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:05:47,088 INFO L87 Difference]: Start difference. First operand 28855 states and 48607 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:50,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:50,229 INFO L93 Difference]: Finished difference Result 78750 states and 134801 transitions. [2024-11-13 14:05:50,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:05:50,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 131 [2024-11-13 14:05:50,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:50,476 INFO L225 Difference]: With dead ends: 78750 [2024-11-13 14:05:50,476 INFO L226 Difference]: Without dead ends: 52900 [2024-11-13 14:05:50,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:05:50,545 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 1083 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:50,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 823 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 14:05:50,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52900 states. [2024-11-13 14:05:52,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52900 to 52734. [2024-11-13 14:05:52,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52734 states, 44186 states have (on average 1.5920200968632598) internal successors, (70345), 44192 states have internal predecessors, (70345), 8525 states have call successors, (8525), 19 states have call predecessors, (8525), 22 states have return successors, (9668), 8522 states have call predecessors, (9668), 8522 states have call successors, (9668) [2024-11-13 14:05:53,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52734 states to 52734 states and 88538 transitions. [2024-11-13 14:05:53,247 INFO L78 Accepts]: Start accepts. Automaton has 52734 states and 88538 transitions. Word has length 131 [2024-11-13 14:05:53,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:53,248 INFO L471 AbstractCegarLoop]: Abstraction has 52734 states and 88538 transitions. [2024-11-13 14:05:53,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:53,248 INFO L276 IsEmpty]: Start isEmpty. Operand 52734 states and 88538 transitions. [2024-11-13 14:05:53,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 14:05:53,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:53,306 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:53,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 14:05:53,307 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:05:53,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:53,307 INFO L85 PathProgramCache]: Analyzing trace with hash 319204857, now seen corresponding path program 1 times [2024-11-13 14:05:53,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:53,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838490463] [2024-11-13 14:05:53,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:53,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:53,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:05:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:53,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:05:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:53,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:05:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:53,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:05:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:53,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:05:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:53,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:05:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:53,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 14:05:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:53,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 14:05:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:53,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 14:05:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:53,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-13 14:05:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:53,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 14:05:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:53,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 14:05:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:53,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-13 14:05:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:53,484 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:05:53,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:53,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838490463] [2024-11-13 14:05:53,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838490463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:05:53,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:05:53,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:05:53,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858397047] [2024-11-13 14:05:53,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:05:53,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:05:53,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:53,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:05:53,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:05:53,486 INFO L87 Difference]: Start difference. First operand 52734 states and 88538 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:05:57,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:57,235 INFO L93 Difference]: Finished difference Result 98521 states and 168988 transitions. [2024-11-13 14:05:57,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:05:57,236 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 132 [2024-11-13 14:05:57,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:57,774 INFO L225 Difference]: With dead ends: 98521 [2024-11-13 14:05:57,774 INFO L226 Difference]: Without dead ends: 98359 [2024-11-13 14:05:57,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:05:57,830 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 1077 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:57,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 852 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 14:05:57,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98359 states. [2024-11-13 14:06:01,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98359 to 98193. [2024-11-13 14:06:01,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98193 states, 82846 states have (on average 1.5850493687082057) internal successors, (131315), 82852 states have internal predecessors, (131315), 15324 states have call successors, (15324), 19 states have call predecessors, (15324), 22 states have return successors, (17513), 15321 states have call predecessors, (17513), 15321 states have call successors, (17513) [2024-11-13 14:06:01,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98193 states to 98193 states and 164152 transitions. [2024-11-13 14:06:01,732 INFO L78 Accepts]: Start accepts. Automaton has 98193 states and 164152 transitions. Word has length 132 [2024-11-13 14:06:01,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:06:01,733 INFO L471 AbstractCegarLoop]: Abstraction has 98193 states and 164152 transitions. [2024-11-13 14:06:01,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 14:06:01,733 INFO L276 IsEmpty]: Start isEmpty. Operand 98193 states and 164152 transitions. [2024-11-13 14:06:01,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 14:06:01,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:06:01,805 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:06:01,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 14:06:01,805 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:06:01,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:06:01,806 INFO L85 PathProgramCache]: Analyzing trace with hash 653575764, now seen corresponding path program 1 times [2024-11-13 14:06:01,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:06:01,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616640065] [2024-11-13 14:06:01,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:06:01,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:06:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:02,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:06:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:02,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:06:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:02,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:06:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:02,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:06:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:02,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:06:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:02,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:06:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:02,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:06:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:02,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 14:06:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:02,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 14:06:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:02,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 14:06:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:02,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 14:06:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:02,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-13 14:06:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:02,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 14:06:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:02,613 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:06:02,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:06:02,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616640065] [2024-11-13 14:06:02,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616640065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:06:02,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:06:02,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 14:06:02,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982406233] [2024-11-13 14:06:02,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:06:02,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:06:02,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:06:02,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:06:02,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:06:02,616 INFO L87 Difference]: Start difference. First operand 98193 states and 164152 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 14:06:09,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:06:09,104 INFO L93 Difference]: Finished difference Result 99111 states and 168756 transitions. [2024-11-13 14:06:09,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-13 14:06:09,105 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 133 [2024-11-13 14:06:09,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:06:09,549 INFO L225 Difference]: With dead ends: 99111 [2024-11-13 14:06:09,549 INFO L226 Difference]: Without dead ends: 98955 [2024-11-13 14:06:09,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=328, Invalid=862, Unknown=0, NotChecked=0, Total=1190 [2024-11-13 14:06:09,595 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1804 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 4692 mSolverCounterSat, 499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1818 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 5191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 499 IncrementalHoareTripleChecker+Valid, 4692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:06:09,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1818 Valid, 1144 Invalid, 5191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [499 Valid, 4692 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-13 14:06:09,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98955 states. [2024-11-13 14:06:13,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98955 to 98509. [2024-11-13 14:06:13,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98509 states, 83098 states have (on average 1.584574839346314) internal successors, (131675), 83107 states have internal predecessors, (131675), 15362 states have call successors, (15362), 41 states have call predecessors, (15362), 48 states have return successors, (17558), 15360 states have call predecessors, (17558), 15357 states have call successors, (17558) [2024-11-13 14:06:13,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98509 states to 98509 states and 164595 transitions. [2024-11-13 14:06:13,730 INFO L78 Accepts]: Start accepts. Automaton has 98509 states and 164595 transitions. Word has length 133 [2024-11-13 14:06:13,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:06:13,730 INFO L471 AbstractCegarLoop]: Abstraction has 98509 states and 164595 transitions. [2024-11-13 14:06:13,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 14:06:13,730 INFO L276 IsEmpty]: Start isEmpty. Operand 98509 states and 164595 transitions. [2024-11-13 14:06:13,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-13 14:06:13,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:06:13,783 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:06:13,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 14:06:13,784 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:06:13,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:06:13,784 INFO L85 PathProgramCache]: Analyzing trace with hash 264160964, now seen corresponding path program 1 times [2024-11-13 14:06:13,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:06:13,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39351176] [2024-11-13 14:06:13,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:06:13,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:06:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:14,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:06:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:14,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:06:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:14,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:06:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:14,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:06:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:14,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:06:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:14,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:06:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:14,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:06:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:14,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 14:06:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:14,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 14:06:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:14,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 14:06:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:14,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-13 14:06:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:14,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-13 14:06:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:14,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-13 14:06:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:14,531 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:06:14,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:06:14,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39351176] [2024-11-13 14:06:14,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39351176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:06:14,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:06:14,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-13 14:06:14,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106853785] [2024-11-13 14:06:14,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:06:14,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 14:06:14,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:06:14,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 14:06:14,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:06:14,533 INFO L87 Difference]: Start difference. First operand 98509 states and 164595 transitions. Second operand has 15 states, 13 states have (on average 7.076923076923077) internal successors, (92), 10 states have internal predecessors, (92), 6 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-13 14:06:21,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:06:21,716 INFO L93 Difference]: Finished difference Result 99623 states and 169495 transitions. [2024-11-13 14:06:21,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-13 14:06:21,717 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.076923076923077) internal successors, (92), 10 states have internal predecessors, (92), 6 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 134 [2024-11-13 14:06:21,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:06:22,137 INFO L225 Difference]: With dead ends: 99623 [2024-11-13 14:06:22,138 INFO L226 Difference]: Without dead ends: 98805 [2024-11-13 14:06:22,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=344, Invalid=1636, Unknown=0, NotChecked=0, Total=1980 [2024-11-13 14:06:22,179 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 1563 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 6878 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 7426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 6878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:06:22,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 1998 Invalid, 7426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [548 Valid, 6878 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 14:06:22,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98805 states. [2024-11-13 14:06:25,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98805 to 98465. [2024-11-13 14:06:25,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98465 states, 83063 states have (on average 1.584676691186208) internal successors, (131628), 83072 states have internal predecessors, (131628), 15356 states have call successors, (15356), 40 states have call predecessors, (15356), 45 states have return successors, (17551), 15352 states have call predecessors, (17551), 15352 states have call successors, (17551) [2024-11-13 14:06:25,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98465 states to 98465 states and 164535 transitions. [2024-11-13 14:06:25,841 INFO L78 Accepts]: Start accepts. Automaton has 98465 states and 164535 transitions. Word has length 134 [2024-11-13 14:06:25,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:06:25,841 INFO L471 AbstractCegarLoop]: Abstraction has 98465 states and 164535 transitions. [2024-11-13 14:06:25,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.076923076923077) internal successors, (92), 10 states have internal predecessors, (92), 6 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-13 14:06:25,842 INFO L276 IsEmpty]: Start isEmpty. Operand 98465 states and 164535 transitions. [2024-11-13 14:06:25,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-13 14:06:25,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:06:25,902 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:06:25,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 14:06:25,902 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:06:25,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:06:25,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1155016802, now seen corresponding path program 1 times [2024-11-13 14:06:25,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:06:25,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307822086] [2024-11-13 14:06:25,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:06:25,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:06:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:26,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 14:06:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:26,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:06:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:26,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:06:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:26,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 14:06:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:26,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:06:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:26,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:06:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:26,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:06:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:26,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 14:06:26,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:26,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:06:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:26,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 14:06:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:26,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 14:06:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:26,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-13 14:06:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:26,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-13 14:06:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:26,962 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-13 14:06:26,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:06:26,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307822086] [2024-11-13 14:06:26,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307822086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:06:26,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151668938] [2024-11-13 14:06:26,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:06:26,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:06:26,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:06:26,965 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:06:26,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f921994-5f7d-42e5-a258-7dc7198bd7a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 14:06:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:27,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 1121 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 14:06:27,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:06:27,819 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 14:06:27,819 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:06:27,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151668938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:06:27,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:06:27,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [20] total 31 [2024-11-13 14:06:27,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856298041] [2024-11-13 14:06:27,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:06:27,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:06:27,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:06:27,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:06:27,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2024-11-13 14:06:27,821 INFO L87 Difference]: Start difference. First operand 98465 states and 164535 transitions. Second operand has 13 states, 12 states have (on average 8.5) internal successors, (102), 11 states have internal predecessors, (102), 6 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13)