./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_spec1_product31.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_spec1_product31.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 04ae9a4eaad9b026cab167b9d875c53fcb305c3c3f2af8aa4a0b048c8b5ef4cb --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 21:41:24,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 21:41:24,751 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 21:41:24,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 21:41:24,757 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 21:41:24,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 21:41:24,788 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 21:41:24,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 21:41:24,789 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 21:41:24,790 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 21:41:24,790 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 21:41:24,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 21:41:24,791 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 21:41:24,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 21:41:24,792 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 21:41:24,792 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 21:41:24,793 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 21:41:24,793 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 21:41:24,793 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 21:41:24,794 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 21:41:24,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 21:41:24,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 21:41:24,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 21:41:24,795 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 21:41:24,795 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 21:41:24,796 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 21:41:24,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 21:41:24,796 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 21:41:24,797 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 21:41:24,797 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 21:41:24,797 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 21:41:24,798 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 21:41:24,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 21:41:24,798 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 21:41:24,798 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 21:41:24,799 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 21:41:24,799 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 21:41:24,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 21:41:24,800 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 21:41:24,800 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 21:41:24,800 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 21:41:24,801 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 21:41:24,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04ae9a4eaad9b026cab167b9d875c53fcb305c3c3f2af8aa4a0b048c8b5ef4cb [2024-11-19 21:41:25,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 21:41:25,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 21:41:25,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 21:41:25,106 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 21:41:25,107 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 21:41:25,108 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product31.cil.c [2024-11-19 21:41:26,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 21:41:26,848 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 21:41:26,849 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product31.cil.c [2024-11-19 21:41:26,880 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d875d309a/0530bc7d710e4f34b4df8a2c361a3bd2/FLAG96c6dcdae [2024-11-19 21:41:27,118 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d875d309a/0530bc7d710e4f34b4df8a2c361a3bd2 [2024-11-19 21:41:27,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 21:41:27,121 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 21:41:27,122 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 21:41:27,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 21:41:27,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 21:41:27,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:41:27" (1/1) ... [2024-11-19 21:41:27,127 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a095904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:41:27, skipping insertion in model container [2024-11-19 21:41:27,128 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:41:27" (1/1) ... [2024-11-19 21:41:27,190 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 21:41:27,528 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_spec1_product31.cil.c[11232,11245] [2024-11-19 21:41:27,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 21:41:27,791 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 21:41:27,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-19 21:41:27,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [414] [2024-11-19 21:41:27,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [423] [2024-11-19 21:41:27,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2054] [2024-11-19 21:41:27,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2148] [2024-11-19 21:41:27,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2164] [2024-11-19 21:41:27,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [2282] [2024-11-19 21:41:27,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2463] [2024-11-19 21:41:27,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2816] [2024-11-19 21:41:27,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3481] [2024-11-19 21:41:27,832 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_spec1_product31.cil.c[11232,11245] [2024-11-19 21:41:27,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 21:41:27,970 INFO L204 MainTranslator]: Completed translation [2024-11-19 21:41:27,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:41:27 WrapperNode [2024-11-19 21:41:27,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 21:41:27,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 21:41:27,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 21:41:27,971 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 21:41:27,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:41:27" (1/1) ... [2024-11-19 21:41:28,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:41:27" (1/1) ... [2024-11-19 21:41:28,067 INFO L138 Inliner]: procedures = 97, calls = 350, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 954 [2024-11-19 21:41:28,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 21:41:28,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 21:41:28,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 21:41:28,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 21:41:28,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:41:27" (1/1) ... [2024-11-19 21:41:28,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:41:27" (1/1) ... [2024-11-19 21:41:28,086 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:41:27" (1/1) ... [2024-11-19 21:41:28,117 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 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 21:41:28,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:41:27" (1/1) ... [2024-11-19 21:41:28,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:41:27" (1/1) ... [2024-11-19 21:41:28,155 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:41:27" (1/1) ... [2024-11-19 21:41:28,175 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:41:27" (1/1) ... [2024-11-19 21:41:28,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:41:27" (1/1) ... [2024-11-19 21:41:28,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:41:27" (1/1) ... [2024-11-19 21:41:28,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 21:41:28,199 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 21:41:28,199 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 21:41:28,199 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 21:41:28,200 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:41:27" (1/1) ... [2024-11-19 21:41:28,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 21:41:28,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:28,257 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 21:41:28,264 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 21:41:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-19 21:41:28,308 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-19 21:41:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-19 21:41:28,308 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-19 21:41:28,309 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-19 21:41:28,309 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-19 21:41:28,309 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-11-19 21:41:28,309 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-11-19 21:41:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-19 21:41:28,310 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-19 21:41:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-19 21:41:28,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-19 21:41:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-19 21:41:28,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-19 21:41:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-19 21:41:28,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-19 21:41:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-19 21:41:28,312 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-19 21:41:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-19 21:41:28,312 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-19 21:41:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-19 21:41:28,312 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-19 21:41:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2024-11-19 21:41:28,312 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2024-11-19 21:41:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 21:41:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-19 21:41:28,313 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-19 21:41:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-19 21:41:28,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-19 21:41:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-19 21:41:28,313 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-19 21:41:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-19 21:41:28,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-19 21:41:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-19 21:41:28,313 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-19 21:41:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-19 21:41:28,313 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-19 21:41:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-19 21:41:28,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-19 21:41:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-19 21:41:28,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-19 21:41:28,314 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-19 21:41:28,314 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-19 21:41:28,314 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-19 21:41:28,314 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-19 21:41:28,314 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-19 21:41:28,316 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-19 21:41:28,317 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-19 21:41:28,317 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-19 21:41:28,317 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-19 21:41:28,317 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-19 21:41:28,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 21:41:28,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 21:41:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 21:41:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 21:41:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 21:41:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 21:41:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 21:41:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 21:41:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 21:41:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 21:41:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-19 21:41:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-19 21:41:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-19 21:41:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-19 21:41:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-19 21:41:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-19 21:41:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-19 21:41:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-19 21:41:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-19 21:41:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-19 21:41:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-19 21:41:28,320 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-19 21:41:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 21:41:28,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 21:41:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-19 21:41:28,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-19 21:41:28,534 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 21:41:28,537 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 21:41:29,842 INFO L? ?]: Removed 483 outVars from TransFormulas that were not future-live. [2024-11-19 21:41:29,842 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 21:41:29,880 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 21:41:29,880 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 21:41:29,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:41:29 BoogieIcfgContainer [2024-11-19 21:41:29,881 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 21:41:29,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 21:41:29,883 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 21:41:29,886 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 21:41:29,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:41:27" (1/3) ... [2024-11-19 21:41:29,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2d4026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:41:29, skipping insertion in model container [2024-11-19 21:41:29,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:41:27" (2/3) ... [2024-11-19 21:41:29,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2d4026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:41:29, skipping insertion in model container [2024-11-19 21:41:29,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:41:29" (3/3) ... [2024-11-19 21:41:29,889 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product31.cil.c [2024-11-19 21:41:29,912 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 21:41:29,912 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 21:41:30,000 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 21:41:30,008 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;@4904ee3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 21:41:30,008 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 21:41:30,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 603 states, 469 states have (on average 1.67590618336887) internal successors, (786), 490 states have internal predecessors, (786), 105 states have call successors, (105), 27 states have call predecessors, (105), 27 states have return successors, (105), 99 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-19 21:41:30,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 21:41:30,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:30,063 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-19 21:41:30,064 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:30,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:30,071 INFO L85 PathProgramCache]: Analyzing trace with hash 953168523, now seen corresponding path program 1 times [2024-11-19 21:41:30,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:30,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305095188] [2024-11-19 21:41:30,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:30,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:30,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:30,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:30,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:41:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:30,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:41:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:31,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:31,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:41:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:31,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-19 21:41:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:31,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:31,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:31,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:31,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:31,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:31,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:31,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:31,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:31,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:31,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:31,610 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-19 21:41:31,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:31,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305095188] [2024-11-19 21:41:31,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305095188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:31,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051246766] [2024-11-19 21:41:31,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:31,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:31,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:31,616 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 21:41:31,619 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 21:41:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:32,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 21:41:32,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:32,130 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-19 21:41:32,130 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:32,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051246766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:32,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:32,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2024-11-19 21:41:32,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137502429] [2024-11-19 21:41:32,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:32,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 21:41:32,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:32,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 21:41:32,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:41:32,181 INFO L87 Difference]: Start difference. First operand has 603 states, 469 states have (on average 1.67590618336887) internal successors, (786), 490 states have internal predecessors, (786), 105 states have call successors, (105), 27 states have call predecessors, (105), 27 states have return successors, (105), 99 states have call predecessors, (105), 105 states have call successors, (105) Second operand has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-19 21:41:32,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:32,277 INFO L93 Difference]: Finished difference Result 624 states and 1026 transitions. [2024-11-19 21:41:32,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 21:41:32,280 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 127 [2024-11-19 21:41:32,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:32,301 INFO L225 Difference]: With dead ends: 624 [2024-11-19 21:41:32,301 INFO L226 Difference]: Without dead ends: 595 [2024-11-19 21:41:32,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:41:32,308 INFO L432 NwaCegarLoop]: 987 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:32,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:41:32,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-11-19 21:41:32,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 595. [2024-11-19 21:41:32,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 463 states have (on average 1.673866090712743) internal successors, (775), 482 states have internal predecessors, (775), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 21:41:32,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 980 transitions. [2024-11-19 21:41:32,427 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 980 transitions. Word has length 127 [2024-11-19 21:41:32,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:32,429 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 980 transitions. [2024-11-19 21:41:32,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-19 21:41:32,430 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 980 transitions. [2024-11-19 21:41:32,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-19 21:41:32,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:32,438 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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 21:41:32,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 21:41:32,639 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 21:41:32,640 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:32,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:32,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1919451231, now seen corresponding path program 1 times [2024-11-19 21:41:32,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:32,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850831887] [2024-11-19 21:41:32,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:32,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:41:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:41:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:41:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-19 21:41:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,593 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-19 21:41:33,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:33,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850831887] [2024-11-19 21:41:33,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850831887] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:33,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063152071] [2024-11-19 21:41:33,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:33,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:33,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:33,597 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 21:41:33,599 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 21:41:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:33,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 1858 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:41:33,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:34,039 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 21:41:34,040 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:34,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063152071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:34,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:34,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-19 21:41:34,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487439072] [2024-11-19 21:41:34,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:34,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:41:34,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:34,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:41:34,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:41:34,043 INFO L87 Difference]: Start difference. First operand 595 states and 980 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:34,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:34,116 INFO L93 Difference]: Finished difference Result 1181 states and 1952 transitions. [2024-11-19 21:41:34,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 21:41:34,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 129 [2024-11-19 21:41:34,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:34,121 INFO L225 Difference]: With dead ends: 1181 [2024-11-19 21:41:34,122 INFO L226 Difference]: Without dead ends: 595 [2024-11-19 21:41:34,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:41:34,130 INFO L432 NwaCegarLoop]: 968 mSDtfsCounter, 5 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2898 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:34,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2898 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:41:34,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-11-19 21:41:34,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 595. [2024-11-19 21:41:34,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 463 states have (on average 1.6717062634989202) internal successors, (774), 482 states have internal predecessors, (774), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 21:41:34,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 979 transitions. [2024-11-19 21:41:34,161 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 979 transitions. Word has length 129 [2024-11-19 21:41:34,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:34,161 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 979 transitions. [2024-11-19 21:41:34,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:34,162 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 979 transitions. [2024-11-19 21:41:34,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 21:41:34,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:34,170 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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 21:41:34,181 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 21:41:34,374 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 21:41:34,375 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:34,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:34,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1051469961, now seen corresponding path program 1 times [2024-11-19 21:41:34,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:34,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590008684] [2024-11-19 21:41:34,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:34,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:34,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:34,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:34,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:34,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 21:41:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:34,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:34,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:35,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 21:41:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:35,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:35,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:35,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:35,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:35,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:35,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:35,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:35,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:35,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:35,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:35,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:35,282 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-19 21:41:35,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:35,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590008684] [2024-11-19 21:41:35,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590008684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:35,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125306420] [2024-11-19 21:41:35,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:35,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:35,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:35,287 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 21:41:35,290 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 21:41:35,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:35,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 1860 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:41:35,675 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:35,707 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 21:41:35,709 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:35,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125306420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:35,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:35,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-19 21:41:35,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524581569] [2024-11-19 21:41:35,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:35,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:41:35,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:35,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:41:35,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:41:35,715 INFO L87 Difference]: Start difference. First operand 595 states and 979 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:35,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:35,800 INFO L93 Difference]: Finished difference Result 1181 states and 1950 transitions. [2024-11-19 21:41:35,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 21:41:35,801 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, (17), 2 states have call predecessors, (17), 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 21:41:35,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:35,809 INFO L225 Difference]: With dead ends: 1181 [2024-11-19 21:41:35,810 INFO L226 Difference]: Without dead ends: 595 [2024-11-19 21:41:35,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:41:35,814 INFO L432 NwaCegarLoop]: 968 mSDtfsCounter, 4 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2898 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:35,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2898 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:41:35,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-11-19 21:41:35,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 595. [2024-11-19 21:41:35,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 463 states have (on average 1.6695464362850971) internal successors, (773), 482 states have internal predecessors, (773), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 21:41:35,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 978 transitions. [2024-11-19 21:41:35,858 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 978 transitions. Word has length 131 [2024-11-19 21:41:35,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:35,858 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 978 transitions. [2024-11-19 21:41:35,859 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:35,859 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 978 transitions. [2024-11-19 21:41:35,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 21:41:35,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:35,866 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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 21:41:35,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 21:41:36,066 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 21:41:36,067 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:36,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:36,067 INFO L85 PathProgramCache]: Analyzing trace with hash 957772319, now seen corresponding path program 1 times [2024-11-19 21:41:36,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:36,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206795336] [2024-11-19 21:41:36,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:36,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:41:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 21:41:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:41:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 21:41:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:36,864 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 21:41:36,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:36,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206795336] [2024-11-19 21:41:36,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206795336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:36,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715078357] [2024-11-19 21:41:36,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:36,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:36,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:36,868 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 21:41:36,869 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 21:41:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:37,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 1862 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:41:37,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:37,273 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 21:41:37,273 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:37,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715078357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:37,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:37,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-19 21:41:37,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332753768] [2024-11-19 21:41:37,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:37,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:41:37,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:37,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:41:37,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:41:37,276 INFO L87 Difference]: Start difference. First operand 595 states and 978 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:37,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:37,370 INFO L93 Difference]: Finished difference Result 1188 states and 1957 transitions. [2024-11-19 21:41:37,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:41:37,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2024-11-19 21:41:37,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:37,377 INFO L225 Difference]: With dead ends: 1188 [2024-11-19 21:41:37,377 INFO L226 Difference]: Without dead ends: 604 [2024-11-19 21:41:37,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:41:37,382 INFO L432 NwaCegarLoop]: 967 mSDtfsCounter, 13 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:37,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2895 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:41:37,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-19 21:41:37,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2024-11-19 21:41:37,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 471 states have (on average 1.6666666666666667) internal successors, (785), 490 states have internal predecessors, (785), 105 states have call successors, (105), 28 states have call predecessors, (105), 27 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 21:41:37,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 990 transitions. [2024-11-19 21:41:37,425 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 990 transitions. Word has length 133 [2024-11-19 21:41:37,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:37,425 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 990 transitions. [2024-11-19 21:41:37,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:37,426 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 990 transitions. [2024-11-19 21:41:37,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 21:41:37,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:37,431 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-19 21:41:37,442 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 21:41:37,631 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 21:41:37,632 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:37,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:37,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1893294337, now seen corresponding path program 1 times [2024-11-19 21:41:37,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:37,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165208522] [2024-11-19 21:41:37,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:37,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:37,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:37,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:37,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 21:41:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:37,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:41:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:37,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:37,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:41:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:38,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-19 21:41:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:38,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:38,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:38,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:38,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:38,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:38,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:38,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:38,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:38,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:38,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:38,360 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 21:41:38,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:38,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165208522] [2024-11-19 21:41:38,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165208522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:38,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557855584] [2024-11-19 21:41:38,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:38,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:38,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:38,364 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 21:41:38,367 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 21:41:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:38,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 1863 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:41:38,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:38,769 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 21:41:38,769 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:38,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557855584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:38,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:38,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-19 21:41:38,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82300830] [2024-11-19 21:41:38,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:38,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:41:38,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:38,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:41:38,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:41:38,776 INFO L87 Difference]: Start difference. First operand 604 states and 990 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:38,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:38,866 INFO L93 Difference]: Finished difference Result 1190 states and 1958 transitions. [2024-11-19 21:41:38,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:41:38,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 134 [2024-11-19 21:41:38,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:38,873 INFO L225 Difference]: With dead ends: 1190 [2024-11-19 21:41:38,873 INFO L226 Difference]: Without dead ends: 604 [2024-11-19 21:41:38,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:41:38,878 INFO L432 NwaCegarLoop]: 967 mSDtfsCounter, 11 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:38,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2895 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:41:38,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-19 21:41:38,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2024-11-19 21:41:38,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 471 states have (on average 1.664543524416136) internal successors, (784), 490 states have internal predecessors, (784), 105 states have call successors, (105), 28 states have call predecessors, (105), 27 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 21:41:38,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 989 transitions. [2024-11-19 21:41:38,913 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 989 transitions. Word has length 134 [2024-11-19 21:41:38,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:38,913 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 989 transitions. [2024-11-19 21:41:38,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:38,914 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 989 transitions. [2024-11-19 21:41:38,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 21:41:38,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:38,919 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-19 21:41:38,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 21:41:39,119 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 21:41:39,120 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:39,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:39,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1648575267, now seen corresponding path program 1 times [2024-11-19 21:41:39,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:39,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167682686] [2024-11-19 21:41:39,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:39,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 21:41:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-19 21:41:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:41:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-19 21:41:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:39,837 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 21:41:39,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:39,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167682686] [2024-11-19 21:41:39,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167682686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:39,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065998946] [2024-11-19 21:41:39,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:39,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:39,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:39,841 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 21:41:39,842 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 21:41:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:40,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 1864 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:41:40,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:40,251 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 21:41:40,251 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:40,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065998946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:40,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:40,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-19 21:41:40,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249007188] [2024-11-19 21:41:40,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:40,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:41:40,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:40,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:41:40,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:41:40,253 INFO L87 Difference]: Start difference. First operand 604 states and 989 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:40,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:40,323 INFO L93 Difference]: Finished difference Result 1190 states and 1957 transitions. [2024-11-19 21:41:40,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:41:40,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 135 [2024-11-19 21:41:40,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:40,328 INFO L225 Difference]: With dead ends: 1190 [2024-11-19 21:41:40,329 INFO L226 Difference]: Without dead ends: 604 [2024-11-19 21:41:40,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:41:40,332 INFO L432 NwaCegarLoop]: 967 mSDtfsCounter, 10 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:40,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2895 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:41:40,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-19 21:41:40,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2024-11-19 21:41:40,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 471 states have (on average 1.6624203821656052) internal successors, (783), 490 states have internal predecessors, (783), 105 states have call successors, (105), 28 states have call predecessors, (105), 27 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 21:41:40,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 988 transitions. [2024-11-19 21:41:40,356 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 988 transitions. Word has length 135 [2024-11-19 21:41:40,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:40,357 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 988 transitions. [2024-11-19 21:41:40,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:40,357 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 988 transitions. [2024-11-19 21:41:40,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-19 21:41:40,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:40,362 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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 21:41:40,373 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 21:41:40,562 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 21:41:40,563 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:40,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:40,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1508006019, now seen corresponding path program 1 times [2024-11-19 21:41:40,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:40,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031798719] [2024-11-19 21:41:40,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:40,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:40,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:40,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:41:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-19 21:41:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:41:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-19 21:41:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,447 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 21:41:41,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:41,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031798719] [2024-11-19 21:41:41,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031798719] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:41,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903736503] [2024-11-19 21:41:41,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:41,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:41,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:41,451 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 21:41:41,452 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 21:41:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:41,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 1865 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:41:41,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:41,899 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 21:41:41,899 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:41,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903736503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:41,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:41,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-19 21:41:41,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889113827] [2024-11-19 21:41:41,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:41,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:41:41,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:41,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:41:41,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:41:41,902 INFO L87 Difference]: Start difference. First operand 604 states and 988 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:42,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:42,043 INFO L93 Difference]: Finished difference Result 1216 states and 2004 transitions. [2024-11-19 21:41:42,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 21:41:42,044 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 136 [2024-11-19 21:41:42,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:42,049 INFO L225 Difference]: With dead ends: 1216 [2024-11-19 21:41:42,049 INFO L226 Difference]: Without dead ends: 619 [2024-11-19 21:41:42,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:41:42,053 INFO L432 NwaCegarLoop]: 942 mSDtfsCounter, 76 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2786 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:42,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2786 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:41:42,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-11-19 21:41:42,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 604. [2024-11-19 21:41:42,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 471 states have (on average 1.6518046709129512) internal successors, (778), 490 states have internal predecessors, (778), 105 states have call successors, (105), 28 states have call predecessors, (105), 27 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 21:41:42,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 983 transitions. [2024-11-19 21:41:42,079 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 983 transitions. Word has length 136 [2024-11-19 21:41:42,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:42,080 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 983 transitions. [2024-11-19 21:41:42,080 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:42,080 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 983 transitions. [2024-11-19 21:41:42,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-19 21:41:42,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:42,085 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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 21:41:42,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 21:41:42,285 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 21:41:42,286 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:42,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:42,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1186299491, now seen corresponding path program 1 times [2024-11-19 21:41:42,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:42,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791406268] [2024-11-19 21:41:42,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:42,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:42,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:42,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:42,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:41:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:42,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-19 21:41:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:42,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:42,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:41:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:43,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-19 21:41:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:43,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:43,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:43,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:43,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:43,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:43,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:43,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:43,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:43,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:43,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:43,190 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 21:41:43,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:43,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791406268] [2024-11-19 21:41:43,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791406268] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:43,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903737674] [2024-11-19 21:41:43,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:43,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:43,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:43,194 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 21:41:43,195 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 21:41:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:43,558 INFO L255 TraceCheckSpWp]: Trace formula consists of 1867 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:41:43,562 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:43,608 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 21:41:43,609 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:43,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903737674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:43,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:43,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-19 21:41:43,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751757338] [2024-11-19 21:41:43,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:43,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:41:43,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:43,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:41:43,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:41:43,610 INFO L87 Difference]: Start difference. First operand 604 states and 983 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:43,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:43,739 INFO L93 Difference]: Finished difference Result 1216 states and 1994 transitions. [2024-11-19 21:41:43,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 21:41:43,740 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 138 [2024-11-19 21:41:43,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:43,745 INFO L225 Difference]: With dead ends: 1216 [2024-11-19 21:41:43,745 INFO L226 Difference]: Without dead ends: 619 [2024-11-19 21:41:43,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:41:43,749 INFO L432 NwaCegarLoop]: 942 mSDtfsCounter, 75 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2786 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:43,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2786 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:41:43,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-11-19 21:41:43,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 604. [2024-11-19 21:41:43,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 471 states have (on average 1.6411889596602973) internal successors, (773), 490 states have internal predecessors, (773), 105 states have call successors, (105), 28 states have call predecessors, (105), 27 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 21:41:43,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 978 transitions. [2024-11-19 21:41:43,774 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 978 transitions. Word has length 138 [2024-11-19 21:41:43,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:43,774 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 978 transitions. [2024-11-19 21:41:43,774 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:43,774 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 978 transitions. [2024-11-19 21:41:43,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 21:41:43,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:43,778 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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 21:41:43,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 21:41:43,979 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 21:41:43,979 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:43,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:43,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1781935453, now seen corresponding path program 1 times [2024-11-19 21:41:43,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:43,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331594686] [2024-11-19 21:41:43,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:43,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:41:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 21:41:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:41:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:41:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:44,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:44,764 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 21:41:44,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:44,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331594686] [2024-11-19 21:41:44,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331594686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:44,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684250246] [2024-11-19 21:41:44,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:44,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:44,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:44,767 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 21:41:44,768 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 21:41:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:45,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 1869 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:41:45,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:45,135 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 21:41:45,137 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:45,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684250246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:45,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:45,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-19 21:41:45,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537902382] [2024-11-19 21:41:45,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:45,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:41:45,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:45,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:41:45,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-19 21:41:45,140 INFO L87 Difference]: Start difference. First operand 604 states and 978 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:45,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:45,340 INFO L93 Difference]: Finished difference Result 1267 states and 2067 transitions. [2024-11-19 21:41:45,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:41:45,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 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 21:41:45,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:45,348 INFO L225 Difference]: With dead ends: 1267 [2024-11-19 21:41:45,348 INFO L226 Difference]: Without dead ends: 685 [2024-11-19 21:41:45,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-19 21:41:45,353 INFO L432 NwaCegarLoop]: 975 mSDtfsCounter, 130 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2817 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:45,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2817 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:41:45,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2024-11-19 21:41:45,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 655. [2024-11-19 21:41:45,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 521 states have (on average 1.6468330134357005) internal successors, (858), 540 states have internal predecessors, (858), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 21:41:45,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 1063 transitions. [2024-11-19 21:41:45,376 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 1063 transitions. Word has length 140 [2024-11-19 21:41:45,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:45,377 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 1063 transitions. [2024-11-19 21:41:45,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:45,377 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 1063 transitions. [2024-11-19 21:41:45,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-19 21:41:45,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:45,381 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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 21:41:45,392 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 21:41:45,582 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 21:41:45,582 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:45,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:45,583 INFO L85 PathProgramCache]: Analyzing trace with hash -704308656, now seen corresponding path program 1 times [2024-11-19 21:41:45,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:45,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439456619] [2024-11-19 21:41:45,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:45,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:45,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:45,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:45,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:41:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:45,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:41:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:45,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:45,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:41:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:46,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-19 21:41:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:46,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:46,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:46,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:46,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:46,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:46,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:46,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:46,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:46,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:46,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:46,318 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 21:41:46,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:46,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439456619] [2024-11-19 21:41:46,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439456619] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:46,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639505469] [2024-11-19 21:41:46,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:46,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:46,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:46,321 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 21:41:46,323 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 21:41:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:46,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 1870 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:41:46,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:46,715 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 21:41:46,715 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:46,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639505469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:46,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:46,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-19 21:41:46,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324666204] [2024-11-19 21:41:46,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:46,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:41:46,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:46,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:41:46,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-19 21:41:46,719 INFO L87 Difference]: Start difference. First operand 655 states and 1063 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:46,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:46,896 INFO L93 Difference]: Finished difference Result 1282 states and 2091 transitions. [2024-11-19 21:41:46,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:41:46,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 141 [2024-11-19 21:41:46,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:46,902 INFO L225 Difference]: With dead ends: 1282 [2024-11-19 21:41:46,902 INFO L226 Difference]: Without dead ends: 685 [2024-11-19 21:41:46,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-19 21:41:46,906 INFO L432 NwaCegarLoop]: 974 mSDtfsCounter, 124 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:46,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 2790 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:41:46,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2024-11-19 21:41:46,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 655. [2024-11-19 21:41:46,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 521 states have (on average 1.637236084452975) internal successors, (853), 540 states have internal predecessors, (853), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 21:41:46,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 1058 transitions. [2024-11-19 21:41:46,928 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 1058 transitions. Word has length 141 [2024-11-19 21:41:46,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:46,928 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 1058 transitions. [2024-11-19 21:41:46,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:46,928 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 1058 transitions. [2024-11-19 21:41:46,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-19 21:41:46,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:46,932 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-19 21:41:46,945 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 21:41:47,133 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 21:41:47,133 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:47,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:47,134 INFO L85 PathProgramCache]: Analyzing trace with hash 421752975, now seen corresponding path program 1 times [2024-11-19 21:41:47,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:47,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247044078] [2024-11-19 21:41:47,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:47,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:41:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:41:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:41:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-19 21:41:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 21:41:47,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:47,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247044078] [2024-11-19 21:41:47,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247044078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:47,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724028431] [2024-11-19 21:41:47,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:47,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:47,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:48,001 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 21:41:48,002 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 21:41:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:48,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 1866 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 21:41:48,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:48,416 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 21:41:48,417 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:48,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724028431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:48,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:48,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 21 [2024-11-19 21:41:48,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996008118] [2024-11-19 21:41:48,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:48,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 21:41:48,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:48,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 21:41:48,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2024-11-19 21:41:48,419 INFO L87 Difference]: Start difference. First operand 655 states and 1058 transitions. Second operand has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:41:48,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:48,603 INFO L93 Difference]: Finished difference Result 1275 states and 2071 transitions. [2024-11-19 21:41:48,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 21:41:48,604 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 141 [2024-11-19 21:41:48,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:48,609 INFO L225 Difference]: With dead ends: 1275 [2024-11-19 21:41:48,610 INFO L226 Difference]: Without dead ends: 693 [2024-11-19 21:41:48,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2024-11-19 21:41:48,614 INFO L432 NwaCegarLoop]: 948 mSDtfsCounter, 113 mSDsluCounter, 5599 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6547 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:48,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6547 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:41:48,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-19 21:41:48,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 674. [2024-11-19 21:41:48,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 537 states have (on average 1.6368715083798884) internal successors, (879), 558 states have internal predecessors, (879), 106 states have call successors, (106), 29 states have call predecessors, (106), 30 states have return successors, (103), 99 states have call predecessors, (103), 101 states have call successors, (103) [2024-11-19 21:41:48,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 1088 transitions. [2024-11-19 21:41:48,636 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 1088 transitions. Word has length 141 [2024-11-19 21:41:48,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:48,636 INFO L471 AbstractCegarLoop]: Abstraction has 674 states and 1088 transitions. [2024-11-19 21:41:48,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:41:48,637 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 1088 transitions. [2024-11-19 21:41:48,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-19 21:41:48,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:48,641 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-19 21:41:48,653 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 21:41:48,841 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 21:41:48,841 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:48,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:48,842 INFO L85 PathProgramCache]: Analyzing trace with hash 895271918, now seen corresponding path program 1 times [2024-11-19 21:41:48,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:48,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683412344] [2024-11-19 21:41:48,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:48,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:41:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:41:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:41:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-19 21:41:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,435 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 21:41:49,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:49,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683412344] [2024-11-19 21:41:49,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683412344] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:49,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188002975] [2024-11-19 21:41:49,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:49,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:49,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:49,438 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 21:41:49,439 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 21:41:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:49,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 1865 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 21:41:49,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:49,856 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 21:41:49,857 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:49,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188002975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:49,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:49,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-19 21:41:49,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29691237] [2024-11-19 21:41:49,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:49,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:41:49,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:49,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:41:49,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-19 21:41:49,858 INFO L87 Difference]: Start difference. First operand 674 states and 1088 transitions. Second operand has 7 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:41:49,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:49,947 INFO L93 Difference]: Finished difference Result 1213 states and 1971 transitions. [2024-11-19 21:41:49,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 21:41:49,948 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (17), 2 states have call predecessors, (17), 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 21:41:49,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:49,954 INFO L225 Difference]: With dead ends: 1213 [2024-11-19 21:41:49,954 INFO L226 Difference]: Without dead ends: 698 [2024-11-19 21:41:49,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:41:49,957 INFO L432 NwaCegarLoop]: 961 mSDtfsCounter, 86 mSDsluCounter, 4726 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 5687 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:49,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 5687 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:41:49,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-19 21:41:49,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 693. [2024-11-19 21:41:49,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 553 states have (on average 1.6365280289330921) internal successors, (905), 576 states have internal predecessors, (905), 107 states have call successors, (107), 29 states have call predecessors, (107), 32 states have return successors, (106), 100 states have call predecessors, (106), 102 states have call successors, (106) [2024-11-19 21:41:49,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1118 transitions. [2024-11-19 21:41:49,981 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1118 transitions. Word has length 141 [2024-11-19 21:41:49,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:49,981 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1118 transitions. [2024-11-19 21:41:49,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:41:49,982 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1118 transitions. [2024-11-19 21:41:49,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 21:41:49,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:49,986 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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 21:41:49,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-19 21:41:50,186 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 21:41:50,186 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:50,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:50,187 INFO L85 PathProgramCache]: Analyzing trace with hash 368163626, now seen corresponding path program 1 times [2024-11-19 21:41:50,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:50,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312689454] [2024-11-19 21:41:50,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:50,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:41:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:41:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:41:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-19 21:41:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:50,823 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 21:41:50,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:50,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312689454] [2024-11-19 21:41:50,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312689454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:50,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911218964] [2024-11-19 21:41:50,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:50,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:50,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:50,826 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 21:41:50,827 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 21:41:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:51,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 1866 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 21:41:51,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:51,223 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 21:41:51,223 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:51,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911218964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:51,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:51,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-19 21:41:51,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164140487] [2024-11-19 21:41:51,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:51,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:41:51,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:51,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:41:51,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:41:51,225 INFO L87 Difference]: Start difference. First operand 693 states and 1118 transitions. Second operand has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:41:51,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:51,309 INFO L93 Difference]: Finished difference Result 1243 states and 2022 transitions. [2024-11-19 21:41:51,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 21:41:51,310 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 3 states have call successors, (17), 2 states have call predecessors, (17), 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 21:41:51,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:51,316 INFO L225 Difference]: With dead ends: 1243 [2024-11-19 21:41:51,316 INFO L226 Difference]: Without dead ends: 728 [2024-11-19 21:41:51,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:41:51,319 INFO L432 NwaCegarLoop]: 961 mSDtfsCounter, 95 mSDsluCounter, 4716 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 5677 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:51,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 5677 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:41:51,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-11-19 21:41:51,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 693. [2024-11-19 21:41:51,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 553 states have (on average 1.6365280289330921) internal successors, (905), 576 states have internal predecessors, (905), 107 states have call successors, (107), 29 states have call predecessors, (107), 32 states have return successors, (106), 100 states have call predecessors, (106), 102 states have call successors, (106) [2024-11-19 21:41:51,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1118 transitions. [2024-11-19 21:41:51,341 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1118 transitions. Word has length 142 [2024-11-19 21:41:51,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:51,341 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1118 transitions. [2024-11-19 21:41:51,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:41:51,341 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1118 transitions. [2024-11-19 21:41:51,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 21:41:51,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:51,345 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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 21:41:51,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-19 21:41:51,545 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 21:41:51,546 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:51,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:51,546 INFO L85 PathProgramCache]: Analyzing trace with hash -892323926, now seen corresponding path program 1 times [2024-11-19 21:41:51,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:51,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700000067] [2024-11-19 21:41:51,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:51,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:51,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:51,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:51,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:41:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:51,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:41:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:51,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:51,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:41:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:52,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-19 21:41:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:52,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:52,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:52,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:52,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:52,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:52,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:52,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:52,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:52,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:52,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:52,125 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 21:41:52,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:52,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700000067] [2024-11-19 21:41:52,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700000067] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:52,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205585172] [2024-11-19 21:41:52,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:52,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:52,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:52,128 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 21:41:52,130 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 21:41:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:52,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 1862 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 21:41:52,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:52,701 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 21:41:52,702 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:52,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205585172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:52,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:52,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-19 21:41:52,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297238116] [2024-11-19 21:41:52,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:52,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 21:41:52,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:52,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 21:41:52,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-11-19 21:41:52,703 INFO L87 Difference]: Start difference. First operand 693 states and 1118 transitions. Second operand has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:41:52,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:52,860 INFO L93 Difference]: Finished difference Result 1228 states and 1996 transitions. [2024-11-19 21:41:52,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 21:41:52,861 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (17), 2 states have call predecessors, (17), 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 21:41:52,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:52,866 INFO L225 Difference]: With dead ends: 1228 [2024-11-19 21:41:52,866 INFO L226 Difference]: Without dead ends: 713 [2024-11-19 21:41:52,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-11-19 21:41:52,870 INFO L432 NwaCegarLoop]: 950 mSDtfsCounter, 113 mSDsluCounter, 5605 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6555 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:52,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6555 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:41:52,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-19 21:41:52,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 693. [2024-11-19 21:41:52,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 553 states have (on average 1.6365280289330921) internal successors, (905), 576 states have internal predecessors, (905), 107 states have call successors, (107), 29 states have call predecessors, (107), 32 states have return successors, (106), 100 states have call predecessors, (106), 102 states have call successors, (106) [2024-11-19 21:41:52,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1118 transitions. [2024-11-19 21:41:52,892 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1118 transitions. Word has length 142 [2024-11-19 21:41:52,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:52,892 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1118 transitions. [2024-11-19 21:41:52,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:41:52,892 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1118 transitions. [2024-11-19 21:41:52,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 21:41:52,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:52,896 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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 21:41:52,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-19 21:41:53,097 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 21:41:53,098 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:53,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:53,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1810876124, now seen corresponding path program 1 times [2024-11-19 21:41:53,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:53,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473591421] [2024-11-19 21:41:53,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:53,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:41:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:41:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 21:41:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-19 21:41:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:53,696 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-19 21:41:53,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:53,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473591421] [2024-11-19 21:41:53,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473591421] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:53,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959117508] [2024-11-19 21:41:53,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:53,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:53,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:53,698 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 21:41:53,701 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 21:41:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 1866 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:41:54,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:54,076 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-19 21:41:54,076 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:54,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959117508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:54,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:54,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-19 21:41:54,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415935379] [2024-11-19 21:41:54,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:54,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:41:54,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:54,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:41:54,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:41:54,078 INFO L87 Difference]: Start difference. First operand 693 states and 1118 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:54,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:54,137 INFO L93 Difference]: Finished difference Result 1280 states and 2081 transitions. [2024-11-19 21:41:54,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:41:54,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (17), 2 states have call predecessors, (17), 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 21:41:54,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:54,144 INFO L225 Difference]: With dead ends: 1280 [2024-11-19 21:41:54,144 INFO L226 Difference]: Without dead ends: 693 [2024-11-19 21:41:54,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:41:54,149 INFO L432 NwaCegarLoop]: 956 mSDtfsCounter, 13 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:54,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2864 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:41:54,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-19 21:41:54,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2024-11-19 21:41:54,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 553 states have (on average 1.6292947558770343) internal successors, (901), 576 states have internal predecessors, (901), 107 states have call successors, (107), 29 states have call predecessors, (107), 32 states have return successors, (106), 100 states have call predecessors, (106), 102 states have call successors, (106) [2024-11-19 21:41:54,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1114 transitions. [2024-11-19 21:41:54,173 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1114 transitions. Word has length 142 [2024-11-19 21:41:54,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:54,174 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1114 transitions. [2024-11-19 21:41:54,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:54,174 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1114 transitions. [2024-11-19 21:41:54,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-19 21:41:54,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:54,179 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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 21:41:54,191 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 21:41:54,379 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 21:41:54,379 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:54,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:54,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1259334010, now seen corresponding path program 1 times [2024-11-19 21:41:54,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:54,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453476002] [2024-11-19 21:41:54,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:54,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:41:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:41:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:41:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 21:41:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:54,985 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 21:41:54,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:54,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453476002] [2024-11-19 21:41:54,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453476002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:54,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32824201] [2024-11-19 21:41:54,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:54,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:54,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:54,990 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 21:41:54,992 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 21:41:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:55,337 INFO L255 TraceCheckSpWp]: Trace formula consists of 1863 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 21:41:55,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:55,434 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 21:41:55,434 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:55,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32824201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:55,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:55,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-19 21:41:55,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801137468] [2024-11-19 21:41:55,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:55,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 21:41:55,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:55,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 21:41:55,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:41:55,436 INFO L87 Difference]: Start difference. First operand 693 states and 1114 transitions. Second operand has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:41:55,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:55,578 INFO L93 Difference]: Finished difference Result 1228 states and 1993 transitions. [2024-11-19 21:41:55,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 21:41:55,579 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 3 states have call successors, (17), 2 states have call predecessors, (17), 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 21:41:55,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:55,586 INFO L225 Difference]: With dead ends: 1228 [2024-11-19 21:41:55,586 INFO L226 Difference]: Without dead ends: 713 [2024-11-19 21:41:55,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-19 21:41:55,589 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 121 mSDsluCounter, 5567 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 6511 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:55,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 6511 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:41:55,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-19 21:41:55,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 693. [2024-11-19 21:41:55,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 553 states have (on average 1.6292947558770343) internal successors, (901), 576 states have internal predecessors, (901), 107 states have call successors, (107), 29 states have call predecessors, (107), 32 states have return successors, (106), 100 states have call predecessors, (106), 102 states have call successors, (106) [2024-11-19 21:41:55,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1114 transitions. [2024-11-19 21:41:55,613 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1114 transitions. Word has length 143 [2024-11-19 21:41:55,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:55,614 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1114 transitions. [2024-11-19 21:41:55,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-19 21:41:55,614 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1114 transitions. [2024-11-19 21:41:55,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 21:41:55,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:55,618 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-19 21:41:55,629 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 21:41:55,818 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 21:41:55,819 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:55,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:55,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1502988625, now seen corresponding path program 1 times [2024-11-19 21:41:55,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:55,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532635534] [2024-11-19 21:41:55,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:55,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:41:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:41:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:41:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 21:41:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:56,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,609 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-19 21:41:56,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:56,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532635534] [2024-11-19 21:41:56,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532635534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:56,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748785378] [2024-11-19 21:41:56,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:56,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:56,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:56,613 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 21:41:56,615 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 21:41:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:56,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 1864 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 21:41:56,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:57,003 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-19 21:41:57,003 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:57,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748785378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:57,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:57,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2024-11-19 21:41:57,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976303211] [2024-11-19 21:41:57,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:57,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:41:57,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:57,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:41:57,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:41:57,006 INFO L87 Difference]: Start difference. First operand 693 states and 1114 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:57,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:57,072 INFO L93 Difference]: Finished difference Result 1324 states and 2149 transitions. [2024-11-19 21:41:57,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 21:41:57,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2024-11-19 21:41:57,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:57,078 INFO L225 Difference]: With dead ends: 1324 [2024-11-19 21:41:57,079 INFO L226 Difference]: Without dead ends: 717 [2024-11-19 21:41:57,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:41:57,082 INFO L432 NwaCegarLoop]: 950 mSDtfsCounter, 6 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2837 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:57,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2837 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:41:57,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2024-11-19 21:41:57,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2024-11-19 21:41:57,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 577 states have (on average 1.610051993067591) internal successors, (929), 600 states have internal predecessors, (929), 107 states have call successors, (107), 29 states have call predecessors, (107), 32 states have return successors, (106), 100 states have call predecessors, (106), 102 states have call successors, (106) [2024-11-19 21:41:57,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1142 transitions. [2024-11-19 21:41:57,105 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1142 transitions. Word has length 144 [2024-11-19 21:41:57,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:57,105 INFO L471 AbstractCegarLoop]: Abstraction has 717 states and 1142 transitions. [2024-11-19 21:41:57,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:41:57,106 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1142 transitions. [2024-11-19 21:41:57,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 21:41:57,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:57,111 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-19 21:41:57,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-19 21:41:57,311 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 21:41:57,312 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:57,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:57,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1630383415, now seen corresponding path program 1 times [2024-11-19 21:41:57,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:57,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57741595] [2024-11-19 21:41:57,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:57,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:41:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:41:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:41:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 21:41:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:41:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:41:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:41:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:41:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:57,861 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 21:41:57,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:57,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57741595] [2024-11-19 21:41:57,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57741595] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:57,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902050779] [2024-11-19 21:41:57,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:57,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:57,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:57,865 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 21:41:57,866 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 21:41:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:58,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 1867 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 21:41:58,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:41:58,330 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 21:41:58,331 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:41:58,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902050779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:41:58,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:41:58,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-19 21:41:58,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800779899] [2024-11-19 21:41:58,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:41:58,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:41:58,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:41:58,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:41:58,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:41:58,333 INFO L87 Difference]: Start difference. First operand 717 states and 1142 transitions. Second operand has 5 states, 5 states have (on average 17.6) 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, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:41:58,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:41:58,886 INFO L93 Difference]: Finished difference Result 1235 states and 2018 transitions. [2024-11-19 21:41:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:41:58,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) 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, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2024-11-19 21:41:58,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:41:58,893 INFO L225 Difference]: With dead ends: 1235 [2024-11-19 21:41:58,893 INFO L226 Difference]: Without dead ends: 725 [2024-11-19 21:41:58,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-19 21:41:58,897 INFO L432 NwaCegarLoop]: 948 mSDtfsCounter, 914 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 2440 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 21:41:58,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 2440 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 21:41:58,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-19 21:41:58,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 725. [2024-11-19 21:41:58,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 584 states have (on average 1.6113013698630136) internal successors, (941), 607 states have internal predecessors, (941), 107 states have call successors, (107), 30 states have call predecessors, (107), 33 states have return successors, (107), 100 states have call predecessors, (107), 102 states have call successors, (107) [2024-11-19 21:41:58,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 1155 transitions. [2024-11-19 21:41:58,923 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 1155 transitions. Word has length 144 [2024-11-19 21:41:58,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:41:58,923 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 1155 transitions. [2024-11-19 21:41:58,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) 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, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:41:58,924 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 1155 transitions. [2024-11-19 21:41:58,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 21:41:58,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:41:58,927 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-19 21:41:58,942 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 21:41:59,128 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 21:41:59,128 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:41:59,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:41:59,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1461284635, now seen corresponding path program 1 times [2024-11-19 21:41:59,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:41:59,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153666775] [2024-11-19 21:41:59,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:59,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:41:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:41:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:41:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:41:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:41:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 21:41:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:41:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 21:41:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:41:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:41:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-19 21:41:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-19 21:41:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:41:59,640 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-19 21:41:59,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:41:59,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153666775] [2024-11-19 21:41:59,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153666775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:41:59,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712761251] [2024-11-19 21:41:59,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:41:59,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:41:59,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:41:59,642 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 21:41:59,643 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 21:42:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:00,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 1869 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 21:42:00,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:42:00,135 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 21:42:00,135 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:42:00,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712761251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:00,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:42:00,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-19 21:42:00,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632837950] [2024-11-19 21:42:00,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:00,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:42:00,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:00,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:42:00,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:42:00,138 INFO L87 Difference]: Start difference. First operand 725 states and 1155 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:42:00,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:00,589 INFO L93 Difference]: Finished difference Result 1251 states and 2041 transitions. [2024-11-19 21:42:00,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:42:00,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 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 21:42:00,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:00,596 INFO L225 Difference]: With dead ends: 1251 [2024-11-19 21:42:00,596 INFO L226 Difference]: Without dead ends: 733 [2024-11-19 21:42:00,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-19 21:42:00,600 INFO L432 NwaCegarLoop]: 945 mSDtfsCounter, 902 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 2437 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:00,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 2437 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 21:42:00,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-11-19 21:42:00,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2024-11-19 21:42:00,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 591 states have (on average 1.6125211505922166) internal successors, (953), 614 states have internal predecessors, (953), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (108), 100 states have call predecessors, (108), 102 states have call successors, (108) [2024-11-19 21:42:00,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1168 transitions. [2024-11-19 21:42:00,622 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1168 transitions. Word has length 146 [2024-11-19 21:42:00,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:00,623 INFO L471 AbstractCegarLoop]: Abstraction has 733 states and 1168 transitions. [2024-11-19 21:42:00,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:42:00,623 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1168 transitions. [2024-11-19 21:42:00,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 21:42:00,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:00,626 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-19 21:42:00,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-19 21:42:00,827 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 21:42:00,827 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:00,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:00,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1714915145, now seen corresponding path program 1 times [2024-11-19 21:42:00,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:00,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735477213] [2024-11-19 21:42:00,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:00,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:00,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:42:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 21:42:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:01,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 21:42:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 21:42:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 21:42:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-19 21:42:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-19 21:42:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,383 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-19 21:42:01,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:01,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735477213] [2024-11-19 21:42:01,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735477213] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:42:01,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850802372] [2024-11-19 21:42:01,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:01,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:42:01,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:42:01,387 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 21:42:01,387 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 21:42:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:01,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 1871 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 21:42:01,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:42:01,907 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 21:42:01,910 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:42:01,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850802372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:01,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:42:01,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2024-11-19 21:42:01,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645806163] [2024-11-19 21:42:01,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:01,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:42:01,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:01,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:42:01,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:42:01,913 INFO L87 Difference]: Start difference. First operand 733 states and 1168 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:42:02,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:02,421 INFO L93 Difference]: Finished difference Result 1267 states and 2064 transitions. [2024-11-19 21:42:02,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:42:02,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 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 21:42:02,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:02,428 INFO L225 Difference]: With dead ends: 1267 [2024-11-19 21:42:02,428 INFO L226 Difference]: Without dead ends: 741 [2024-11-19 21:42:02,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:42:02,432 INFO L432 NwaCegarLoop]: 942 mSDtfsCounter, 893 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:02,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 2434 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 21:42:02,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-11-19 21:42:02,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 741. [2024-11-19 21:42:02,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 598 states have (on average 1.6137123745819397) internal successors, (965), 621 states have internal predecessors, (965), 107 states have call successors, (107), 32 states have call predecessors, (107), 35 states have return successors, (109), 100 states have call predecessors, (109), 102 states have call successors, (109) [2024-11-19 21:42:02,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1181 transitions. [2024-11-19 21:42:02,459 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1181 transitions. Word has length 148 [2024-11-19 21:42:02,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:02,459 INFO L471 AbstractCegarLoop]: Abstraction has 741 states and 1181 transitions. [2024-11-19 21:42:02,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:42:02,460 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1181 transitions. [2024-11-19 21:42:02,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 21:42:02,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:02,464 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-19 21:42:02,476 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 21:42:02,664 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 21:42:02,665 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:02,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:02,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1473095955, now seen corresponding path program 1 times [2024-11-19 21:42:02,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:02,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311216164] [2024-11-19 21:42:02,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:02,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:02,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:02,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:02,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:02,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:42:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:02,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:02,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:03,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 21:42:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:03,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:03,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:03,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:03,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-19 21:42:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:03,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:42:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:03,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:03,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:03,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-19 21:42:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:03,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:42:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:03,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-19 21:42:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:03,263 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 21:42:03,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:03,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311216164] [2024-11-19 21:42:03,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311216164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:42:03,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028070975] [2024-11-19 21:42:03,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:03,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:42:03,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:42:03,267 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 21:42:03,268 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 21:42:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:03,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 1873 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 21:42:03,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:42:03,808 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 21:42:03,809 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:42:03,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028070975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:03,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:42:03,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2024-11-19 21:42:03,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2889431] [2024-11-19 21:42:03,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:03,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:42:03,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:03,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:42:03,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:42:03,810 INFO L87 Difference]: Start difference. First operand 741 states and 1181 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:42:04,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:04,267 INFO L93 Difference]: Finished difference Result 1283 states and 2087 transitions. [2024-11-19 21:42:04,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:42:04,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 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 21:42:04,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:04,273 INFO L225 Difference]: With dead ends: 1283 [2024-11-19 21:42:04,273 INFO L226 Difference]: Without dead ends: 749 [2024-11-19 21:42:04,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:42:04,277 INFO L432 NwaCegarLoop]: 939 mSDtfsCounter, 884 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 2431 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:04,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 2431 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 21:42:04,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-11-19 21:42:04,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2024-11-19 21:42:04,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 605 states have (on average 1.6148760330578513) internal successors, (977), 628 states have internal predecessors, (977), 107 states have call successors, (107), 33 states have call predecessors, (107), 36 states have return successors, (110), 100 states have call predecessors, (110), 102 states have call successors, (110) [2024-11-19 21:42:04,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1194 transitions. [2024-11-19 21:42:04,301 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1194 transitions. Word has length 150 [2024-11-19 21:42:04,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:04,302 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 1194 transitions. [2024-11-19 21:42:04,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:42:04,302 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1194 transitions. [2024-11-19 21:42:04,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 21:42:04,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:04,306 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-19 21:42:04,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-19 21:42:04,506 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 21:42:04,507 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:04,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:04,508 INFO L85 PathProgramCache]: Analyzing trace with hash 571638327, now seen corresponding path program 1 times [2024-11-19 21:42:04,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:04,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892981625] [2024-11-19 21:42:04,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:04,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:04,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:04,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:04,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:04,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:42:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:04,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:04,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:04,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 21:42:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:04,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:04,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:04,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:04,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:04,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:04,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:42:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:05,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:05,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:05,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:05,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:42:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:05,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:42:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:05,025 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-19 21:42:05,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:05,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892981625] [2024-11-19 21:42:05,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892981625] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:42:05,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479901364] [2024-11-19 21:42:05,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:05,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:42:05,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:42:05,029 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 21:42:05,030 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 21:42:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:05,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 1875 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 21:42:05,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:42:05,578 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 21:42:05,578 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:42:05,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479901364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:05,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:42:05,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-19 21:42:05,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669113411] [2024-11-19 21:42:05,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:05,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:42:05,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:05,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:42:05,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:42:05,580 INFO L87 Difference]: Start difference. First operand 749 states and 1194 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-19 21:42:05,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:05,956 INFO L93 Difference]: Finished difference Result 798 states and 1266 transitions. [2024-11-19 21:42:05,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:42:05,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 152 [2024-11-19 21:42:05,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:05,962 INFO L225 Difference]: With dead ends: 798 [2024-11-19 21:42:05,963 INFO L226 Difference]: Without dead ends: 783 [2024-11-19 21:42:05,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:42:05,965 INFO L432 NwaCegarLoop]: 956 mSDtfsCounter, 932 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:05,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 1745 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 21:42:05,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2024-11-19 21:42:05,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 752. [2024-11-19 21:42:05,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 608 states have (on average 1.611842105263158) internal successors, (980), 631 states have internal predecessors, (980), 107 states have call successors, (107), 33 states have call predecessors, (107), 36 states have return successors, (110), 100 states have call predecessors, (110), 102 states have call successors, (110) [2024-11-19 21:42:05,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1197 transitions. [2024-11-19 21:42:06,001 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1197 transitions. Word has length 152 [2024-11-19 21:42:06,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:06,002 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1197 transitions. [2024-11-19 21:42:06,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-19 21:42:06,002 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1197 transitions. [2024-11-19 21:42:06,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-19 21:42:06,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:06,006 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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 21:42:06,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-19 21:42:06,207 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 21:42:06,207 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:06,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:06,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1208811538, now seen corresponding path program 1 times [2024-11-19 21:42:06,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:06,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133248268] [2024-11-19 21:42:06,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:06,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:42:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 21:42:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:42:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:42:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:42:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 21:42:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:06,718 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-19 21:42:06,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:06,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133248268] [2024-11-19 21:42:06,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133248268] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:42:06,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500505891] [2024-11-19 21:42:06,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:06,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:42:06,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:42:06,721 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 21:42:06,722 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 21:42:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 1891 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 21:42:07,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:42:07,147 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 21:42:07,148 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:42:07,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500505891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:07,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:42:07,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-19 21:42:07,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827926807] [2024-11-19 21:42:07,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:07,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:42:07,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:07,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:42:07,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:42:07,149 INFO L87 Difference]: Start difference. First operand 752 states and 1197 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 21:42:07,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:07,171 INFO L93 Difference]: Finished difference Result 767 states and 1215 transitions. [2024-11-19 21:42:07,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:42:07,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 1 states have call successors, (17) Word has length 158 [2024-11-19 21:42:07,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:07,178 INFO L225 Difference]: With dead ends: 767 [2024-11-19 21:42:07,178 INFO L226 Difference]: Without dead ends: 752 [2024-11-19 21:42:07,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:42:07,179 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 0 mSDsluCounter, 2885 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:07,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3848 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:42:07,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2024-11-19 21:42:07,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2024-11-19 21:42:07,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 608 states have (on average 1.6101973684210527) internal successors, (979), 631 states have internal predecessors, (979), 107 states have call successors, (107), 33 states have call predecessors, (107), 36 states have return successors, (110), 100 states have call predecessors, (110), 102 states have call successors, (110) [2024-11-19 21:42:07,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1196 transitions. [2024-11-19 21:42:07,205 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1196 transitions. Word has length 158 [2024-11-19 21:42:07,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:07,205 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1196 transitions. [2024-11-19 21:42:07,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 21:42:07,206 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1196 transitions. [2024-11-19 21:42:07,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-19 21:42:07,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:07,210 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-19 21:42:07,222 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 21:42:07,411 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 21:42:07,411 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:07,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:07,411 INFO L85 PathProgramCache]: Analyzing trace with hash -883423181, now seen corresponding path program 1 times [2024-11-19 21:42:07,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:07,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905290534] [2024-11-19 21:42:07,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:07,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:42:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 21:42:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:42:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:42:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:42:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 21:42:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 21:42:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:07,938 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-19 21:42:07,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:07,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905290534] [2024-11-19 21:42:07,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905290534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:42:07,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978680433] [2024-11-19 21:42:07,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:07,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:42:07,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:42:07,940 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 21:42:07,941 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 21:42:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:08,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 1928 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 21:42:08,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:42:08,352 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-19 21:42:08,352 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:42:08,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978680433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:08,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:42:08,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-19 21:42:08,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356636574] [2024-11-19 21:42:08,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:08,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:42:08,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:08,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:42:08,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:42:08,354 INFO L87 Difference]: Start difference. First operand 752 states and 1196 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), 2 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 21:42:08,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:08,406 INFO L93 Difference]: Finished difference Result 1478 states and 2362 transitions. [2024-11-19 21:42:08,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:42:08,407 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), 2 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2024-11-19 21:42:08,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:08,412 INFO L225 Difference]: With dead ends: 1478 [2024-11-19 21:42:08,412 INFO L226 Difference]: Without dead ends: 721 [2024-11-19 21:42:08,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:42:08,416 INFO L432 NwaCegarLoop]: 957 mSDtfsCounter, 7 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:08,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2864 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:42:08,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-11-19 21:42:08,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 721. [2024-11-19 21:42:08,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 580 states have (on average 1.6086206896551725) internal successors, (933), 601 states have internal predecessors, (933), 106 states have call successors, (106), 33 states have call predecessors, (106), 34 states have return successors, (107), 99 states have call predecessors, (107), 101 states have call successors, (107) [2024-11-19 21:42:08,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1146 transitions. [2024-11-19 21:42:08,439 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1146 transitions. Word has length 169 [2024-11-19 21:42:08,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:08,440 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1146 transitions. [2024-11-19 21:42:08,440 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), 2 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 21:42:08,440 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1146 transitions. [2024-11-19 21:42:08,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-19 21:42:08,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:08,444 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1] [2024-11-19 21:42:08,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-19 21:42:08,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:42:08,644 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:08,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:08,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1003737438, now seen corresponding path program 1 times [2024-11-19 21:42:08,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:08,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403303107] [2024-11-19 21:42:08,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:08,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:08,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:08,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:08,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:08,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-19 21:42:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:08,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:08,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:09,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 21:42:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:09,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:09,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:09,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:09,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:09,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:42:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:09,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:09,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:09,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:09,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:42:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:09,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:42:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:09,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 21:42:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:09,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 21:42:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-19 21:42:09,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:09,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403303107] [2024-11-19 21:42:09,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403303107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:42:09,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474297770] [2024-11-19 21:42:09,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:09,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:42:09,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:42:09,215 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 21:42:09,217 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 21:42:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:09,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 1931 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 21:42:09,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:42:09,654 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 21:42:09,655 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:42:09,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474297770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:09,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:42:09,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-19 21:42:09,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662380937] [2024-11-19 21:42:09,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:09,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:42:09,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:09,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:42:09,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-19 21:42:09,656 INFO L87 Difference]: Start difference. First operand 721 states and 1146 transitions. Second operand has 7 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 21:42:09,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:09,721 INFO L93 Difference]: Finished difference Result 1411 states and 2256 transitions. [2024-11-19 21:42:09,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 21:42:09,722 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 171 [2024-11-19 21:42:09,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:09,728 INFO L225 Difference]: With dead ends: 1411 [2024-11-19 21:42:09,728 INFO L226 Difference]: Without dead ends: 721 [2024-11-19 21:42:09,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:42:09,731 INFO L432 NwaCegarLoop]: 975 mSDtfsCounter, 119 mSDsluCounter, 4749 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 5724 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:09,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 5724 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:42:09,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-11-19 21:42:09,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 700. [2024-11-19 21:42:09,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 559 states have (on average 1.6082289803220036) internal successors, (899), 580 states have internal predecessors, (899), 106 states have call successors, (106), 33 states have call predecessors, (106), 34 states have return successors, (107), 99 states have call predecessors, (107), 101 states have call successors, (107) [2024-11-19 21:42:09,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1112 transitions. [2024-11-19 21:42:09,754 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1112 transitions. Word has length 171 [2024-11-19 21:42:09,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:09,754 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 1112 transitions. [2024-11-19 21:42:09,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 21:42:09,754 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1112 transitions. [2024-11-19 21:42:09,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-19 21:42:09,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:09,758 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2024-11-19 21:42:09,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-19 21:42:09,958 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,SelfDestructingSolverStorable24 [2024-11-19 21:42:09,959 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:09,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:09,959 INFO L85 PathProgramCache]: Analyzing trace with hash -438623911, now seen corresponding path program 1 times [2024-11-19 21:42:09,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:09,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71963107] [2024-11-19 21:42:09,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:09,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-19 21:42:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 21:42:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:42:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:42:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:42:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 21:42:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 21:42:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,499 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 21:42:10,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:10,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71963107] [2024-11-19 21:42:10,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71963107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:42:10,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897257809] [2024-11-19 21:42:10,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:10,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:42:10,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:42:10,502 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 21:42:10,505 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 21:42:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:10,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 1937 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:42:10,954 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:42:10,986 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 21:42:10,986 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:42:10,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897257809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:10,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:42:10,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-19 21:42:10,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513232433] [2024-11-19 21:42:10,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:10,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:42:10,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:10,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:42:10,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:42:10,988 INFO L87 Difference]: Start difference. First operand 700 states and 1112 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 21:42:11,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:11,079 INFO L93 Difference]: Finished difference Result 1393 states and 2226 transitions. [2024-11-19 21:42:11,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:42:11,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2024-11-19 21:42:11,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:11,087 INFO L225 Difference]: With dead ends: 1393 [2024-11-19 21:42:11,087 INFO L226 Difference]: Without dead ends: 724 [2024-11-19 21:42:11,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:42:11,090 INFO L432 NwaCegarLoop]: 940 mSDtfsCounter, 128 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:11,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 2743 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:42:11,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-19 21:42:11,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 700. [2024-11-19 21:42:11,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 559 states have (on average 1.6064400715563507) internal successors, (898), 580 states have internal predecessors, (898), 106 states have call successors, (106), 33 states have call predecessors, (106), 34 states have return successors, (107), 99 states have call predecessors, (107), 101 states have call successors, (107) [2024-11-19 21:42:11,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1111 transitions. [2024-11-19 21:42:11,124 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1111 transitions. Word has length 173 [2024-11-19 21:42:11,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:11,124 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 1111 transitions. [2024-11-19 21:42:11,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 21:42:11,125 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1111 transitions. [2024-11-19 21:42:11,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-19 21:42:11,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:11,129 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2024-11-19 21:42:11,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-19 21:42:11,329 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,SelfDestructingSolverStorable25 [2024-11-19 21:42:11,329 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:11,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:11,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1148831082, now seen corresponding path program 1 times [2024-11-19 21:42:11,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:11,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185045673] [2024-11-19 21:42:11,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:11,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 21:42:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-19 21:42:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:42:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:42:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:42:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 21:42:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 21:42:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:11,947 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 21:42:11,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:11,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185045673] [2024-11-19 21:42:11,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185045673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:11,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:42:11,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:42:11,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529604055] [2024-11-19 21:42:11,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:11,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:42:11,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:11,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:42:11,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:42:11,949 INFO L87 Difference]: Start difference. First operand 700 states and 1111 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 21:42:16,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:16,874 INFO L93 Difference]: Finished difference Result 1634 states and 2655 transitions. [2024-11-19 21:42:16,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:42:16,874 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 174 [2024-11-19 21:42:16,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:16,880 INFO L225 Difference]: With dead ends: 1634 [2024-11-19 21:42:16,880 INFO L226 Difference]: Without dead ends: 951 [2024-11-19 21:42:16,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-19 21:42:16,882 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 1494 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 3042 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1582 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 3411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 3042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:16,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1582 Valid, 1744 Invalid, 3411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 3042 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-19 21:42:16,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2024-11-19 21:42:17,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 660. [2024-11-19 21:42:17,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 522 states have (on average 1.5996168582375478) internal successors, (835), 541 states have internal predecessors, (835), 105 states have call successors, (105), 33 states have call predecessors, (105), 32 states have return successors, (104), 98 states have call predecessors, (104), 100 states have call successors, (104) [2024-11-19 21:42:17,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 1044 transitions. [2024-11-19 21:42:17,008 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 1044 transitions. Word has length 174 [2024-11-19 21:42:17,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:17,008 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 1044 transitions. [2024-11-19 21:42:17,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 21:42:17,009 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 1044 transitions. [2024-11-19 21:42:17,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-19 21:42:17,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:17,011 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2024-11-19 21:42:17,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 21:42:17,012 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:17,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:17,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1824234686, now seen corresponding path program 1 times [2024-11-19 21:42:17,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:17,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069888021] [2024-11-19 21:42:17,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:17,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 21:42:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:42:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-19 21:42:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:42:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:42:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:42:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 21:42:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 21:42:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:17,651 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-19 21:42:17,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:17,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069888021] [2024-11-19 21:42:17,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069888021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:17,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:42:17,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 21:42:17,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448892044] [2024-11-19 21:42:17,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:17,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 21:42:17,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:17,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 21:42:17,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:42:17,653 INFO L87 Difference]: Start difference. First operand 660 states and 1044 transitions. Second operand has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 21:42:23,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:23,938 INFO L93 Difference]: Finished difference Result 1510 states and 2451 transitions. [2024-11-19 21:42:23,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 21:42:23,938 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 175 [2024-11-19 21:42:23,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:23,944 INFO L225 Difference]: With dead ends: 1510 [2024-11-19 21:42:23,945 INFO L226 Difference]: Without dead ends: 951 [2024-11-19 21:42:23,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-19 21:42:23,947 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 1465 mSDsluCounter, 2666 mSDsCounter, 0 mSdLazyCounter, 5663 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 6024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 5663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:23,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1553 Valid, 3134 Invalid, 6024 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [361 Valid, 5663 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-19 21:42:23,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2024-11-19 21:42:24,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 660. [2024-11-19 21:42:24,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 522 states have (on average 1.5977011494252873) internal successors, (834), 541 states have internal predecessors, (834), 105 states have call successors, (105), 33 states have call predecessors, (105), 32 states have return successors, (104), 98 states have call predecessors, (104), 100 states have call successors, (104) [2024-11-19 21:42:24,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 1043 transitions. [2024-11-19 21:42:24,053 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 1043 transitions. Word has length 175 [2024-11-19 21:42:24,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:24,053 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 1043 transitions. [2024-11-19 21:42:24,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 21:42:24,054 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 1043 transitions. [2024-11-19 21:42:24,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-19 21:42:24,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:24,056 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:42:24,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 21:42:24,057 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:24,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:24,057 INFO L85 PathProgramCache]: Analyzing trace with hash 916642059, now seen corresponding path program 1 times [2024-11-19 21:42:24,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:24,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118544144] [2024-11-19 21:42:24,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:24,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 21:42:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:42:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-19 21:42:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:42:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:42:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:42:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 21:42:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 21:42:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:24,631 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-19 21:42:24,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:24,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118544144] [2024-11-19 21:42:24,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118544144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:24,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:42:24,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:42:24,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582144075] [2024-11-19 21:42:24,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:24,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:42:24,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:24,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:42:24,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:42:24,633 INFO L87 Difference]: Start difference. First operand 660 states and 1043 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 21:42:28,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:28,942 INFO L93 Difference]: Finished difference Result 1556 states and 2516 transitions. [2024-11-19 21:42:28,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 21:42:28,943 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 176 [2024-11-19 21:42:28,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:28,949 INFO L225 Difference]: With dead ends: 1556 [2024-11-19 21:42:28,949 INFO L226 Difference]: Without dead ends: 939 [2024-11-19 21:42:28,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-19 21:42:28,951 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 1947 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 2881 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 3403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 2881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:28,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 1697 Invalid, 3403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 2881 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-19 21:42:28,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2024-11-19 21:42:29,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 648. [2024-11-19 21:42:29,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 510 states have (on average 1.607843137254902) internal successors, (820), 529 states have internal predecessors, (820), 105 states have call successors, (105), 33 states have call predecessors, (105), 32 states have return successors, (104), 98 states have call predecessors, (104), 100 states have call successors, (104) [2024-11-19 21:42:29,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1029 transitions. [2024-11-19 21:42:29,076 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1029 transitions. Word has length 176 [2024-11-19 21:42:29,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:29,076 INFO L471 AbstractCegarLoop]: Abstraction has 648 states and 1029 transitions. [2024-11-19 21:42:29,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 21:42:29,076 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1029 transitions. [2024-11-19 21:42:29,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-19 21:42:29,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:29,080 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:42:29,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-19 21:42:29,080 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:29,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:29,080 INFO L85 PathProgramCache]: Analyzing trace with hash -993037555, now seen corresponding path program 1 times [2024-11-19 21:42:29,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:29,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13461006] [2024-11-19 21:42:29,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:29,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 21:42:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:42:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-19 21:42:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:42:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:42:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:42:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 21:42:29,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 21:42:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:29,666 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-19 21:42:29,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:29,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13461006] [2024-11-19 21:42:29,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13461006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:29,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:42:29,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 21:42:29,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645316545] [2024-11-19 21:42:29,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:29,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 21:42:29,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:29,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 21:42:29,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:42:29,667 INFO L87 Difference]: Start difference. First operand 648 states and 1029 transitions. Second operand has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 21:42:36,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:36,371 INFO L93 Difference]: Finished difference Result 1558 states and 2519 transitions. [2024-11-19 21:42:36,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 21:42:36,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 176 [2024-11-19 21:42:36,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:36,380 INFO L225 Difference]: With dead ends: 1558 [2024-11-19 21:42:36,380 INFO L226 Difference]: Without dead ends: 947 [2024-11-19 21:42:36,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-19 21:42:36,384 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 1020 mSDsluCounter, 2708 mSDsCounter, 0 mSdLazyCounter, 5679 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 3168 SdHoareTripleChecker+Invalid, 5887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 5679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:36,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 3168 Invalid, 5887 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [208 Valid, 5679 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-19 21:42:36,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2024-11-19 21:42:36,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 652. [2024-11-19 21:42:36,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 514 states have (on average 1.6011673151750974) internal successors, (823), 533 states have internal predecessors, (823), 105 states have call successors, (105), 33 states have call predecessors, (105), 32 states have return successors, (104), 98 states have call predecessors, (104), 100 states have call successors, (104) [2024-11-19 21:42:36,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 1032 transitions. [2024-11-19 21:42:36,558 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 1032 transitions. Word has length 176 [2024-11-19 21:42:36,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:36,558 INFO L471 AbstractCegarLoop]: Abstraction has 652 states and 1032 transitions. [2024-11-19 21:42:36,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 21:42:36,559 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 1032 transitions. [2024-11-19 21:42:36,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-19 21:42:36,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:36,562 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:42:36,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-19 21:42:36,562 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:36,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:36,563 INFO L85 PathProgramCache]: Analyzing trace with hash 497552407, now seen corresponding path program 1 times [2024-11-19 21:42:36,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:36,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446417789] [2024-11-19 21:42:36,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:36,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:36,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 21:42:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:42:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-19 21:42:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:42:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:42:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:42:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 21:42:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 21:42:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,866 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-19 21:42:37,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:37,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446417789] [2024-11-19 21:42:37,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446417789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:42:37,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980250142] [2024-11-19 21:42:37,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:37,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:42:37,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:42:37,870 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 21:42:37,871 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 21:42:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:38,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 1942 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-19 21:42:38,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:42:38,560 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-19 21:42:38,560 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:42:38,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980250142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:38,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:42:38,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15] total 20 [2024-11-19 21:42:38,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888042859] [2024-11-19 21:42:38,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:38,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:42:38,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:38,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:42:38,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2024-11-19 21:42:38,562 INFO L87 Difference]: Start difference. First operand 652 states and 1032 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 5 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-19 21:42:41,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:41,057 INFO L93 Difference]: Finished difference Result 1926 states and 3141 transitions. [2024-11-19 21:42:41,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 21:42:41,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 5 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 177 [2024-11-19 21:42:41,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:41,069 INFO L225 Difference]: With dead ends: 1926 [2024-11-19 21:42:41,069 INFO L226 Difference]: Without dead ends: 1381 [2024-11-19 21:42:41,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=100, Invalid=770, Unknown=0, NotChecked=0, Total=870 [2024-11-19 21:42:41,074 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 2274 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 3751 mSolverCounterSat, 508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2364 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 4259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 3751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:41,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2364 Valid, 2050 Invalid, 4259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 3751 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-19 21:42:41,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2024-11-19 21:42:41,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1292. [2024-11-19 21:42:41,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1010 states have (on average 1.621782178217822) internal successors, (1638), 1047 states have internal predecessors, (1638), 215 states have call successors, (215), 61 states have call predecessors, (215), 66 states have return successors, (241), 208 states have call predecessors, (241), 210 states have call successors, (241) [2024-11-19 21:42:41,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 2094 transitions. [2024-11-19 21:42:41,305 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 2094 transitions. Word has length 177 [2024-11-19 21:42:41,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:41,306 INFO L471 AbstractCegarLoop]: Abstraction has 1292 states and 2094 transitions. [2024-11-19 21:42:41,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 5 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-19 21:42:41,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 2094 transitions. [2024-11-19 21:42:41,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-19 21:42:41,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:41,309 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:42:41,317 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 21:42:41,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:42:41,509 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:41,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:41,510 INFO L85 PathProgramCache]: Analyzing trace with hash 894831572, now seen corresponding path program 1 times [2024-11-19 21:42:41,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:41,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156252538] [2024-11-19 21:42:41,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:41,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:41,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 21:42:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:42:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-19 21:42:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:42:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:42:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:42:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 21:42:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-19 21:42:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-19 21:42:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 21:42:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:42,502 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-19 21:42:42,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:42,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156252538] [2024-11-19 21:42:42,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156252538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:42,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:42:42,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 21:42:42,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690806133] [2024-11-19 21:42:42,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:42,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 21:42:42,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:42,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 21:42:42,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:42:42,505 INFO L87 Difference]: Start difference. First operand 1292 states and 2094 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 6 states have internal predecessors, (113), 4 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19)