./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product23.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 ef17cfb4a2c8358ea255253edc0610051a64c94a86cd92ff89d3b074c51925f6 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 21:37:26,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 21:37:26,899 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 21:37:26,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 21:37:26,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 21:37:26,931 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 21:37:26,931 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 21:37:26,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 21:37:26,932 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 21:37:26,933 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 21:37:26,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 21:37:26,933 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 21:37:26,934 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 21:37:26,934 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 21:37:26,935 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 21:37:26,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 21:37:26,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 21:37:26,936 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 21:37:26,936 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 21:37:26,936 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 21:37:26,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 21:37:26,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 21:37:26,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 21:37:26,938 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 21:37:26,938 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 21:37:26,939 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 21:37:26,939 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 21:37:26,939 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 21:37:26,939 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 21:37:26,940 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 21:37:26,940 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 21:37:26,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 21:37:26,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 21:37:26,941 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 21:37:26,941 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 21:37:26,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 21:37:26,942 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 21:37:26,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 21:37:26,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 21:37:26,943 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 21:37:26,943 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 21:37:26,945 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 21:37:26,946 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef17cfb4a2c8358ea255253edc0610051a64c94a86cd92ff89d3b074c51925f6 [2024-11-19 21:37:27,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 21:37:27,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 21:37:27,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 21:37:27,241 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 21:37:27,242 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 21:37:27,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product23.cil.c [2024-11-19 21:37:28,643 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 21:37:28,955 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 21:37:28,956 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product23.cil.c [2024-11-19 21:37:28,984 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02e828c53/e02e1435206f4403b5e20b793a33df87/FLAG86c34fe97 [2024-11-19 21:37:29,002 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02e828c53/e02e1435206f4403b5e20b793a33df87 [2024-11-19 21:37:29,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 21:37:29,007 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 21:37:29,010 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 21:37:29,010 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 21:37:29,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 21:37:29,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:37:29" (1/1) ... [2024-11-19 21:37:29,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7856c2f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:29, skipping insertion in model container [2024-11-19 21:37:29,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:37:29" (1/1) ... [2024-11-19 21:37:29,108 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 21:37:29,342 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product23.cil.c[1811,1824] [2024-11-19 21:37:29,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 21:37:29,662 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 21:37:29,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2024-11-19 21:37:29,674 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [68] [2024-11-19 21:37:29,674 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [77] [2024-11-19 21:37:29,674 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [171] [2024-11-19 21:37:29,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [270] [2024-11-19 21:37:29,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1873] [2024-11-19 21:37:29,676 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1991] [2024-11-19 21:37:29,676 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2342] [2024-11-19 21:37:29,676 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2708] [2024-11-19 21:37:29,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2743] [2024-11-19 21:37:29,682 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product23.cil.c[1811,1824] [2024-11-19 21:37:29,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 21:37:29,853 INFO L204 MainTranslator]: Completed translation [2024-11-19 21:37:29,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:29 WrapperNode [2024-11-19 21:37:29,854 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 21:37:29,855 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 21:37:29,855 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 21:37:29,855 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 21:37:29,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:29" (1/1) ... [2024-11-19 21:37:29,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:29" (1/1) ... [2024-11-19 21:37:29,942 INFO L138 Inliner]: procedures = 94, calls = 346, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 872 [2024-11-19 21:37:29,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 21:37:29,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 21:37:29,943 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 21:37:29,943 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 21:37:29,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:29" (1/1) ... [2024-11-19 21:37:29,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:29" (1/1) ... [2024-11-19 21:37:29,973 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:29" (1/1) ... [2024-11-19 21:37:30,017 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-19 21:37:30,021 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:29" (1/1) ... [2024-11-19 21:37:30,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:29" (1/1) ... [2024-11-19 21:37:30,050 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:29" (1/1) ... [2024-11-19 21:37:30,073 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:29" (1/1) ... [2024-11-19 21:37:30,082 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:29" (1/1) ... [2024-11-19 21:37:30,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:29" (1/1) ... [2024-11-19 21:37:30,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 21:37:30,102 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 21:37:30,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 21:37:30,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 21:37:30,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:29" (1/1) ... [2024-11-19 21:37:30,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 21:37:30,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:30,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 21:37:30,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 21:37:30,191 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2024-11-19 21:37:30,191 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2024-11-19 21:37:30,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 21:37:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-19 21:37:30,192 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-19 21:37:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-11-19 21:37:30,192 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-11-19 21:37:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-19 21:37:30,209 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-19 21:37:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2024-11-19 21:37:30,210 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2024-11-19 21:37:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-19 21:37:30,211 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-19 21:37:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-19 21:37:30,211 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-19 21:37:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-19 21:37:30,212 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-19 21:37:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-19 21:37:30,212 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-19 21:37:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-19 21:37:30,212 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-19 21:37:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-19 21:37:30,212 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-19 21:37:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-19 21:37:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-19 21:37:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-19 21:37:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-19 21:37:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-19 21:37:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-19 21:37:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-19 21:37:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-19 21:37:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-19 21:37:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-19 21:37:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-19 21:37:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-19 21:37:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-19 21:37:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-19 21:37:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-19 21:37:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-19 21:37:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-19 21:37:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-19 21:37:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-19 21:37:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-19 21:37:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-19 21:37:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-19 21:37:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 21:37:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 21:37:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 21:37:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 21:37:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 21:37:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 21:37:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 21:37:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 21:37:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 21:37:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 21:37:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-19 21:37:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-19 21:37:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-19 21:37:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-19 21:37:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-19 21:37:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-19 21:37:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-19 21:37:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-19 21:37:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-19 21:37:30,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-19 21:37:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-19 21:37:30,236 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-19 21:37:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-19 21:37:30,236 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-19 21:37:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-19 21:37:30,236 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-19 21:37:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-19 21:37:30,236 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-19 21:37:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2024-11-19 21:37:30,236 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2024-11-19 21:37:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 21:37:30,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 21:37:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-19 21:37:30,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-19 21:37:30,450 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 21:37:30,454 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 21:37:31,833 INFO L? ?]: Removed 482 outVars from TransFormulas that were not future-live. [2024-11-19 21:37:31,833 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 21:37:31,868 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 21:37:31,868 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-19 21:37:31,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:37:31 BoogieIcfgContainer [2024-11-19 21:37:31,869 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 21:37:31,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 21:37:31,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 21:37:31,880 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 21:37:31,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:37:29" (1/3) ... [2024-11-19 21:37:31,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fb4fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:37:31, skipping insertion in model container [2024-11-19 21:37:31,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:29" (2/3) ... [2024-11-19 21:37:31,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fb4fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:37:31, skipping insertion in model container [2024-11-19 21:37:31,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:37:31" (3/3) ... [2024-11-19 21:37:31,883 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product23.cil.c [2024-11-19 21:37:31,900 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 21:37:31,900 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 21:37:31,979 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 21:37:31,986 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;@38a59050, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 21:37:31,987 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 21:37:31,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 620 states, 482 states have (on average 1.6742738589211619) internal successors, (807), 500 states have internal predecessors, (807), 108 states have call successors, (108), 28 states have call predecessors, (108), 28 states have return successors, (108), 105 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-19 21:37:32,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 21:37:32,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:32,027 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:32,031 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:32,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:32,038 INFO L85 PathProgramCache]: Analyzing trace with hash 989046031, now seen corresponding path program 1 times [2024-11-19 21:37:32,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:32,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831456718] [2024-11-19 21:37:32,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:32,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 21:37:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:37:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:37:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-19 21:37:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-19 21:37:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-19 21:37:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 21:37:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-19 21:37:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 21:37:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:32,958 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 21:37:32,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:32,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831456718] [2024-11-19 21:37:32,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831456718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:32,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199546093] [2024-11-19 21:37:32,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:32,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:32,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:32,962 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:32,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 21:37:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:33,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 1401 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:37:33,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:33,353 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 21:37:33,371 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:33,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199546093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:33,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:33,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-19 21:37:33,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482885606] [2024-11-19 21:37:33,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:33,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 21:37:33,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:33,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 21:37:33,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:37:33,410 INFO L87 Difference]: Start difference. First operand has 620 states, 482 states have (on average 1.6742738589211619) internal successors, (807), 500 states have internal predecessors, (807), 108 states have call successors, (108), 28 states have call predecessors, (108), 28 states have return successors, (108), 105 states have call predecessors, (108), 108 states have call successors, (108) Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:37:33,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:33,644 INFO L93 Difference]: Finished difference Result 1811 states and 3048 transitions. [2024-11-19 21:37:33,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 21:37:33,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2024-11-19 21:37:33,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:33,679 INFO L225 Difference]: With dead ends: 1811 [2024-11-19 21:37:33,680 INFO L226 Difference]: Without dead ends: 1195 [2024-11-19 21:37:33,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:37:33,699 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 1007 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:33,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 1993 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:37:33,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2024-11-19 21:37:33,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1186. [2024-11-19 21:37:33,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 930 states have (on average 1.6666666666666667) internal successors, (1550), 959 states have internal predecessors, (1550), 204 states have call successors, (204), 53 states have call predecessors, (204), 51 states have return successors, (212), 199 states have call predecessors, (212), 200 states have call successors, (212) [2024-11-19 21:37:33,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1966 transitions. [2024-11-19 21:37:33,900 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1966 transitions. Word has length 131 [2024-11-19 21:37:33,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:33,901 INFO L471 AbstractCegarLoop]: Abstraction has 1186 states and 1966 transitions. [2024-11-19 21:37:33,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:37:33,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1966 transitions. [2024-11-19 21:37:33,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 21:37:33,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:33,916 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:33,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 21:37:34,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 21:37:34,120 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:34,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:34,121 INFO L85 PathProgramCache]: Analyzing trace with hash 714286417, now seen corresponding path program 1 times [2024-11-19 21:37:34,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:34,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141694221] [2024-11-19 21:37:34,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:34,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 21:37:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:37:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:37:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-19 21:37:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-19 21:37:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-19 21:37:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 21:37:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-19 21:37:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 21:37:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,632 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 21:37:34,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:34,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141694221] [2024-11-19 21:37:34,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141694221] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:34,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221270589] [2024-11-19 21:37:34,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:34,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:34,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:34,638 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:34,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 21:37:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:34,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 1402 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:37:34,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:35,003 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-19 21:37:35,003 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:35,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221270589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:35,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:35,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-19 21:37:35,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351755491] [2024-11-19 21:37:35,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:35,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:37:35,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:35,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:37:35,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 21:37:35,007 INFO L87 Difference]: Start difference. First operand 1186 states and 1966 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:37:35,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:35,147 INFO L93 Difference]: Finished difference Result 2373 states and 3940 transitions. [2024-11-19 21:37:35,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:37:35,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2024-11-19 21:37:35,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:35,163 INFO L225 Difference]: With dead ends: 2373 [2024-11-19 21:37:35,164 INFO L226 Difference]: Without dead ends: 1195 [2024-11-19 21:37:35,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:37:35,174 INFO L432 NwaCegarLoop]: 987 mSDtfsCounter, 17 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:35,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2953 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:37:35,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2024-11-19 21:37:35,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1195. [2024-11-19 21:37:35,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 938 states have (on average 1.6673773987206824) internal successors, (1564), 967 states have internal predecessors, (1564), 204 states have call successors, (204), 54 states have call predecessors, (204), 52 states have return successors, (212), 199 states have call predecessors, (212), 200 states have call successors, (212) [2024-11-19 21:37:35,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1980 transitions. [2024-11-19 21:37:35,245 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1980 transitions. Word has length 131 [2024-11-19 21:37:35,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:35,247 INFO L471 AbstractCegarLoop]: Abstraction has 1195 states and 1980 transitions. [2024-11-19 21:37:35,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:37:35,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1980 transitions. [2024-11-19 21:37:35,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 21:37:35,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:35,252 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:35,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 21:37:35,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-19 21:37:35,457 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:35,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:35,457 INFO L85 PathProgramCache]: Analyzing trace with hash -912222591, now seen corresponding path program 1 times [2024-11-19 21:37:35,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:35,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294218694] [2024-11-19 21:37:35,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:35,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:37:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 21:37:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:37:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-19 21:37:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:37:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 21:37:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-19 21:37:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-19 21:37:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-19 21:37:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-19 21:37:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-19 21:37:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:35,967 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 21:37:35,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:35,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294218694] [2024-11-19 21:37:35,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294218694] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:35,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828289161] [2024-11-19 21:37:35,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:35,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:35,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:35,972 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:35,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 21:37:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:36,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 1404 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:37:36,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:36,337 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 21:37:36,337 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:36,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828289161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:36,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:36,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2024-11-19 21:37:36,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526437727] [2024-11-19 21:37:36,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:36,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:37:36,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:36,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:37:36,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:37:36,346 INFO L87 Difference]: Start difference. First operand 1195 states and 1980 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:37:36,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:36,625 INFO L93 Difference]: Finished difference Result 2452 states and 4078 transitions. [2024-11-19 21:37:36,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:37:36,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2024-11-19 21:37:36,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:36,635 INFO L225 Difference]: With dead ends: 2452 [2024-11-19 21:37:36,636 INFO L226 Difference]: Without dead ends: 1267 [2024-11-19 21:37:36,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:37:36,645 INFO L432 NwaCegarLoop]: 975 mSDtfsCounter, 122 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:36,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 2848 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 21:37:36,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2024-11-19 21:37:36,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1240. [2024-11-19 21:37:36,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 982 states have (on average 1.6782077393075356) internal successors, (1648), 1011 states have internal predecessors, (1648), 204 states have call successors, (204), 55 states have call predecessors, (204), 53 states have return successors, (212), 199 states have call predecessors, (212), 200 states have call successors, (212) [2024-11-19 21:37:36,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 2064 transitions. [2024-11-19 21:37:36,699 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 2064 transitions. Word has length 133 [2024-11-19 21:37:36,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:36,700 INFO L471 AbstractCegarLoop]: Abstraction has 1240 states and 2064 transitions. [2024-11-19 21:37:36,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:37:36,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 2064 transitions. [2024-11-19 21:37:36,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 21:37:36,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:36,705 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:36,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 21:37:36,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:36,906 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:36,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:36,906 INFO L85 PathProgramCache]: Analyzing trace with hash -734939033, now seen corresponding path program 1 times [2024-11-19 21:37:36,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:36,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598447940] [2024-11-19 21:37:36,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:36,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:37:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:37:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:37:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-19 21:37:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-19 21:37:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 21:37:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-19 21:37:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-19 21:37:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 21:37:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-19 21:37:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-19 21:37:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,410 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 21:37:37,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:37,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598447940] [2024-11-19 21:37:37,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598447940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:37,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799247237] [2024-11-19 21:37:37,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:37,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:37,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:37,414 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:37,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 21:37:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:37,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 1406 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 21:37:37,721 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:37,803 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 21:37:37,804 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:37,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799247237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:37,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:37,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-19 21:37:37,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292967359] [2024-11-19 21:37:37,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:37,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:37:37,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:37,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:37:37,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:37:37,806 INFO L87 Difference]: Start difference. First operand 1240 states and 2064 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:37,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:37,949 INFO L93 Difference]: Finished difference Result 2506 states and 4171 transitions. [2024-11-19 21:37:37,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 21:37:37,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 135 [2024-11-19 21:37:37,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:37,957 INFO L225 Difference]: With dead ends: 2506 [2024-11-19 21:37:37,957 INFO L226 Difference]: Without dead ends: 1276 [2024-11-19 21:37:37,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:37:37,964 INFO L432 NwaCegarLoop]: 986 mSDtfsCounter, 89 mSDsluCounter, 4838 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5824 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:37,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5824 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:37:37,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2024-11-19 21:37:38,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1253. [2024-11-19 21:37:38,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 992 states have (on average 1.6764112903225807) internal successors, (1663), 1023 states have internal predecessors, (1663), 205 states have call successors, (205), 55 states have call predecessors, (205), 55 states have return successors, (217), 200 states have call predecessors, (217), 201 states have call successors, (217) [2024-11-19 21:37:38,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 2085 transitions. [2024-11-19 21:37:38,034 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 2085 transitions. Word has length 135 [2024-11-19 21:37:38,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:38,034 INFO L471 AbstractCegarLoop]: Abstraction has 1253 states and 2085 transitions. [2024-11-19 21:37:38,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:38,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 2085 transitions. [2024-11-19 21:37:38,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-19 21:37:38,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:38,040 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:38,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 21:37:38,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:38,244 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:38,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:38,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1730804487, now seen corresponding path program 1 times [2024-11-19 21:37:38,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:38,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021089586] [2024-11-19 21:37:38,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:38,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:37:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:37:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:37:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-19 21:37:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-19 21:37:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-19 21:37:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-19 21:37:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-19 21:37:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-19 21:37:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 21:37:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-19 21:37:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-19 21:37:38,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:38,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021089586] [2024-11-19 21:37:38,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021089586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:38,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630262192] [2024-11-19 21:37:38,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:38,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:38,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:38,675 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:38,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 21:37:38,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:38,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 21:37:38,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:39,070 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 21:37:39,071 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:39,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630262192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:39,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:39,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-19 21:37:39,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059629345] [2024-11-19 21:37:39,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:39,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:37:39,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:39,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:37:39,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:37:39,073 INFO L87 Difference]: Start difference. First operand 1253 states and 2085 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:39,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:39,203 INFO L93 Difference]: Finished difference Result 2526 states and 4202 transitions. [2024-11-19 21:37:39,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 21:37:39,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 136 [2024-11-19 21:37:39,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:39,211 INFO L225 Difference]: With dead ends: 2526 [2024-11-19 21:37:39,211 INFO L226 Difference]: Without dead ends: 1285 [2024-11-19 21:37:39,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:37:39,218 INFO L432 NwaCegarLoop]: 987 mSDtfsCounter, 100 mSDsluCounter, 4831 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5818 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:39,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5818 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:37:39,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2024-11-19 21:37:39,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1253. [2024-11-19 21:37:39,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 992 states have (on average 1.6764112903225807) internal successors, (1663), 1023 states have internal predecessors, (1663), 205 states have call successors, (205), 55 states have call predecessors, (205), 55 states have return successors, (217), 200 states have call predecessors, (217), 201 states have call successors, (217) [2024-11-19 21:37:39,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 2085 transitions. [2024-11-19 21:37:39,258 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 2085 transitions. Word has length 136 [2024-11-19 21:37:39,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:39,258 INFO L471 AbstractCegarLoop]: Abstraction has 1253 states and 2085 transitions. [2024-11-19 21:37:39,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:39,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 2085 transitions. [2024-11-19 21:37:39,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-19 21:37:39,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:39,263 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:39,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 21:37:39,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:39,464 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:39,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:39,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1665753059, now seen corresponding path program 1 times [2024-11-19 21:37:39,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:39,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540504576] [2024-11-19 21:37:39,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:39,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 21:37:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:37:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:37:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-19 21:37:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-19 21:37:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-19 21:37:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-19 21:37:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-19 21:37:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-19 21:37:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 21:37:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-19 21:37:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:39,755 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-19 21:37:39,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:39,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540504576] [2024-11-19 21:37:39,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540504576] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:39,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859877421] [2024-11-19 21:37:39,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:39,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:39,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:39,759 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:39,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 21:37:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:37:40,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:40,124 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 21:37:40,125 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:40,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859877421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:40,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:40,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-19 21:37:40,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481636613] [2024-11-19 21:37:40,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:40,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:37:40,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:40,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:37:40,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:37:40,128 INFO L87 Difference]: Start difference. First operand 1253 states and 2085 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:37:40,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:40,223 INFO L93 Difference]: Finished difference Result 2511 states and 4179 transitions. [2024-11-19 21:37:40,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:37:40,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 136 [2024-11-19 21:37:40,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:40,233 INFO L225 Difference]: With dead ends: 2511 [2024-11-19 21:37:40,233 INFO L226 Difference]: Without dead ends: 1264 [2024-11-19 21:37:40,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:37:40,242 INFO L432 NwaCegarLoop]: 988 mSDtfsCounter, 12 mSDsluCounter, 1967 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2955 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:40,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2955 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:37:40,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2024-11-19 21:37:40,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1262. [2024-11-19 21:37:40,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1000 states have (on average 1.668) internal successors, (1668), 1031 states have internal predecessors, (1668), 205 states have call successors, (205), 56 states have call predecessors, (205), 56 states have return successors, (216), 200 states have call predecessors, (216), 201 states have call successors, (216) [2024-11-19 21:37:40,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 2089 transitions. [2024-11-19 21:37:40,291 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 2089 transitions. Word has length 136 [2024-11-19 21:37:40,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:40,291 INFO L471 AbstractCegarLoop]: Abstraction has 1262 states and 2089 transitions. [2024-11-19 21:37:40,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:37:40,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 2089 transitions. [2024-11-19 21:37:40,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-19 21:37:40,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:40,301 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:40,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 21:37:40,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:40,506 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:40,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:40,507 INFO L85 PathProgramCache]: Analyzing trace with hash -71834997, now seen corresponding path program 1 times [2024-11-19 21:37:40,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:40,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122537566] [2024-11-19 21:37:40,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:40,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:37:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-19 21:37:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:37:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:37:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-19 21:37:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 21:37:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-19 21:37:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-19 21:37:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-19 21:37:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-19 21:37:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-19 21:37:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:40,931 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-19 21:37:40,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:40,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122537566] [2024-11-19 21:37:40,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122537566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:40,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873272305] [2024-11-19 21:37:40,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:40,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:40,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:40,935 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:40,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 21:37:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:41,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 1408 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 21:37:41,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:41,338 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 21:37:41,338 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:41,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873272305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:41,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:41,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-19 21:37:41,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179903193] [2024-11-19 21:37:41,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:41,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:37:41,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:41,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:37:41,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:37:41,341 INFO L87 Difference]: Start difference. First operand 1262 states and 2089 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:41,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:41,481 INFO L93 Difference]: Finished difference Result 2535 states and 4197 transitions. [2024-11-19 21:37:41,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 21:37:41,482 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 137 [2024-11-19 21:37:41,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:41,491 INFO L225 Difference]: With dead ends: 2535 [2024-11-19 21:37:41,491 INFO L226 Difference]: Without dead ends: 1296 [2024-11-19 21:37:41,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:37:41,498 INFO L432 NwaCegarLoop]: 987 mSDtfsCounter, 111 mSDsluCounter, 4819 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 5806 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:41,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 5806 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:37:41,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2024-11-19 21:37:41,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1262. [2024-11-19 21:37:41,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1000 states have (on average 1.668) internal successors, (1668), 1031 states have internal predecessors, (1668), 205 states have call successors, (205), 56 states have call predecessors, (205), 56 states have return successors, (216), 200 states have call predecessors, (216), 201 states have call successors, (216) [2024-11-19 21:37:41,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 2089 transitions. [2024-11-19 21:37:41,537 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 2089 transitions. Word has length 137 [2024-11-19 21:37:41,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:41,537 INFO L471 AbstractCegarLoop]: Abstraction has 1262 states and 2089 transitions. [2024-11-19 21:37:41,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:41,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 2089 transitions. [2024-11-19 21:37:41,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-19 21:37:41,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:41,542 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:41,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-19 21:37:41,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:41,744 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:41,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:41,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1652210061, now seen corresponding path program 1 times [2024-11-19 21:37:41,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:41,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795096298] [2024-11-19 21:37:41,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:41,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:41,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:37:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-19 21:37:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:37:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:37:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-19 21:37:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 21:37:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-19 21:37:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-19 21:37:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-19 21:37:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-19 21:37:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-19 21:37:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,097 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-19 21:37:42,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:42,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795096298] [2024-11-19 21:37:42,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795096298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:42,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861633170] [2024-11-19 21:37:42,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:42,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:42,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:42,100 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:42,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 21:37:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:42,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 1404 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 21:37:42,439 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:42,515 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 21:37:42,515 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:42,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861633170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:42,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:42,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-19 21:37:42,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829814274] [2024-11-19 21:37:42,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:42,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 21:37:42,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:42,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 21:37:42,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:37:42,517 INFO L87 Difference]: Start difference. First operand 1262 states and 2089 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:42,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:42,698 INFO L93 Difference]: Finished difference Result 2538 states and 4201 transitions. [2024-11-19 21:37:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 21:37:42,698 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 137 [2024-11-19 21:37:42,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:42,708 INFO L225 Difference]: With dead ends: 2538 [2024-11-19 21:37:42,708 INFO L226 Difference]: Without dead ends: 1299 [2024-11-19 21:37:42,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-19 21:37:42,716 INFO L432 NwaCegarLoop]: 977 mSDtfsCounter, 95 mSDsluCounter, 5765 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 6742 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:42,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 6742 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:37:42,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2024-11-19 21:37:42,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1262. [2024-11-19 21:37:42,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1000 states have (on average 1.668) internal successors, (1668), 1031 states have internal predecessors, (1668), 205 states have call successors, (205), 56 states have call predecessors, (205), 56 states have return successors, (216), 200 states have call predecessors, (216), 201 states have call successors, (216) [2024-11-19 21:37:42,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 2089 transitions. [2024-11-19 21:37:42,759 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 2089 transitions. Word has length 137 [2024-11-19 21:37:42,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:42,759 INFO L471 AbstractCegarLoop]: Abstraction has 1262 states and 2089 transitions. [2024-11-19 21:37:42,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:42,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 2089 transitions. [2024-11-19 21:37:42,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-19 21:37:42,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:42,764 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:42,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-19 21:37:42,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-19 21:37:42,965 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:42,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:42,965 INFO L85 PathProgramCache]: Analyzing trace with hash -421286357, now seen corresponding path program 1 times [2024-11-19 21:37:42,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:42,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748966252] [2024-11-19 21:37:42,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:42,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:37:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-19 21:37:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:37:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 21:37:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-19 21:37:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:43,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-19 21:37:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-19 21:37:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-19 21:37:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-19 21:37:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-19 21:37:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-19 21:37:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,313 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-19 21:37:43,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:43,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748966252] [2024-11-19 21:37:43,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748966252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:43,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564284768] [2024-11-19 21:37:43,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:43,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:43,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:43,316 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:43,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 21:37:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:43,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 1405 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 21:37:43,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:43,682 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 21:37:43,682 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:43,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564284768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:43,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:43,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-19 21:37:43,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730994528] [2024-11-19 21:37:43,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:43,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 21:37:43,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:43,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 21:37:43,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:37:43,684 INFO L87 Difference]: Start difference. First operand 1262 states and 2089 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:43,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:43,858 INFO L93 Difference]: Finished difference Result 2538 states and 4201 transitions. [2024-11-19 21:37:43,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 21:37:43,859 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 138 [2024-11-19 21:37:43,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:43,869 INFO L225 Difference]: With dead ends: 2538 [2024-11-19 21:37:43,869 INFO L226 Difference]: Without dead ends: 1299 [2024-11-19 21:37:43,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-19 21:37:43,877 INFO L432 NwaCegarLoop]: 977 mSDtfsCounter, 105 mSDsluCounter, 5753 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 6730 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:43,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 6730 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:37:43,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2024-11-19 21:37:43,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1262. [2024-11-19 21:37:43,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1000 states have (on average 1.668) internal successors, (1668), 1031 states have internal predecessors, (1668), 205 states have call successors, (205), 56 states have call predecessors, (205), 56 states have return successors, (216), 200 states have call predecessors, (216), 201 states have call successors, (216) [2024-11-19 21:37:43,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 2089 transitions. [2024-11-19 21:37:43,921 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 2089 transitions. Word has length 138 [2024-11-19 21:37:43,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:43,921 INFO L471 AbstractCegarLoop]: Abstraction has 1262 states and 2089 transitions. [2024-11-19 21:37:43,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:43,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 2089 transitions. [2024-11-19 21:37:43,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 21:37:43,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:43,926 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:43,937 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 21:37:44,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:44,128 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:44,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:44,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1895286254, now seen corresponding path program 1 times [2024-11-19 21:37:44,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:44,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37476193] [2024-11-19 21:37:44,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:44,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:37:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:37:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:37:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:37:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-19 21:37:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-19 21:37:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 21:37:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-19 21:37:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 21:37:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-19 21:37:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-19 21:37:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,473 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-19 21:37:44,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:44,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37476193] [2024-11-19 21:37:44,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37476193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:44,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411728112] [2024-11-19 21:37:44,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:44,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:44,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:44,476 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:44,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 21:37:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:44,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 1406 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 21:37:44,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:44,858 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 21:37:44,858 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:44,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411728112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:44,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:44,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-19 21:37:44,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818518822] [2024-11-19 21:37:44,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:44,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 21:37:44,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:44,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 21:37:44,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:37:44,860 INFO L87 Difference]: Start difference. First operand 1262 states and 2089 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:45,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:45,028 INFO L93 Difference]: Finished difference Result 2529 states and 4186 transitions. [2024-11-19 21:37:45,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 21:37:45,028 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 139 [2024-11-19 21:37:45,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:45,036 INFO L225 Difference]: With dead ends: 2529 [2024-11-19 21:37:45,037 INFO L226 Difference]: Without dead ends: 1290 [2024-11-19 21:37:45,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-19 21:37:45,042 INFO L432 NwaCegarLoop]: 977 mSDtfsCounter, 115 mSDsluCounter, 5741 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 6718 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:45,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 6718 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:37:45,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2024-11-19 21:37:45,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1262. [2024-11-19 21:37:45,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1000 states have (on average 1.668) internal successors, (1668), 1031 states have internal predecessors, (1668), 205 states have call successors, (205), 56 states have call predecessors, (205), 56 states have return successors, (216), 200 states have call predecessors, (216), 201 states have call successors, (216) [2024-11-19 21:37:45,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 2089 transitions. [2024-11-19 21:37:45,089 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 2089 transitions. Word has length 139 [2024-11-19 21:37:45,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:45,090 INFO L471 AbstractCegarLoop]: Abstraction has 1262 states and 2089 transitions. [2024-11-19 21:37:45,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:45,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 2089 transitions. [2024-11-19 21:37:45,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 21:37:45,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:45,095 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:45,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-19 21:37:45,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-19 21:37:45,296 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:45,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:45,296 INFO L85 PathProgramCache]: Analyzing trace with hash 369812080, now seen corresponding path program 1 times [2024-11-19 21:37:45,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:45,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023001307] [2024-11-19 21:37:45,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:45,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:37:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:37:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:37:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:37:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-19 21:37:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-19 21:37:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 21:37:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-19 21:37:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 21:37:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-19 21:37:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-19 21:37:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,571 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-19 21:37:45,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:45,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023001307] [2024-11-19 21:37:45,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023001307] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:45,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99534756] [2024-11-19 21:37:45,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:45,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:45,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:45,574 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:45,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 21:37:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:45,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 1409 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:37:45,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:45,908 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 21:37:45,908 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:45,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99534756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:45,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:45,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-19 21:37:45,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298418751] [2024-11-19 21:37:45,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:45,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:37:45,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:45,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:37:45,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:37:45,911 INFO L87 Difference]: Start difference. First operand 1262 states and 2089 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:37:45,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:45,999 INFO L93 Difference]: Finished difference Result 2490 states and 4130 transitions. [2024-11-19 21:37:45,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:37:46,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2024-11-19 21:37:46,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:46,010 INFO L225 Difference]: With dead ends: 2490 [2024-11-19 21:37:46,010 INFO L226 Difference]: Without dead ends: 1262 [2024-11-19 21:37:46,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:37:46,018 INFO L432 NwaCegarLoop]: 985 mSDtfsCounter, 20 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2949 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:46,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2949 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:37:46,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2024-11-19 21:37:46,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1262. [2024-11-19 21:37:46,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1000 states have (on average 1.663) internal successors, (1663), 1031 states have internal predecessors, (1663), 205 states have call successors, (205), 56 states have call predecessors, (205), 56 states have return successors, (216), 200 states have call predecessors, (216), 201 states have call successors, (216) [2024-11-19 21:37:46,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 2084 transitions. [2024-11-19 21:37:46,075 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 2084 transitions. Word has length 139 [2024-11-19 21:37:46,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:46,077 INFO L471 AbstractCegarLoop]: Abstraction has 1262 states and 2084 transitions. [2024-11-19 21:37:46,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:37:46,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 2084 transitions. [2024-11-19 21:37:46,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 21:37:46,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:46,083 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:46,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-19 21:37:46,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-19 21:37:46,283 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:46,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:46,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1645853018, now seen corresponding path program 1 times [2024-11-19 21:37:46,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:46,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015856891] [2024-11-19 21:37:46,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:46,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:37:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:37:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:37:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 21:37:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-19 21:37:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-19 21:37:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-19 21:37:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-19 21:37:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-19 21:37:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 21:37:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 21:37:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 21:37:46,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:46,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015856891] [2024-11-19 21:37:46,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015856891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:46,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207125591] [2024-11-19 21:37:46,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:46,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:46,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:46,620 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:46,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 21:37:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:46,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 1410 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:37:46,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:46,937 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 21:37:46,937 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:46,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207125591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:46,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:46,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2024-11-19 21:37:46,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792158525] [2024-11-19 21:37:46,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:46,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:37:46,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:46,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:37:46,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:37:46,939 INFO L87 Difference]: Start difference. First operand 1262 states and 2084 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:37:47,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:47,103 INFO L93 Difference]: Finished difference Result 2528 states and 4184 transitions. [2024-11-19 21:37:47,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:37:47,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 140 [2024-11-19 21:37:47,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:47,114 INFO L225 Difference]: With dead ends: 2528 [2024-11-19 21:37:47,114 INFO L226 Difference]: Without dead ends: 1358 [2024-11-19 21:37:47,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:37:47,120 INFO L432 NwaCegarLoop]: 950 mSDtfsCounter, 171 mSDsluCounter, 1871 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 2821 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:47,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 2821 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:37:47,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2024-11-19 21:37:47,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 1307. [2024-11-19 21:37:47,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 1044 states have (on average 1.6733716475095786) internal successors, (1747), 1075 states have internal predecessors, (1747), 205 states have call successors, (205), 57 states have call predecessors, (205), 57 states have return successors, (215), 200 states have call predecessors, (215), 201 states have call successors, (215) [2024-11-19 21:37:47,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 2167 transitions. [2024-11-19 21:37:47,165 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 2167 transitions. Word has length 140 [2024-11-19 21:37:47,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:47,167 INFO L471 AbstractCegarLoop]: Abstraction has 1307 states and 2167 transitions. [2024-11-19 21:37:47,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:37:47,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 2167 transitions. [2024-11-19 21:37:47,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-19 21:37:47,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:47,172 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:47,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-19 21:37:47,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-19 21:37:47,373 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:47,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:47,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1758276080, now seen corresponding path program 1 times [2024-11-19 21:37:47,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:47,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836442346] [2024-11-19 21:37:47,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:47,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:37:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:37:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:37:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-19 21:37:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:37:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-19 21:37:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-19 21:37:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 21:37:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-19 21:37:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-19 21:37:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-19 21:37:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:47,711 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 21:37:47,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:47,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836442346] [2024-11-19 21:37:47,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836442346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:47,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22993047] [2024-11-19 21:37:47,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:47,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:47,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:47,715 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:47,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-19 21:37:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 21:37:48,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:48,091 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-19 21:37:48,091 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:48,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22993047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:48,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:48,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2024-11-19 21:37:48,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943034733] [2024-11-19 21:37:48,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:48,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:37:48,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:48,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:37:48,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-11-19 21:37:48,093 INFO L87 Difference]: Start difference. First operand 1307 states and 2167 transitions. Second operand has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:48,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:48,207 INFO L93 Difference]: Finished difference Result 2523 states and 4173 transitions. [2024-11-19 21:37:48,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 21:37:48,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 141 [2024-11-19 21:37:48,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:48,216 INFO L225 Difference]: With dead ends: 2523 [2024-11-19 21:37:48,216 INFO L226 Difference]: Without dead ends: 1353 [2024-11-19 21:37:48,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-19 21:37:48,222 INFO L432 NwaCegarLoop]: 988 mSDtfsCounter, 89 mSDsluCounter, 4851 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5839 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:48,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5839 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:37:48,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2024-11-19 21:37:48,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1320. [2024-11-19 21:37:48,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1054 states have (on average 1.6717267552182162) internal successors, (1762), 1087 states have internal predecessors, (1762), 206 states have call successors, (206), 57 states have call predecessors, (206), 59 states have return successors, (218), 201 states have call predecessors, (218), 202 states have call successors, (218) [2024-11-19 21:37:48,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 2186 transitions. [2024-11-19 21:37:48,275 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 2186 transitions. Word has length 141 [2024-11-19 21:37:48,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:48,275 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 2186 transitions. [2024-11-19 21:37:48,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:48,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 2186 transitions. [2024-11-19 21:37:48,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 21:37:48,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:48,280 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:48,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-19 21:37:48,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-19 21:37:48,481 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:48,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:48,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1726866560, now seen corresponding path program 1 times [2024-11-19 21:37:48,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:48,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220632558] [2024-11-19 21:37:48,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:48,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:37:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:37:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:37:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-19 21:37:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-19 21:37:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-19 21:37:48,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 21:37:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-19 21:37:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-19 21:37:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-19 21:37:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-19 21:37:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:48,778 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-19 21:37:48,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:48,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220632558] [2024-11-19 21:37:48,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220632558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:48,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856056565] [2024-11-19 21:37:48,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:48,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:48,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:48,782 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:48,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-19 21:37:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 1412 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 21:37:49,073 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:49,131 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-19 21:37:49,132 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:49,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856056565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:49,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:49,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-19 21:37:49,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223121066] [2024-11-19 21:37:49,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:49,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:37:49,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:49,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:37:49,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-19 21:37:49,134 INFO L87 Difference]: Start difference. First operand 1320 states and 2186 transitions. Second operand has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:49,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:49,249 INFO L93 Difference]: Finished difference Result 2532 states and 4187 transitions. [2024-11-19 21:37:49,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 21:37:49,250 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 142 [2024-11-19 21:37:49,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:49,259 INFO L225 Difference]: With dead ends: 2532 [2024-11-19 21:37:49,259 INFO L226 Difference]: Without dead ends: 1362 [2024-11-19 21:37:49,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-19 21:37:49,265 INFO L432 NwaCegarLoop]: 988 mSDtfsCounter, 100 mSDsluCounter, 4839 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5827 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:49,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5827 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:37:49,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2024-11-19 21:37:49,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1320. [2024-11-19 21:37:49,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1054 states have (on average 1.6717267552182162) internal successors, (1762), 1087 states have internal predecessors, (1762), 206 states have call successors, (206), 57 states have call predecessors, (206), 59 states have return successors, (218), 201 states have call predecessors, (218), 202 states have call successors, (218) [2024-11-19 21:37:49,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 2186 transitions. [2024-11-19 21:37:49,306 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 2186 transitions. Word has length 142 [2024-11-19 21:37:49,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:49,307 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 2186 transitions. [2024-11-19 21:37:49,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:49,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 2186 transitions. [2024-11-19 21:37:49,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 21:37:49,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:49,312 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:49,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-19 21:37:49,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:49,513 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:49,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:49,513 INFO L85 PathProgramCache]: Analyzing trace with hash -672393216, now seen corresponding path program 1 times [2024-11-19 21:37:49,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:49,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381975695] [2024-11-19 21:37:49,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:49,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:49,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:37:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:37:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:37:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-19 21:37:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-19 21:37:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-19 21:37:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 21:37:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-19 21:37:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-19 21:37:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-19 21:37:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-19 21:37:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:49,798 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 21:37:49,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:49,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381975695] [2024-11-19 21:37:49,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381975695] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:49,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903842216] [2024-11-19 21:37:49,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:49,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:49,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:49,801 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:49,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-19 21:37:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 1408 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 21:37:50,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-19 21:37:50,212 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:50,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903842216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:50,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:50,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-19 21:37:50,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402157947] [2024-11-19 21:37:50,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:50,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 21:37:50,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:50,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 21:37:50,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-11-19 21:37:50,215 INFO L87 Difference]: Start difference. First operand 1320 states and 2186 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:50,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:50,375 INFO L93 Difference]: Finished difference Result 2535 states and 4190 transitions. [2024-11-19 21:37:50,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 21:37:50,375 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 142 [2024-11-19 21:37:50,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:50,384 INFO L225 Difference]: With dead ends: 2535 [2024-11-19 21:37:50,384 INFO L226 Difference]: Without dead ends: 1365 [2024-11-19 21:37:50,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2024-11-19 21:37:50,389 INFO L432 NwaCegarLoop]: 977 mSDtfsCounter, 96 mSDsluCounter, 5768 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 6745 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:50,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 6745 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:37:50,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2024-11-19 21:37:50,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1320. [2024-11-19 21:37:50,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1054 states have (on average 1.6717267552182162) internal successors, (1762), 1087 states have internal predecessors, (1762), 206 states have call successors, (206), 57 states have call predecessors, (206), 59 states have return successors, (218), 201 states have call predecessors, (218), 202 states have call successors, (218) [2024-11-19 21:37:50,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 2186 transitions. [2024-11-19 21:37:50,428 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 2186 transitions. Word has length 142 [2024-11-19 21:37:50,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:50,428 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 2186 transitions. [2024-11-19 21:37:50,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:50,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 2186 transitions. [2024-11-19 21:37:50,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 21:37:50,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:50,433 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:50,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-19 21:37:50,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 21:37:50,634 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:50,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:50,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1573592362, now seen corresponding path program 1 times [2024-11-19 21:37:50,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:50,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106962313] [2024-11-19 21:37:50,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:50,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:37:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:37:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 21:37:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-19 21:37:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-19 21:37:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-19 21:37:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 21:37:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-19 21:37:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-19 21:37:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-19 21:37:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-19 21:37:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:50,905 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-19 21:37:50,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:50,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106962313] [2024-11-19 21:37:50,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106962313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:50,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484648254] [2024-11-19 21:37:50,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:50,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:50,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:50,909 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:50,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-19 21:37:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 1412 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:37:51,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:51,225 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 21:37:51,225 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:51,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484648254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:51,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:51,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-19 21:37:51,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864998272] [2024-11-19 21:37:51,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:51,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:37:51,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:51,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:37:51,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:37:51,229 INFO L87 Difference]: Start difference. First operand 1320 states and 2186 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:37:51,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:51,287 INFO L93 Difference]: Finished difference Result 2566 states and 4253 transitions. [2024-11-19 21:37:51,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 21:37:51,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 142 [2024-11-19 21:37:51,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:51,296 INFO L225 Difference]: With dead ends: 2566 [2024-11-19 21:37:51,296 INFO L226 Difference]: Without dead ends: 1320 [2024-11-19 21:37:51,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:37:51,301 INFO L432 NwaCegarLoop]: 989 mSDtfsCounter, 2 mSDsluCounter, 1969 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2958 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:51,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2958 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:37:51,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-11-19 21:37:51,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2024-11-19 21:37:51,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1054 states have (on average 1.6688804554079697) internal successors, (1759), 1087 states have internal predecessors, (1759), 206 states have call successors, (206), 57 states have call predecessors, (206), 59 states have return successors, (218), 201 states have call predecessors, (218), 202 states have call successors, (218) [2024-11-19 21:37:51,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 2183 transitions. [2024-11-19 21:37:51,346 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 2183 transitions. Word has length 142 [2024-11-19 21:37:51,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:51,346 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 2183 transitions. [2024-11-19 21:37:51,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:37:51,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 2183 transitions. [2024-11-19 21:37:51,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-19 21:37:51,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:51,351 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:51,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-19 21:37:51,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-19 21:37:51,552 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:51,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:51,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1000073490, now seen corresponding path program 1 times [2024-11-19 21:37:51,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:51,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320445278] [2024-11-19 21:37:51,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:51,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:37:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:37:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:37:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-19 21:37:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-19 21:37:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-19 21:37:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-19 21:37:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-19 21:37:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-19 21:37:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-19 21:37:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-19 21:37:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:51,951 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 21:37:51,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:51,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320445278] [2024-11-19 21:37:51,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320445278] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:51,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699256942] [2024-11-19 21:37:51,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:51,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:51,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:51,954 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:51,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-19 21:37:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:52,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 1409 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 21:37:52,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:52,373 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-19 21:37:52,373 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:52,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699256942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:52,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:52,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-19 21:37:52,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263657827] [2024-11-19 21:37:52,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:52,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 21:37:52,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:52,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 21:37:52,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-11-19 21:37:52,375 INFO L87 Difference]: Start difference. First operand 1320 states and 2183 transitions. Second operand has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:52,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:52,536 INFO L93 Difference]: Finished difference Result 2526 states and 4173 transitions. [2024-11-19 21:37:52,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 21:37:52,537 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 143 [2024-11-19 21:37:52,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:52,546 INFO L225 Difference]: With dead ends: 2526 [2024-11-19 21:37:52,546 INFO L226 Difference]: Without dead ends: 1356 [2024-11-19 21:37:52,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2024-11-19 21:37:52,551 INFO L432 NwaCegarLoop]: 975 mSDtfsCounter, 106 mSDsluCounter, 5747 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 6722 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:52,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 6722 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:37:52,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356 states. [2024-11-19 21:37:52,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356 to 1320. [2024-11-19 21:37:52,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1054 states have (on average 1.6688804554079697) internal successors, (1759), 1087 states have internal predecessors, (1759), 206 states have call successors, (206), 57 states have call predecessors, (206), 59 states have return successors, (218), 201 states have call predecessors, (218), 202 states have call successors, (218) [2024-11-19 21:37:52,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 2183 transitions. [2024-11-19 21:37:52,598 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 2183 transitions. Word has length 143 [2024-11-19 21:37:52,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:52,599 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 2183 transitions. [2024-11-19 21:37:52,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:52,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 2183 transitions. [2024-11-19 21:37:52,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 21:37:52,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:52,604 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:52,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-19 21:37:52,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-19 21:37:52,805 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:52,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:52,805 INFO L85 PathProgramCache]: Analyzing trace with hash 390429573, now seen corresponding path program 1 times [2024-11-19 21:37:52,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:52,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474293760] [2024-11-19 21:37:52,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:52,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:52,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:52,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:37:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:52,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:37:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:53,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:53,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:37:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:53,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-19 21:37:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:53,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 21:37:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:53,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:53,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-19 21:37:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:53,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-19 21:37:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:53,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:53,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:53,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:37:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:53,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-19 21:37:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:53,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-19 21:37:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:53,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-19 21:37:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:53,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-19 21:37:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:53,085 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 21:37:53,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:53,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474293760] [2024-11-19 21:37:53,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474293760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:53,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021036294] [2024-11-19 21:37:53,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:53,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:53,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:53,087 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:53,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-19 21:37:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:53,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 1410 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 21:37:53,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:53,482 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 21:37:53,482 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:53,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021036294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:53,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:53,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 14 [2024-11-19 21:37:53,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427923788] [2024-11-19 21:37:53,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:53,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:37:53,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:53,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:37:53,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:37:53,484 INFO L87 Difference]: Start difference. First operand 1320 states and 2183 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:37:53,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:53,972 INFO L93 Difference]: Finished difference Result 2502 states and 4199 transitions. [2024-11-19 21:37:53,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:37:53,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2024-11-19 21:37:53,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:53,980 INFO L225 Difference]: With dead ends: 2502 [2024-11-19 21:37:53,980 INFO L226 Difference]: Without dead ends: 1336 [2024-11-19 21:37:53,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:37:53,986 INFO L432 NwaCegarLoop]: 979 mSDtfsCounter, 944 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 2517 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:53,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [948 Valid, 2517 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 21:37:53,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2024-11-19 21:37:54,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1336. [2024-11-19 21:37:54,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1068 states have (on average 1.6694756554307115) internal successors, (1783), 1101 states have internal predecessors, (1783), 206 states have call successors, (206), 59 states have call predecessors, (206), 61 states have return successors, (220), 201 states have call predecessors, (220), 202 states have call successors, (220) [2024-11-19 21:37:54,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 2209 transitions. [2024-11-19 21:37:54,028 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 2209 transitions. Word has length 144 [2024-11-19 21:37:54,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:54,029 INFO L471 AbstractCegarLoop]: Abstraction has 1336 states and 2209 transitions. [2024-11-19 21:37:54,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:37:54,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 2209 transitions. [2024-11-19 21:37:54,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 21:37:54,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:54,033 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:54,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-19 21:37:54,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 21:37:54,233 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:54,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:54,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1499145549, now seen corresponding path program 1 times [2024-11-19 21:37:54,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:54,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950699805] [2024-11-19 21:37:54,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:54,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:37:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:37:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:37:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-19 21:37:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 21:37:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-19 21:37:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-19 21:37:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:37:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-19 21:37:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-19 21:37:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-19 21:37:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-19 21:37:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,476 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 21:37:54,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:54,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950699805] [2024-11-19 21:37:54,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950699805] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:54,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906912701] [2024-11-19 21:37:54,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:54,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:54,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:54,479 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:54,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-19 21:37:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:54,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 1412 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 21:37:54,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 21:37:54,974 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:54,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906912701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:54,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:54,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-19 21:37:54,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493015088] [2024-11-19 21:37:54,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:54,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:37:54,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:54,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:37:54,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:37:54,976 INFO L87 Difference]: Start difference. First operand 1336 states and 2209 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:37:55,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:55,418 INFO L93 Difference]: Finished difference Result 2534 states and 4245 transitions. [2024-11-19 21:37:55,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:37:55,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 146 [2024-11-19 21:37:55,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:55,425 INFO L225 Difference]: With dead ends: 2534 [2024-11-19 21:37:55,425 INFO L226 Difference]: Without dead ends: 1352 [2024-11-19 21:37:55,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:37:55,429 INFO L432 NwaCegarLoop]: 976 mSDtfsCounter, 938 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:55,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 2514 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 21:37:55,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2024-11-19 21:37:55,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1352. [2024-11-19 21:37:55,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1352 states, 1082 states have (on average 1.6700554528650646) internal successors, (1807), 1115 states have internal predecessors, (1807), 206 states have call successors, (206), 61 states have call predecessors, (206), 63 states have return successors, (222), 201 states have call predecessors, (222), 202 states have call successors, (222) [2024-11-19 21:37:55,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 2235 transitions. [2024-11-19 21:37:55,477 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 2235 transitions. Word has length 146 [2024-11-19 21:37:55,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:55,477 INFO L471 AbstractCegarLoop]: Abstraction has 1352 states and 2235 transitions. [2024-11-19 21:37:55,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:37:55,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 2235 transitions. [2024-11-19 21:37:55,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 21:37:55,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:55,481 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:55,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-19 21:37:55,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:55,682 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:55,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:55,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1443833531, now seen corresponding path program 1 times [2024-11-19 21:37:55,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:55,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063534308] [2024-11-19 21:37:55,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:55,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:55,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:37:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:37:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:37:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-19 21:37:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 21:37:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-19 21:37:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 21:37:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 21:37:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-19 21:37:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-19 21:37:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-19 21:37:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-19 21:37:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:55,907 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-19 21:37:55,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:55,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063534308] [2024-11-19 21:37:55,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063534308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:55,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148750882] [2024-11-19 21:37:55,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:55,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:55,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:55,910 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:55,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-19 21:37:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:56,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 21:37:56,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:56,284 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 21:37:56,284 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:56,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148750882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:56,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:56,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-19 21:37:56,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516053704] [2024-11-19 21:37:56,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:56,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:37:56,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:56,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:37:56,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:37:56,286 INFO L87 Difference]: Start difference. First operand 1352 states and 2235 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:37:56,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:56,692 INFO L93 Difference]: Finished difference Result 2566 states and 4291 transitions. [2024-11-19 21:37:56,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:37:56,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2024-11-19 21:37:56,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:56,701 INFO L225 Difference]: With dead ends: 2566 [2024-11-19 21:37:56,701 INFO L226 Difference]: Without dead ends: 1368 [2024-11-19 21:37:56,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:37:56,707 INFO L432 NwaCegarLoop]: 973 mSDtfsCounter, 935 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:56,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 2511 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 21:37:56,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2024-11-19 21:37:56,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1368. [2024-11-19 21:37:56,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1096 states have (on average 1.6706204379562044) internal successors, (1831), 1129 states have internal predecessors, (1831), 206 states have call successors, (206), 63 states have call predecessors, (206), 65 states have return successors, (224), 201 states have call predecessors, (224), 202 states have call successors, (224) [2024-11-19 21:37:56,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 2261 transitions. [2024-11-19 21:37:56,747 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 2261 transitions. Word has length 148 [2024-11-19 21:37:56,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:56,748 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 2261 transitions. [2024-11-19 21:37:56,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:37:56,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 2261 transitions. [2024-11-19 21:37:56,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 21:37:56,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:56,752 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:56,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-19 21:37:56,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:56,952 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:56,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:56,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1293801595, now seen corresponding path program 1 times [2024-11-19 21:37:56,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:56,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698197119] [2024-11-19 21:37:56,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:56,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:56,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:37:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:37:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:37:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-19 21:37:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 21:37:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-19 21:37:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-19 21:37:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-19 21:37:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-19 21:37:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-19 21:37:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-19 21:37:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-19 21:37:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,186 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-19 21:37:57,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:57,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698197119] [2024-11-19 21:37:57,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698197119] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:57,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19945768] [2024-11-19 21:37:57,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:57,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:57,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:57,191 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:57,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-19 21:37:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:57,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 1416 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 21:37:57,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:57,604 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 21:37:57,604 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:57,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19945768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:57,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:57,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-19 21:37:57,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911486050] [2024-11-19 21:37:57,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:57,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:37:57,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:57,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:37:57,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:37:57,606 INFO L87 Difference]: Start difference. First operand 1368 states and 2261 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:37:58,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:58,020 INFO L93 Difference]: Finished difference Result 2598 states and 4337 transitions. [2024-11-19 21:37:58,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:37:58,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2024-11-19 21:37:58,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:58,027 INFO L225 Difference]: With dead ends: 2598 [2024-11-19 21:37:58,027 INFO L226 Difference]: Without dead ends: 1384 [2024-11-19 21:37:58,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:37:58,032 INFO L432 NwaCegarLoop]: 970 mSDtfsCounter, 913 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 2508 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:58,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 2508 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 21:37:58,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2024-11-19 21:37:58,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2024-11-19 21:37:58,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1110 states have (on average 1.6711711711711712) internal successors, (1855), 1143 states have internal predecessors, (1855), 206 states have call successors, (206), 65 states have call predecessors, (206), 67 states have return successors, (226), 201 states have call predecessors, (226), 202 states have call successors, (226) [2024-11-19 21:37:58,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 2287 transitions. [2024-11-19 21:37:58,079 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 2287 transitions. Word has length 150 [2024-11-19 21:37:58,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:58,079 INFO L471 AbstractCegarLoop]: Abstraction has 1384 states and 2287 transitions. [2024-11-19 21:37:58,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:37:58,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 2287 transitions. [2024-11-19 21:37:58,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 21:37:58,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:58,083 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:58,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-19 21:37:58,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:58,284 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:58,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:58,284 INFO L85 PathProgramCache]: Analyzing trace with hash -575624955, now seen corresponding path program 1 times [2024-11-19 21:37:58,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:58,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231299809] [2024-11-19 21:37:58,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:58,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:37:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:37:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:37:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-19 21:37:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 21:37:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 21:37:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-19 21:37:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:37:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-19 21:37:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-19 21:37:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-19 21:37:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-19 21:37:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,478 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-19 21:37:58,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:58,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231299809] [2024-11-19 21:37:58,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231299809] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:58,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643898164] [2024-11-19 21:37:58,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:58,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:58,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:58,480 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:58,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-19 21:37:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:58,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 1418 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 21:37:58,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:58,781 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-19 21:37:58,781 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:58,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643898164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:58,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:58,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2024-11-19 21:37:58,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358731152] [2024-11-19 21:37:58,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:58,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:37:58,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:58,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:37:58,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 21:37:58,783 INFO L87 Difference]: Start difference. First operand 1384 states and 2287 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:37:58,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:58,880 INFO L93 Difference]: Finished difference Result 2745 states and 4550 transitions. [2024-11-19 21:37:58,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:37:58,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2024-11-19 21:37:58,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:58,892 INFO L225 Difference]: With dead ends: 2745 [2024-11-19 21:37:58,892 INFO L226 Difference]: Without dead ends: 1349 [2024-11-19 21:37:58,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:37:58,899 INFO L432 NwaCegarLoop]: 986 mSDtfsCounter, 7 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:58,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2950 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:37:58,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2024-11-19 21:37:58,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1349. [2024-11-19 21:37:58,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1078 states have (on average 1.6586270871985158) internal successors, (1788), 1109 states have internal predecessors, (1788), 205 states have call successors, (205), 65 states have call predecessors, (205), 65 states have return successors, (223), 200 states have call predecessors, (223), 201 states have call successors, (223) [2024-11-19 21:37:58,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 2216 transitions. [2024-11-19 21:37:58,960 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 2216 transitions. Word has length 152 [2024-11-19 21:37:58,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:37:58,961 INFO L471 AbstractCegarLoop]: Abstraction has 1349 states and 2216 transitions. [2024-11-19 21:37:58,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:37:58,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 2216 transitions. [2024-11-19 21:37:58,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 21:37:58,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:37:58,966 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:37:58,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-19 21:37:59,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:59,167 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:37:59,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:37:59,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1868640165, now seen corresponding path program 1 times [2024-11-19 21:37:59,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:37:59,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132212521] [2024-11-19 21:37:59,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:59,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:37:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:37:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:37:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 21:37:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:37:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-19 21:37:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 21:37:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-19 21:37:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-19 21:37:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:37:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:37:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-19 21:37:59,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-19 21:37:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-19 21:37:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-19 21:37:59,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,500 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-19 21:37:59,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:37:59,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132212521] [2024-11-19 21:37:59,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132212521] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:37:59,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983618690] [2024-11-19 21:37:59,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:37:59,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:37:59,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:37:59,503 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:37:59,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-19 21:37:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:37:59,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 1416 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 21:37:59,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:37:59,862 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 21:37:59,862 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:37:59,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983618690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:37:59,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:37:59,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 11 [2024-11-19 21:37:59,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812064029] [2024-11-19 21:37:59,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:37:59,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:37:59,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:37:59,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:37:59,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-19 21:37:59,864 INFO L87 Difference]: Start difference. First operand 1349 states and 2216 transitions. Second operand has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:37:59,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:37:59,964 INFO L93 Difference]: Finished difference Result 2704 states and 4440 transitions. [2024-11-19 21:37:59,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 21:37:59,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 153 [2024-11-19 21:37:59,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:37:59,974 INFO L225 Difference]: With dead ends: 2704 [2024-11-19 21:37:59,974 INFO L226 Difference]: Without dead ends: 1372 [2024-11-19 21:37:59,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-19 21:37:59,979 INFO L432 NwaCegarLoop]: 996 mSDtfsCounter, 122 mSDsluCounter, 4841 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 5837 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:37:59,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 5837 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:37:59,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2024-11-19 21:38:00,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1342. [2024-11-19 21:38:00,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1071 states have (on average 1.6545284780578897) internal successors, (1772), 1102 states have internal predecessors, (1772), 205 states have call successors, (205), 65 states have call predecessors, (205), 65 states have return successors, (223), 200 states have call predecessors, (223), 201 states have call successors, (223) [2024-11-19 21:38:00,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 2200 transitions. [2024-11-19 21:38:00,024 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 2200 transitions. Word has length 153 [2024-11-19 21:38:00,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:38:00,025 INFO L471 AbstractCegarLoop]: Abstraction has 1342 states and 2200 transitions. [2024-11-19 21:38:00,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:38:00,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 2200 transitions. [2024-11-19 21:38:00,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-19 21:38:00,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:38:00,029 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:38:00,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-19 21:38:00,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:38:00,230 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:38:00,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:38:00,230 INFO L85 PathProgramCache]: Analyzing trace with hash 2099461059, now seen corresponding path program 1 times [2024-11-19 21:38:00,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:38:00,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335593435] [2024-11-19 21:38:00,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:00,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:38:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:38:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:38:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 21:38:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:38:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-19 21:38:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-19 21:38:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-19 21:38:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-19 21:38:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:38:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-19 21:38:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-19 21:38:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-19 21:38:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-19 21:38:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:00,519 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-19 21:38:00,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:38:00,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335593435] [2024-11-19 21:38:00,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335593435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:38:00,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:38:00,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 21:38:00,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083218747] [2024-11-19 21:38:00,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:38:00,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 21:38:00,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:38:00,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 21:38:00,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 21:38:00,521 INFO L87 Difference]: Start difference. First operand 1342 states and 2200 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:38:03,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:38:03,935 INFO L93 Difference]: Finished difference Result 3071 states and 5081 transitions. [2024-11-19 21:38:03,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:38:03,936 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 154 [2024-11-19 21:38:03,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:38:03,946 INFO L225 Difference]: With dead ends: 3071 [2024-11-19 21:38:03,946 INFO L226 Difference]: Without dead ends: 1831 [2024-11-19 21:38:03,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-19 21:38:03,953 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 1568 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 2669 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1623 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 3103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 2669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-19 21:38:03,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1623 Valid, 1391 Invalid, 3103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 2669 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-19 21:38:03,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2024-11-19 21:38:04,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1404. [2024-11-19 21:38:04,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1119 states have (on average 1.647006255585344) internal successors, (1843), 1150 states have internal predecessors, (1843), 217 states have call successors, (217), 65 states have call predecessors, (217), 67 states have return successors, (244), 212 states have call predecessors, (244), 213 states have call successors, (244) [2024-11-19 21:38:04,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 2304 transitions. [2024-11-19 21:38:04,183 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 2304 transitions. Word has length 154 [2024-11-19 21:38:04,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:38:04,183 INFO L471 AbstractCegarLoop]: Abstraction has 1404 states and 2304 transitions. [2024-11-19 21:38:04,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:38:04,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 2304 transitions. [2024-11-19 21:38:04,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-19 21:38:04,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:38:04,187 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:38:04,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 21:38:04,187 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:38:04,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:38:04,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1386541935, now seen corresponding path program 1 times [2024-11-19 21:38:04,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:38:04,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099864810] [2024-11-19 21:38:04,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:04,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:38:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:38:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:38:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 21:38:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:38:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-19 21:38:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-19 21:38:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-19 21:38:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-19 21:38:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:38:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-19 21:38:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-19 21:38:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-19 21:38:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-19 21:38:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:04,439 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-19 21:38:04,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:38:04,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099864810] [2024-11-19 21:38:04,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099864810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:38:04,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:38:04,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 21:38:04,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714881526] [2024-11-19 21:38:04,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:38:04,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 21:38:04,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:38:04,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 21:38:04,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 21:38:04,442 INFO L87 Difference]: Start difference. First operand 1404 states and 2304 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:38:07,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:38:07,923 INFO L93 Difference]: Finished difference Result 3190 states and 5267 transitions. [2024-11-19 21:38:07,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 21:38:07,923 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 154 [2024-11-19 21:38:07,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:38:07,931 INFO L225 Difference]: With dead ends: 3190 [2024-11-19 21:38:07,931 INFO L226 Difference]: Without dead ends: 1794 [2024-11-19 21:38:07,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:38:07,936 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 1519 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 2722 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 3155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 2722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-19 21:38:07,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 1391 Invalid, 3155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 2722 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-19 21:38:07,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2024-11-19 21:38:08,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1376. [2024-11-19 21:38:08,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1094 states have (on average 1.6425959780621573) internal successors, (1797), 1123 states have internal predecessors, (1797), 216 states have call successors, (216), 65 states have call predecessors, (216), 65 states have return successors, (241), 211 states have call predecessors, (241), 212 states have call successors, (241) [2024-11-19 21:38:08,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 2254 transitions. [2024-11-19 21:38:08,128 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 2254 transitions. Word has length 154 [2024-11-19 21:38:08,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:38:08,129 INFO L471 AbstractCegarLoop]: Abstraction has 1376 states and 2254 transitions. [2024-11-19 21:38:08,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:38:08,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 2254 transitions. [2024-11-19 21:38:08,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 21:38:08,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:38:08,131 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:38:08,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 21:38:08,132 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:38:08,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:38:08,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1433929445, now seen corresponding path program 1 times [2024-11-19 21:38:08,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:38:08,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359471700] [2024-11-19 21:38:08,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:08,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:38:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:38:08,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:38:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 21:38:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:38:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:38:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 21:38:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 21:38:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 21:38:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:38:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 21:38:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-19 21:38:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-19 21:38:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-19 21:38:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:08,800 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-19 21:38:08,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:38:08,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359471700] [2024-11-19 21:38:08,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359471700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:38:08,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137682229] [2024-11-19 21:38:08,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:08,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:38:08,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:38:08,804 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:38:08,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-19 21:38:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:09,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 21:38:09,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:38:09,295 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-19 21:38:09,296 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:38:09,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137682229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:38:09,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:38:09,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-19 21:38:09,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858309592] [2024-11-19 21:38:09,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:38:09,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:38:09,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:38:09,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:38:09,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:38:09,297 INFO L87 Difference]: Start difference. First operand 1376 states and 2254 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:38:09,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:38:09,892 INFO L93 Difference]: Finished difference Result 2684 states and 4446 transitions. [2024-11-19 21:38:09,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 21:38:09,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2024-11-19 21:38:09,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:38:09,899 INFO L225 Difference]: With dead ends: 2684 [2024-11-19 21:38:09,900 INFO L226 Difference]: Without dead ends: 1396 [2024-11-19 21:38:09,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-19 21:38:09,904 INFO L432 NwaCegarLoop]: 1146 mSDtfsCounter, 911 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 4166 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:38:09,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 4166 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 21:38:09,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2024-11-19 21:38:10,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 1386. [2024-11-19 21:38:10,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1100 states have (on average 1.6390909090909092) internal successors, (1803), 1132 states have internal predecessors, (1803), 218 states have call successors, (218), 66 states have call predecessors, (218), 67 states have return successors, (251), 211 states have call predecessors, (251), 214 states have call successors, (251) [2024-11-19 21:38:10,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 2272 transitions. [2024-11-19 21:38:10,129 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 2272 transitions. Word has length 155 [2024-11-19 21:38:10,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:38:10,129 INFO L471 AbstractCegarLoop]: Abstraction has 1386 states and 2272 transitions. [2024-11-19 21:38:10,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:38:10,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 2272 transitions. [2024-11-19 21:38:10,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 21:38:10,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:38:10,133 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:38:10,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-19 21:38:10,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-19 21:38:10,333 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:38:10,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:38:10,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1828335914, now seen corresponding path program 1 times [2024-11-19 21:38:10,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:38:10,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691156755] [2024-11-19 21:38:10,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:10,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:38:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:38:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:38:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 21:38:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:38:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:38:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 21:38:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 21:38:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 21:38:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:10,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:38:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 21:38:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 21:38:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-19 21:38:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-19 21:38:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-19 21:38:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:10,979 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-19 21:38:10,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:38:10,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691156755] [2024-11-19 21:38:10,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691156755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:38:10,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193586919] [2024-11-19 21:38:10,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:10,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:38:10,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:38:10,984 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:38:10,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-19 21:38:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:11,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 21:38:11,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:38:11,387 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-19 21:38:11,387 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:38:11,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193586919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:38:11,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:38:11,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2024-11-19 21:38:11,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464561358] [2024-11-19 21:38:11,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:38:11,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 21:38:11,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:38:11,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 21:38:11,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-19 21:38:11,389 INFO L87 Difference]: Start difference. First operand 1386 states and 2272 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:38:11,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:38:11,929 INFO L93 Difference]: Finished difference Result 3325 states and 5523 transitions. [2024-11-19 21:38:11,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:38:11,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 160 [2024-11-19 21:38:11,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:38:11,939 INFO L225 Difference]: With dead ends: 3325 [2024-11-19 21:38:11,939 INFO L226 Difference]: Without dead ends: 2028 [2024-11-19 21:38:11,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-11-19 21:38:11,942 INFO L432 NwaCegarLoop]: 1847 mSDtfsCounter, 935 mSDsluCounter, 5421 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 7268 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:38:11,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 7268 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 21:38:11,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2024-11-19 21:38:12,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2020. [2024-11-19 21:38:12,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2020 states, 1603 states have (on average 1.64504054897068) internal successors, (2637), 1647 states have internal predecessors, (2637), 320 states have call successors, (320), 95 states have call predecessors, (320), 96 states have return successors, (377), 313 states have call predecessors, (377), 315 states have call successors, (377) [2024-11-19 21:38:12,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 3334 transitions. [2024-11-19 21:38:12,193 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 3334 transitions. Word has length 160 [2024-11-19 21:38:12,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:38:12,193 INFO L471 AbstractCegarLoop]: Abstraction has 2020 states and 3334 transitions. [2024-11-19 21:38:12,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:38:12,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 3334 transitions. [2024-11-19 21:38:12,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 21:38:12,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:38:12,197 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:38:12,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-19 21:38:12,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-19 21:38:12,398 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:38:12,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:38:12,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1481189742, now seen corresponding path program 1 times [2024-11-19 21:38:12,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:38:12,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11517292] [2024-11-19 21:38:12,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:12,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:38:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:38:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:38:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 21:38:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:38:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:38:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 21:38:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 21:38:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 21:38:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:38:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 21:38:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 21:38:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-19 21:38:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-19 21:38:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-19 21:38:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:12,974 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-19 21:38:12,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:38:12,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11517292] [2024-11-19 21:38:12,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11517292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:38:12,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463822778] [2024-11-19 21:38:12,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:12,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:38:12,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:38:12,977 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:38:12,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-19 21:38:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:13,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 21:38:13,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:38:13,361 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-19 21:38:13,361 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:38:13,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463822778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:38:13,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:38:13,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-19 21:38:13,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369174931] [2024-11-19 21:38:13,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:38:13,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:38:13,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:38:13,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:38:13,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:38:13,363 INFO L87 Difference]: Start difference. First operand 2020 states and 3334 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:38:13,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:38:13,723 INFO L93 Difference]: Finished difference Result 3970 states and 6642 transitions. [2024-11-19 21:38:13,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:38:13,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 160 [2024-11-19 21:38:13,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:38:13,736 INFO L225 Difference]: With dead ends: 3970 [2024-11-19 21:38:13,737 INFO L226 Difference]: Without dead ends: 2038 [2024-11-19 21:38:13,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:38:13,745 INFO L432 NwaCegarLoop]: 991 mSDtfsCounter, 26 mSDsluCounter, 1948 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 2939 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:38:13,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 2939 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:38:13,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2038 states. [2024-11-19 21:38:14,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2038 to 2038. [2024-11-19 21:38:14,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2038 states, 1618 states have (on average 1.6409147095179233) internal successors, (2655), 1662 states have internal predecessors, (2655), 320 states have call successors, (320), 98 states have call predecessors, (320), 99 states have return successors, (377), 313 states have call predecessors, (377), 315 states have call successors, (377) [2024-11-19 21:38:14,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2038 states to 2038 states and 3352 transitions. [2024-11-19 21:38:14,136 INFO L78 Accepts]: Start accepts. Automaton has 2038 states and 3352 transitions. Word has length 160 [2024-11-19 21:38:14,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:38:14,137 INFO L471 AbstractCegarLoop]: Abstraction has 2038 states and 3352 transitions. [2024-11-19 21:38:14,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:38:14,138 INFO L276 IsEmpty]: Start isEmpty. Operand 2038 states and 3352 transitions. [2024-11-19 21:38:14,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-19 21:38:14,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:38:14,141 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:38:14,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-19 21:38:14,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-19 21:38:14,342 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:38:14,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:38:14,342 INFO L85 PathProgramCache]: Analyzing trace with hash -473045737, now seen corresponding path program 1 times [2024-11-19 21:38:14,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:38:14,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794603970] [2024-11-19 21:38:14,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:14,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:38:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:38:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:38:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 21:38:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:38:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:38:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 21:38:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 21:38:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 21:38:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:38:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 21:38:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 21:38:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-19 21:38:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-19 21:38:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-19 21:38:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:14,828 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-19 21:38:14,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:38:14,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794603970] [2024-11-19 21:38:14,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794603970] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:38:14,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369209004] [2024-11-19 21:38:14,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:14,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:38:14,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:38:14,832 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:38:14,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-19 21:38:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:15,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 21:38:15,136 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:38:15,305 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-19 21:38:15,305 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:38:15,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369209004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:38:15,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:38:15,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2024-11-19 21:38:15,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776479389] [2024-11-19 21:38:15,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:38:15,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:38:15,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:38:15,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:38:15,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-11-19 21:38:15,306 INFO L87 Difference]: Start difference. First operand 2038 states and 3352 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 21:38:19,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:38:19,213 INFO L93 Difference]: Finished difference Result 6926 states and 11633 transitions. [2024-11-19 21:38:19,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 21:38:19,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 162 [2024-11-19 21:38:19,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:38:19,238 INFO L225 Difference]: With dead ends: 6926 [2024-11-19 21:38:19,239 INFO L226 Difference]: Without dead ends: 4976 [2024-11-19 21:38:19,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-19 21:38:19,252 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 3416 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 5120 mSolverCounterSat, 832 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3535 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 5952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 832 IncrementalHoareTripleChecker+Valid, 5120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:38:19,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3535 Valid, 1440 Invalid, 5952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [832 Valid, 5120 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-19 21:38:19,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4976 states. [2024-11-19 21:38:19,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4976 to 4694. [2024-11-19 21:38:19,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4694 states, 3717 states have (on average 1.6338444982512779) internal successors, (6073), 3816 states have internal predecessors, (6073), 733 states have call successors, (733), 244 states have call predecessors, (733), 243 states have return successors, (951), 717 states have call predecessors, (951), 724 states have call successors, (951) [2024-11-19 21:38:19,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4694 states to 4694 states and 7757 transitions. [2024-11-19 21:38:19,861 INFO L78 Accepts]: Start accepts. Automaton has 4694 states and 7757 transitions. Word has length 162 [2024-11-19 21:38:19,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:38:19,862 INFO L471 AbstractCegarLoop]: Abstraction has 4694 states and 7757 transitions. [2024-11-19 21:38:19,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 21:38:19,862 INFO L276 IsEmpty]: Start isEmpty. Operand 4694 states and 7757 transitions. [2024-11-19 21:38:19,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-19 21:38:19,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:38:19,866 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:38:19,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-19 21:38:20,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-19 21:38:20,067 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:38:20,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:38:20,068 INFO L85 PathProgramCache]: Analyzing trace with hash 130090509, now seen corresponding path program 1 times [2024-11-19 21:38:20,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:38:20,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561067221] [2024-11-19 21:38:20,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:20,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:38:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:38:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:38:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 21:38:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:38:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:38:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 21:38:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 21:38:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 21:38:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:38:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 21:38:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 21:38:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-19 21:38:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-19 21:38:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-19 21:38:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,597 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-19 21:38:20,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:38:20,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561067221] [2024-11-19 21:38:20,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561067221] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:38:20,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583996033] [2024-11-19 21:38:20,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:20,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:38:20,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:38:20,600 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:38:20,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-19 21:38:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:20,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 21:38:20,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:38:21,135 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-19 21:38:21,135 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:38:21,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583996033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:38:21,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:38:21,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-11-19 21:38:21,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673814507] [2024-11-19 21:38:21,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:38:21,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 21:38:21,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:38:21,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 21:38:21,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-19 21:38:21,138 INFO L87 Difference]: Start difference. First operand 4694 states and 7757 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 21:38:22,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:38:22,521 INFO L93 Difference]: Finished difference Result 10576 states and 17643 transitions. [2024-11-19 21:38:22,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:38:22,522 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 163 [2024-11-19 21:38:22,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:38:22,560 INFO L225 Difference]: With dead ends: 10576 [2024-11-19 21:38:22,560 INFO L226 Difference]: Without dead ends: 5955 [2024-11-19 21:38:22,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-11-19 21:38:22,583 INFO L432 NwaCegarLoop]: 1332 mSDtfsCounter, 1739 mSDsluCounter, 4331 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 5663 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 21:38:22,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1741 Valid, 5663 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 21:38:22,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5955 states. [2024-11-19 21:38:23,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5955 to 5940. [2024-11-19 21:38:23,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 4788 states have (on average 1.623015873015873) internal successors, (7771), 4889 states have internal predecessors, (7771), 815 states have call successors, (815), 336 states have call predecessors, (815), 336 states have return successors, (1283), 798 states have call predecessors, (1283), 800 states have call successors, (1283) [2024-11-19 21:38:23,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 9869 transitions. [2024-11-19 21:38:23,504 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 9869 transitions. Word has length 163 [2024-11-19 21:38:23,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:38:23,504 INFO L471 AbstractCegarLoop]: Abstraction has 5940 states and 9869 transitions. [2024-11-19 21:38:23,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 21:38:23,504 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 9869 transitions. [2024-11-19 21:38:23,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-19 21:38:23,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:38:23,507 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:38:23,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-19 21:38:23,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:38:23,708 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:38:23,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:38:23,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1774491780, now seen corresponding path program 1 times [2024-11-19 21:38:23,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:38:23,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846656009] [2024-11-19 21:38:23,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:23,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:38:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:23,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:38:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:38:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 21:38:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:38:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:38:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 21:38:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 21:38:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 21:38:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:38:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 21:38:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 21:38:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-19 21:38:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-19 21:38:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-19 21:38:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,223 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-19 21:38:24,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:38:24,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846656009] [2024-11-19 21:38:24,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846656009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:38:24,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470916988] [2024-11-19 21:38:24,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:24,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:38:24,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:38:24,226 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:38:24,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-19 21:38:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:24,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 21:38:24,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:38:24,709 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-19 21:38:24,710 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:38:24,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470916988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:38:24,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:38:24,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2024-11-19 21:38:24,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026658352] [2024-11-19 21:38:24,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:38:24,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:38:24,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:38:24,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:38:24,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-11-19 21:38:24,711 INFO L87 Difference]: Start difference. First operand 5940 states and 9869 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 21:38:28,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:38:28,753 INFO L93 Difference]: Finished difference Result 11539 states and 19180 transitions. [2024-11-19 21:38:28,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 21:38:28,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 166 [2024-11-19 21:38:28,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:38:28,847 INFO L225 Difference]: With dead ends: 11539 [2024-11-19 21:38:28,847 INFO L226 Difference]: Without dead ends: 6417 [2024-11-19 21:38:28,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-19 21:38:28,873 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 3190 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 5184 mSolverCounterSat, 737 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3309 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 5921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 737 IncrementalHoareTripleChecker+Valid, 5184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:38:28,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3309 Valid, 1556 Invalid, 5921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [737 Valid, 5184 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-19 21:38:28,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6417 states. [2024-11-19 21:38:29,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6417 to 5936. [2024-11-19 21:38:29,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5936 states, 4784 states have (on average 1.6218645484949832) internal successors, (7759), 4885 states have internal predecessors, (7759), 815 states have call successors, (815), 336 states have call predecessors, (815), 336 states have return successors, (1283), 798 states have call predecessors, (1283), 800 states have call successors, (1283) [2024-11-19 21:38:29,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5936 states to 5936 states and 9857 transitions. [2024-11-19 21:38:29,883 INFO L78 Accepts]: Start accepts. Automaton has 5936 states and 9857 transitions. Word has length 166 [2024-11-19 21:38:29,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:38:29,883 INFO L471 AbstractCegarLoop]: Abstraction has 5936 states and 9857 transitions. [2024-11-19 21:38:29,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 21:38:29,884 INFO L276 IsEmpty]: Start isEmpty. Operand 5936 states and 9857 transitions. [2024-11-19 21:38:29,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-19 21:38:29,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:38:29,886 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:38:29,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-19 21:38:30,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:38:30,087 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:38:30,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:38:30,087 INFO L85 PathProgramCache]: Analyzing trace with hash -124507054, now seen corresponding path program 1 times [2024-11-19 21:38:30,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:38:30,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091366450] [2024-11-19 21:38:30,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:30,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:38:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:38:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:38:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 21:38:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:38:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:38:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 21:38:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 21:38:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 21:38:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:38:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 21:38:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 21:38:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-19 21:38:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-19 21:38:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-19 21:38:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,607 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-19 21:38:30,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:38:30,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091366450] [2024-11-19 21:38:30,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091366450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:38:30,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843516923] [2024-11-19 21:38:30,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:30,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:38:30,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:38:30,610 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:38:30,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-19 21:38:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:30,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 21:38:30,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:38:30,991 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-19 21:38:30,991 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:38:30,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843516923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:38:30,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:38:30,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-19 21:38:30,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504245489] [2024-11-19 21:38:30,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:38:30,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:38:30,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:38:30,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:38:30,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:38:30,994 INFO L87 Difference]: Start difference. First operand 5936 states and 9857 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:38:31,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:38:31,793 INFO L93 Difference]: Finished difference Result 11818 states and 20056 transitions. [2024-11-19 21:38:31,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:38:31,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 168 [2024-11-19 21:38:31,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:38:31,825 INFO L225 Difference]: With dead ends: 11818 [2024-11-19 21:38:31,826 INFO L226 Difference]: Without dead ends: 5923 [2024-11-19 21:38:31,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:38:31,853 INFO L432 NwaCegarLoop]: 990 mSDtfsCounter, 33 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 2933 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:38:31,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 2933 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:38:31,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5923 states. [2024-11-19 21:38:32,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5923 to 5923. [2024-11-19 21:38:32,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5923 states, 4771 states have (on average 1.6153846153846154) internal successors, (7707), 4872 states have internal predecessors, (7707), 815 states have call successors, (815), 336 states have call predecessors, (815), 336 states have return successors, (1283), 798 states have call predecessors, (1283), 800 states have call successors, (1283) [2024-11-19 21:38:32,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5923 states to 5923 states and 9805 transitions. [2024-11-19 21:38:32,755 INFO L78 Accepts]: Start accepts. Automaton has 5923 states and 9805 transitions. Word has length 168 [2024-11-19 21:38:32,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:38:32,756 INFO L471 AbstractCegarLoop]: Abstraction has 5923 states and 9805 transitions. [2024-11-19 21:38:32,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:38:32,756 INFO L276 IsEmpty]: Start isEmpty. Operand 5923 states and 9805 transitions. [2024-11-19 21:38:32,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-19 21:38:32,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:38:32,758 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:38:32,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-19 21:38:32,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-19 21:38:32,959 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:38:32,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:38:32,959 INFO L85 PathProgramCache]: Analyzing trace with hash 184659544, now seen corresponding path program 1 times [2024-11-19 21:38:32,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:38:32,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302676809] [2024-11-19 21:38:32,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:32,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:38:32,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:38:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:38:33,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 21:38:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:38:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:38:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 21:38:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 21:38:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 21:38:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:38:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 21:38:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 21:38:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-19 21:38:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-19 21:38:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-19 21:38:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,432 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-19 21:38:33,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:38:33,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302676809] [2024-11-19 21:38:33,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302676809] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:38:33,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914043939] [2024-11-19 21:38:33,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:33,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:38:33,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:38:33,436 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:38:33,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-19 21:38:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:33,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 21:38:33,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:38:33,979 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-19 21:38:33,979 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:38:33,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914043939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:38:33,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:38:33,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2024-11-19 21:38:33,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534395393] [2024-11-19 21:38:33,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:38:33,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:38:33,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:38:33,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:38:33,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-11-19 21:38:33,981 INFO L87 Difference]: Start difference. First operand 5923 states and 9805 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 4 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 21:38:38,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:38:38,743 INFO L93 Difference]: Finished difference Result 17828 states and 30818 transitions. [2024-11-19 21:38:38,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 21:38:38,744 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 4 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 169 [2024-11-19 21:38:38,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:38:38,801 INFO L225 Difference]: With dead ends: 17828 [2024-11-19 21:38:38,801 INFO L226 Difference]: Without dead ends: 11991 [2024-11-19 21:38:38,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2024-11-19 21:38:38,842 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 3529 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 3551 mSolverCounterSat, 904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3642 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 4455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 3551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-19 21:38:38,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3642 Valid, 1172 Invalid, 4455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [904 Valid, 3551 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-19 21:38:38,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11991 states. [2024-11-19 21:38:40,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11991 to 10521. [2024-11-19 21:38:40,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10521 states, 8451 states have (on average 1.587149449769258) internal successors, (13413), 8639 states have internal predecessors, (13413), 1449 states have call successors, (1449), 611 states have call predecessors, (1449), 620 states have return successors, (2259), 1426 states have call predecessors, (2259), 1430 states have call successors, (2259) [2024-11-19 21:38:40,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10521 states to 10521 states and 17121 transitions. [2024-11-19 21:38:40,416 INFO L78 Accepts]: Start accepts. Automaton has 10521 states and 17121 transitions. Word has length 169 [2024-11-19 21:38:40,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:38:40,416 INFO L471 AbstractCegarLoop]: Abstraction has 10521 states and 17121 transitions. [2024-11-19 21:38:40,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 4 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 21:38:40,417 INFO L276 IsEmpty]: Start isEmpty. Operand 10521 states and 17121 transitions. [2024-11-19 21:38:40,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-19 21:38:40,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:38:40,418 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:38:40,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-19 21:38:40,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:38:40,619 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:38:40,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:38:40,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1989304719, now seen corresponding path program 1 times [2024-11-19 21:38:40,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:38:40,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148845426] [2024-11-19 21:38:40,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:40,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:38:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:40,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:38:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:40,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:38:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:40,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 21:38:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:40,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:40,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:38:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:40,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:38:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:40,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 21:38:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:41,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:41,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 21:38:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:41,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 21:38:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:41,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:41,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:38:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:41,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:38:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:41,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 21:38:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:41,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 21:38:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:41,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-19 21:38:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:41,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-19 21:38:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:41,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-19 21:38:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:41,052 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-19 21:38:41,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:38:41,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148845426] [2024-11-19 21:38:41,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148845426] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:38:41,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826105659] [2024-11-19 21:38:41,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:38:41,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:38:41,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:38:41,056 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:38:41,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-19 21:38:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:38:41,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 21:38:41,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:38:41,636 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-19 21:38:41,637 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:38:41,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826105659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:38:41,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:38:41,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2024-11-19 21:38:41,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552644106] [2024-11-19 21:38:41,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:38:41,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:38:41,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:38:41,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:38:41,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-11-19 21:38:41,638 INFO L87 Difference]: Start difference. First operand 10521 states and 17121 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 4 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17)