./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/product-lines/elevator_spec1_product17.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 09d600be73ca435c113b9c0e8e087d96a910d62ea2126c235d6963c00b3a91c2 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 20:27:40,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 20:27:40,505 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 20:27:40,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 20:27:40,512 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 20:27:40,543 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 20:27:40,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 20:27:40,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 20:27:40,544 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 20:27:40,545 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 20:27:40,545 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 20:27:40,545 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 20:27:40,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 20:27:40,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 20:27:40,547 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 20:27:40,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 20:27:40,548 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 20:27:40,548 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 20:27:40,548 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 20:27:40,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 20:27:40,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 20:27:40,550 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 20:27:40,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 20:27:40,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 20:27:40,551 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 20:27:40,551 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 20:27:40,551 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 20:27:40,552 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 20:27:40,552 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 20:27:40,552 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 20:27:40,553 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 20:27:40,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 20:27:40,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:27:40,559 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 20:27:40,559 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 20:27:40,560 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 20:27:40,560 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 20:27:40,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 20:27:40,561 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 20:27:40,561 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 20:27:40,561 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 20:27:40,562 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 20:27:40,562 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09d600be73ca435c113b9c0e8e087d96a910d62ea2126c235d6963c00b3a91c2 [2024-11-11 20:27:40,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 20:27:40,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 20:27:40,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 20:27:40,840 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 20:27:40,841 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 20:27:40,842 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c [2024-11-11 20:27:42,283 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 20:27:42,589 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 20:27:42,592 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c [2024-11-11 20:27:42,620 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9495377ca/23ed4d230dac4f23b19d64fd98dfb0ab/FLAGcefacb6a8 [2024-11-11 20:27:42,856 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9495377ca/23ed4d230dac4f23b19d64fd98dfb0ab [2024-11-11 20:27:42,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 20:27:42,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 20:27:42,863 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 20:27:42,863 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 20:27:42,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 20:27:42,870 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:27:42" (1/1) ... [2024-11-11 20:27:42,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cf10048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:27:42, skipping insertion in model container [2024-11-11 20:27:42,871 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:27:42" (1/1) ... [2024-11-11 20:27:42,936 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 20:27:43,298 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_product17.cil.c[27470,27483] [2024-11-11 20:27:43,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:27:43,484 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 20:27:43,494 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2024-11-11 20:27:43,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [721] [2024-11-11 20:27:43,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1087] [2024-11-11 20:27:43,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1103] [2024-11-11 20:27:43,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1112] [2024-11-11 20:27:43,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1150] [2024-11-11 20:27:43,497 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [2604] [2024-11-11 20:27:43,497 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2785] [2024-11-11 20:27:43,497 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2878] [2024-11-11 20:27:43,497 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3228] [2024-11-11 20:27:43,557 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_product17.cil.c[27470,27483] [2024-11-11 20:27:43,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:27:43,652 INFO L204 MainTranslator]: Completed translation [2024-11-11 20:27:43,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:27:43 WrapperNode [2024-11-11 20:27:43,653 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 20:27:43,654 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 20:27:43,654 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 20:27:43,654 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 20:27:43,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:27:43" (1/1) ... [2024-11-11 20:27:43,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:27:43" (1/1) ... [2024-11-11 20:27:43,754 INFO L138 Inliner]: procedures = 90, calls = 333, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 790 [2024-11-11 20:27:43,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 20:27:43,755 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 20:27:43,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 20:27:43,755 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 20:27:43,764 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:27:43" (1/1) ... [2024-11-11 20:27:43,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:27:43" (1/1) ... [2024-11-11 20:27:43,771 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:27:43" (1/1) ... [2024-11-11 20:27:43,802 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]. [2024-11-11 20:27:43,803 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:27:43" (1/1) ... [2024-11-11 20:27:43,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:27:43" (1/1) ... [2024-11-11 20:27:43,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:27:43" (1/1) ... [2024-11-11 20:27:43,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:27:43" (1/1) ... [2024-11-11 20:27:43,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:27:43" (1/1) ... [2024-11-11 20:27:43,840 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:27:43" (1/1) ... [2024-11-11 20:27:43,848 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 20:27:43,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 20:27:43,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 20:27:43,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 20:27:43,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:27:43" (1/1) ... [2024-11-11 20:27:43,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:27:43,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:27:43,895 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) [2024-11-11 20:27:43,904 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 [2024-11-11 20:27:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2024-11-11 20:27:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2024-11-11 20:27:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 20:27:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-11 20:27:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-11 20:27:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-11 20:27:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-11 20:27:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-11 20:27:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-11 20:27:43,942 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-11 20:27:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-11 20:27:43,942 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-11 20:27:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-11 20:27:43,942 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-11 20:27:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-11 20:27:43,942 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-11 20:27:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-11 20:27:43,943 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-11 20:27:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-11 20:27:43,943 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-11 20:27:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-11 20:27:43,943 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-11 20:27:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-11 20:27:43,943 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-11 20:27:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-11 20:27:43,943 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-11 20:27:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-11 20:27:43,944 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-11 20:27:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-11 20:27:43,944 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-11 20:27:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-11 20:27:43,944 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-11 20:27:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-11 20:27:43,944 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-11 20:27:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-11 20:27:43,945 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-11 20:27:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-11 20:27:43,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 20:27:43,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 20:27:43,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 20:27:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-11 20:27:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-11 20:27:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-11 20:27:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-11 20:27:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-11 20:27:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-11 20:27:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-11 20:27:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-11 20:27:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-11 20:27:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-11 20:27:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-11 20:27:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-11 20:27:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-11 20:27:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-11 20:27:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-11 20:27:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-11 20:27:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-11 20:27:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-11 20:27:43,949 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-11 20:27:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-11 20:27:43,949 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-11 20:27:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-11 20:27:43,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-11 20:27:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 20:27:43,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 20:27:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-11 20:27:43,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-11 20:27:44,126 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 20:27:44,128 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 20:27:45,238 INFO L? ?]: Removed 427 outVars from TransFormulas that were not future-live. [2024-11-11 20:27:45,238 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 20:27:45,268 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 20:27:45,270 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 20:27:45,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:27:45 BoogieIcfgContainer [2024-11-11 20:27:45,272 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 20:27:45,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 20:27:45,277 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 20:27:45,280 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 20:27:45,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 08:27:42" (1/3) ... [2024-11-11 20:27:45,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5b2d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:27:45, skipping insertion in model container [2024-11-11 20:27:45,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:27:43" (2/3) ... [2024-11-11 20:27:45,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5b2d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:27:45, skipping insertion in model container [2024-11-11 20:27:45,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:27:45" (3/3) ... [2024-11-11 20:27:45,282 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product17.cil.c [2024-11-11 20:27:45,299 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 20:27:45,299 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 20:27:45,384 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 20:27:45,392 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;@329d8c4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 20:27:45,392 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 20:27:45,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 539 states, 424 states have (on average 1.705188679245283) internal successors, (723), 445 states have internal predecessors, (723), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-11 20:27:45,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-11 20:27:45,422 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:27:45,425 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:27:45,426 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:27:45,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:27:45,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1594208609, now seen corresponding path program 1 times [2024-11-11 20:27:45,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:27:45,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778937440] [2024-11-11 20:27:45,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:45,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:27:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:46,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:27:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:46,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:46,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:27:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:46,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:27:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:46,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:46,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:27:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:46,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-11 20:27:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:46,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:46,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:46,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:27:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:46,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:27:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:27:46,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:27:46,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778937440] [2024-11-11 20:27:46,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778937440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:27:46,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022679311] [2024-11-11 20:27:46,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:46,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:27:46,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:27:46,867 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) [2024-11-11 20:27:46,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 20:27:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:47,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-11 20:27:47,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:27:47,312 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-11 20:27:47,315 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:27:47,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022679311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:27:47,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:27:47,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2024-11-11 20:27:47,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782722629] [2024-11-11 20:27:47,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:27:47,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 20:27:47,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:27:47,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 20:27:47,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:27:47,356 INFO L87 Difference]: Start difference. First operand has 539 states, 424 states have (on average 1.705188679245283) internal successors, (723), 445 states have internal predecessors, (723), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-11 20:27:47,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:27:47,451 INFO L93 Difference]: Finished difference Result 560 states and 935 transitions. [2024-11-11 20:27:47,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 20:27:47,454 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 97 [2024-11-11 20:27:47,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:27:47,475 INFO L225 Difference]: With dead ends: 560 [2024-11-11 20:27:47,475 INFO L226 Difference]: Without dead ends: 531 [2024-11-11 20:27:47,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:27:47,483 INFO L435 NwaCegarLoop]: 896 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, 896 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 [2024-11-11 20:27:47,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:27:47,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-11 20:27:47,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-11 20:27:47,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 418 states have (on average 1.7033492822966507) internal successors, (712), 437 states have internal predecessors, (712), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-11 20:27:47,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 889 transitions. [2024-11-11 20:27:47,577 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 889 transitions. Word has length 97 [2024-11-11 20:27:47,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:27:47,579 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 889 transitions. [2024-11-11 20:27:47,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-11 20:27:47,579 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 889 transitions. [2024-11-11 20:27:47,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-11 20:27:47,589 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:27:47,590 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:27:47,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-11 20:27:47,790 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 [2024-11-11 20:27:47,791 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:27:47,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:27:47,792 INFO L85 PathProgramCache]: Analyzing trace with hash -365707531, now seen corresponding path program 1 times [2024-11-11 20:27:47,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:27:47,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576783109] [2024-11-11 20:27:47,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:47,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:27:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:48,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:27:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:48,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:48,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:27:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:48,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:27:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:48,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:48,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:27:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:48,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-11 20:27:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:48,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:48,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:48,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:27:48,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:48,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:27:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:48,706 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:27:48,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:27:48,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576783109] [2024-11-11 20:27:48,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576783109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:27:48,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153881565] [2024-11-11 20:27:48,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:48,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:27:48,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:27:48,712 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) [2024-11-11 20:27:48,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 20:27:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:49,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 1773 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:27:49,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:27:49,143 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-11 20:27:49,144 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:27:49,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153881565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:27:49,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:27:49,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-11 20:27:49,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765666740] [2024-11-11 20:27:49,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:27:49,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:27:49,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:27:49,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:27:49,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:27:49,147 INFO L87 Difference]: Start difference. First operand 531 states and 889 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:27:49,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:27:49,232 INFO L93 Difference]: Finished difference Result 1053 states and 1770 transitions. [2024-11-11 20:27:49,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 20:27:49,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2024-11-11 20:27:49,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:27:49,240 INFO L225 Difference]: With dead ends: 1053 [2024-11-11 20:27:49,241 INFO L226 Difference]: Without dead ends: 531 [2024-11-11 20:27:49,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:27:49,249 INFO L435 NwaCegarLoop]: 877 mSDtfsCounter, 5 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2625 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 [2024-11-11 20:27:49,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2625 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:27:49,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-11 20:27:49,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-11 20:27:49,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 418 states have (on average 1.700956937799043) internal successors, (711), 437 states have internal predecessors, (711), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-11 20:27:49,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 888 transitions. [2024-11-11 20:27:49,289 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 888 transitions. Word has length 99 [2024-11-11 20:27:49,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:27:49,290 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 888 transitions. [2024-11-11 20:27:49,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:27:49,290 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 888 transitions. [2024-11-11 20:27:49,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 20:27:49,295 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:27:49,295 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:27:49,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-11 20:27:49,495 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 [2024-11-11 20:27:49,496 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:27:49,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:27:49,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1062806691, now seen corresponding path program 1 times [2024-11-11 20:27:49,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:27:49,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906003241] [2024-11-11 20:27:49,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:49,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:27:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:49,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:27:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:49,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:49,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:27:49,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:49,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:27:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:49,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:49,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:27:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:50,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 20:27:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:50,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:50,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:50,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:27:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:50,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:27:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:50,196 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:27:50,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:27:50,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906003241] [2024-11-11 20:27:50,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906003241] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:27:50,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800066332] [2024-11-11 20:27:50,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:50,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:27:50,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:27:50,199 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) [2024-11-11 20:27:50,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 20:27:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:50,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 1775 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:27:50,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:27:50,579 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-11 20:27:50,579 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:27:50,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800066332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:27:50,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:27:50,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-11 20:27:50,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3085634] [2024-11-11 20:27:50,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:27:50,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:27:50,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:27:50,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:27:50,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:27:50,582 INFO L87 Difference]: Start difference. First operand 531 states and 888 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:27:50,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:27:50,688 INFO L93 Difference]: Finished difference Result 1053 states and 1768 transitions. [2024-11-11 20:27:50,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 20:27:50,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2024-11-11 20:27:50,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:27:50,694 INFO L225 Difference]: With dead ends: 1053 [2024-11-11 20:27:50,695 INFO L226 Difference]: Without dead ends: 531 [2024-11-11 20:27:50,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:27:50,699 INFO L435 NwaCegarLoop]: 877 mSDtfsCounter, 4 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2625 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 [2024-11-11 20:27:50,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2625 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:27:50,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-11 20:27:50,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-11 20:27:50,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 418 states have (on average 1.6985645933014355) internal successors, (710), 437 states have internal predecessors, (710), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-11 20:27:50,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 887 transitions. [2024-11-11 20:27:50,731 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 887 transitions. Word has length 101 [2024-11-11 20:27:50,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:27:50,732 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 887 transitions. [2024-11-11 20:27:50,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:27:50,732 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 887 transitions. [2024-11-11 20:27:50,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-11 20:27:50,736 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:27:50,737 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:27:50,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-11 20:27:50,937 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 [2024-11-11 20:27:50,938 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:27:50,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:27:50,938 INFO L85 PathProgramCache]: Analyzing trace with hash -706454475, now seen corresponding path program 1 times [2024-11-11 20:27:50,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:27:50,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092368598] [2024-11-11 20:27:50,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:50,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:27:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:51,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:27:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:51,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:51,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:51,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:27:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:51,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 20:27:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:51,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:51,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:27:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:51,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 20:27:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:51,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:51,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:51,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:27:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:51,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:27:51,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:51,634 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:27:51,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:27:51,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092368598] [2024-11-11 20:27:51,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092368598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:27:51,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145582431] [2024-11-11 20:27:51,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:51,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:27:51,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:27:51,637 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) [2024-11-11 20:27:51,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 20:27:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:51,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:27:51,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:27:52,011 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-11 20:27:52,012 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:27:52,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145582431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:27:52,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:27:52,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-11 20:27:52,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121486503] [2024-11-11 20:27:52,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:27:52,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:27:52,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:27:52,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:27:52,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:27:52,014 INFO L87 Difference]: Start difference. First operand 531 states and 887 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:27:52,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:27:52,092 INFO L93 Difference]: Finished difference Result 1060 states and 1775 transitions. [2024-11-11 20:27:52,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:27:52,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-11-11 20:27:52,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:27:52,097 INFO L225 Difference]: With dead ends: 1060 [2024-11-11 20:27:52,097 INFO L226 Difference]: Without dead ends: 540 [2024-11-11 20:27:52,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:27:52,101 INFO L435 NwaCegarLoop]: 876 mSDtfsCounter, 13 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2622 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 [2024-11-11 20:27:52,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2622 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:27:52,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-11 20:27:52,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2024-11-11 20:27:52,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 426 states have (on average 1.6948356807511737) internal successors, (722), 445 states have internal predecessors, (722), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-11 20:27:52,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 899 transitions. [2024-11-11 20:27:52,122 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 899 transitions. Word has length 103 [2024-11-11 20:27:52,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:27:52,123 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 899 transitions. [2024-11-11 20:27:52,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:27:52,123 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 899 transitions. [2024-11-11 20:27:52,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-11 20:27:52,126 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:27:52,126 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:27:52,147 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-11 20:27:52,327 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 [2024-11-11 20:27:52,327 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:27:52,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:27:52,328 INFO L85 PathProgramCache]: Analyzing trace with hash -480058764, now seen corresponding path program 1 times [2024-11-11 20:27:52,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:27:52,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893828131] [2024-11-11 20:27:52,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:52,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:27:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:52,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:27:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:52,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:52,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:27:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:52,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:27:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:52,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:52,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:27:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:52,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-11 20:27:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:52,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:52,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:52,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:27:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:52,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:27:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:52,997 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:27:52,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:27:52,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893828131] [2024-11-11 20:27:52,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893828131] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:27:52,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380724870] [2024-11-11 20:27:52,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:52,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:27:52,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:27:53,000 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) [2024-11-11 20:27:53,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 20:27:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:53,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:27:53,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:27:53,353 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-11 20:27:53,353 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:27:53,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380724870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:27:53,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:27:53,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-11 20:27:53,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554422639] [2024-11-11 20:27:53,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:27:53,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:27:53,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:27:53,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:27:53,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:27:53,355 INFO L87 Difference]: Start difference. First operand 540 states and 899 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:27:53,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:27:53,426 INFO L93 Difference]: Finished difference Result 1062 states and 1776 transitions. [2024-11-11 20:27:53,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:27:53,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-11-11 20:27:53,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:27:53,430 INFO L225 Difference]: With dead ends: 1062 [2024-11-11 20:27:53,431 INFO L226 Difference]: Without dead ends: 540 [2024-11-11 20:27:53,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:27:53,435 INFO L435 NwaCegarLoop]: 876 mSDtfsCounter, 11 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2622 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 [2024-11-11 20:27:53,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2622 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:27:53,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-11 20:27:53,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2024-11-11 20:27:53,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 426 states have (on average 1.692488262910798) internal successors, (721), 445 states have internal predecessors, (721), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-11 20:27:53,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 898 transitions. [2024-11-11 20:27:53,457 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 898 transitions. Word has length 104 [2024-11-11 20:27:53,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:27:53,458 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 898 transitions. [2024-11-11 20:27:53,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:27:53,458 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 898 transitions. [2024-11-11 20:27:53,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-11 20:27:53,461 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:27:53,461 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:27:53,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-11 20:27:53,661 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 [2024-11-11 20:27:53,662 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:27:53,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:27:53,662 INFO L85 PathProgramCache]: Analyzing trace with hash 701773849, now seen corresponding path program 1 times [2024-11-11 20:27:53,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:27:53,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249002614] [2024-11-11 20:27:53,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:53,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:27:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:53,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:27:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:53,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:53,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:27:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:53,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 20:27:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:53,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:53,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:27:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:54,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:27:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:54,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:54,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:54,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:27:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:54,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:27:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:54,328 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:27:54,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:27:54,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249002614] [2024-11-11 20:27:54,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249002614] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:27:54,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299155031] [2024-11-11 20:27:54,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:54,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:27:54,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:27:54,331 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) [2024-11-11 20:27:54,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-11 20:27:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:54,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:27:54,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:27:54,708 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-11 20:27:54,708 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:27:54,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299155031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:27:54,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:27:54,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-11 20:27:54,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677580066] [2024-11-11 20:27:54,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:27:54,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:27:54,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:27:54,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:27:54,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:27:54,711 INFO L87 Difference]: Start difference. First operand 540 states and 898 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:27:54,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:27:54,782 INFO L93 Difference]: Finished difference Result 1062 states and 1775 transitions. [2024-11-11 20:27:54,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:27:54,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-11-11 20:27:54,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:27:54,787 INFO L225 Difference]: With dead ends: 1062 [2024-11-11 20:27:54,787 INFO L226 Difference]: Without dead ends: 540 [2024-11-11 20:27:54,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:27:54,790 INFO L435 NwaCegarLoop]: 876 mSDtfsCounter, 10 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2622 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 [2024-11-11 20:27:54,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2622 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:27:54,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-11 20:27:54,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2024-11-11 20:27:54,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 426 states have (on average 1.6901408450704225) internal successors, (720), 445 states have internal predecessors, (720), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-11 20:27:54,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 897 transitions. [2024-11-11 20:27:54,809 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 897 transitions. Word has length 105 [2024-11-11 20:27:54,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:27:54,809 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 897 transitions. [2024-11-11 20:27:54,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:27:54,809 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 897 transitions. [2024-11-11 20:27:54,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-11 20:27:54,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:27:54,812 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:27:54,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-11 20:27:55,012 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 [2024-11-11 20:27:55,013 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:27:55,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:27:55,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1437379352, now seen corresponding path program 1 times [2024-11-11 20:27:55,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:27:55,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061116434] [2024-11-11 20:27:55,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:55,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:27:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:55,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:27:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:55,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:55,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:27:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:55,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 20:27:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:55,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:55,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:27:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:55,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 20:27:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:55,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:55,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:55,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:27:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:55,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:27:55,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:55,787 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-11 20:27:55,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:27:55,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061116434] [2024-11-11 20:27:55,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061116434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:27:55,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59270611] [2024-11-11 20:27:55,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:55,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:27:55,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:27:55,816 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) [2024-11-11 20:27:55,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-11 20:27:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:56,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-11 20:27:56,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:27:56,267 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 20:27:56,268 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:27:56,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59270611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:27:56,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:27:56,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-11 20:27:56,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872321348] [2024-11-11 20:27:56,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:27:56,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:27:56,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:27:56,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:27:56,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:27:56,271 INFO L87 Difference]: Start difference. First operand 540 states and 897 transitions. Second operand has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:27:56,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:27:56,391 INFO L93 Difference]: Finished difference Result 1081 states and 1805 transitions. [2024-11-11 20:27:56,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:27:56,392 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 106 [2024-11-11 20:27:56,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:27:56,400 INFO L225 Difference]: With dead ends: 1081 [2024-11-11 20:27:56,400 INFO L226 Difference]: Without dead ends: 563 [2024-11-11 20:27:56,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-11 20:27:56,404 INFO L435 NwaCegarLoop]: 877 mSDtfsCounter, 100 mSDsluCounter, 4299 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5176 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:27:56,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5176 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:27:56,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-11-11 20:27:56,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 559. [2024-11-11 20:27:56,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 442 states have (on average 1.6877828054298643) internal successors, (746), 463 states have internal predecessors, (746), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (90), 85 states have call predecessors, (90), 87 states have call successors, (90) [2024-11-11 20:27:56,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 928 transitions. [2024-11-11 20:27:56,426 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 928 transitions. Word has length 106 [2024-11-11 20:27:56,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:27:56,427 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 928 transitions. [2024-11-11 20:27:56,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:27:56,427 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 928 transitions. [2024-11-11 20:27:56,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-11 20:27:56,430 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:27:56,430 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:27:56,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-11 20:27:56,630 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 [2024-11-11 20:27:56,631 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:27:56,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:27:56,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1052012569, now seen corresponding path program 1 times [2024-11-11 20:27:56,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:27:56,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647039497] [2024-11-11 20:27:56,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:56,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:27:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:56,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:27:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:56,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:56,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:27:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:56,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 20:27:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:56,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:56,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:27:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:57,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 20:27:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:57,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:57,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:57,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:27:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:57,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:27:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:57,250 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-11 20:27:57,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:27:57,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647039497] [2024-11-11 20:27:57,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647039497] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:27:57,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570337201] [2024-11-11 20:27:57,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:57,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:27:57,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:27:57,252 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) [2024-11-11 20:27:57,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-11 20:27:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:57,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:27:57,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:27:57,582 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 20:27:57,583 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:27:57,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570337201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:27:57,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:27:57,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-11 20:27:57,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250661263] [2024-11-11 20:27:57,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:27:57,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:27:57,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:27:57,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:27:57,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:27:57,585 INFO L87 Difference]: Start difference. First operand 559 states and 928 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:27:57,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:27:57,718 INFO L93 Difference]: Finished difference Result 1137 states and 1906 transitions. [2024-11-11 20:27:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 20:27:57,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-11-11 20:27:57,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:27:57,724 INFO L225 Difference]: With dead ends: 1137 [2024-11-11 20:27:57,724 INFO L226 Difference]: Without dead ends: 574 [2024-11-11 20:27:57,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:27:57,728 INFO L435 NwaCegarLoop]: 851 mSDtfsCounter, 76 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2513 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 [2024-11-11 20:27:57,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2513 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:27:57,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-11 20:27:57,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 559. [2024-11-11 20:27:57,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 442 states have (on average 1.6764705882352942) internal successors, (741), 463 states have internal predecessors, (741), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (90), 85 states have call predecessors, (90), 87 states have call successors, (90) [2024-11-11 20:27:57,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 923 transitions. [2024-11-11 20:27:57,749 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 923 transitions. Word has length 106 [2024-11-11 20:27:57,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:27:57,749 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 923 transitions. [2024-11-11 20:27:57,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:27:57,750 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 923 transitions. [2024-11-11 20:27:57,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-11 20:27:57,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:27:57,752 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:27:57,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-11 20:27:57,953 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 [2024-11-11 20:27:57,953 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:27:57,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:27:57,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1192894943, now seen corresponding path program 1 times [2024-11-11 20:27:57,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:27:57,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31228172] [2024-11-11 20:27:57,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:57,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:27:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:58,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:27:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:58,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:58,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:27:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:58,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 20:27:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:58,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:58,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:27:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:58,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:27:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:58,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:58,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:58,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:27:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:58,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:27:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:58,592 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-11 20:27:58,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:27:58,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31228172] [2024-11-11 20:27:58,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31228172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:27:58,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574752487] [2024-11-11 20:27:58,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:58,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:27:58,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:27:58,595 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) [2024-11-11 20:27:58,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-11 20:27:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:58,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:27:58,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:27:58,942 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 20:27:58,942 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:27:58,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574752487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:27:58,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:27:58,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-11 20:27:58,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762306864] [2024-11-11 20:27:58,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:27:58,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:27:58,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:27:58,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:27:58,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:27:58,944 INFO L87 Difference]: Start difference. First operand 559 states and 923 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:27:59,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:27:59,073 INFO L93 Difference]: Finished difference Result 1137 states and 1896 transitions. [2024-11-11 20:27:59,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 20:27:59,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-11-11 20:27:59,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:27:59,079 INFO L225 Difference]: With dead ends: 1137 [2024-11-11 20:27:59,080 INFO L226 Difference]: Without dead ends: 574 [2024-11-11 20:27:59,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:27:59,083 INFO L435 NwaCegarLoop]: 851 mSDtfsCounter, 75 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2513 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 [2024-11-11 20:27:59,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2513 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:27:59,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-11 20:27:59,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 559. [2024-11-11 20:27:59,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 442 states have (on average 1.665158371040724) internal successors, (736), 463 states have internal predecessors, (736), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (90), 85 states have call predecessors, (90), 87 states have call successors, (90) [2024-11-11 20:27:59,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 918 transitions. [2024-11-11 20:27:59,104 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 918 transitions. Word has length 108 [2024-11-11 20:27:59,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:27:59,104 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 918 transitions. [2024-11-11 20:27:59,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:27:59,104 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 918 transitions. [2024-11-11 20:27:59,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-11 20:27:59,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:27:59,107 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:27:59,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-11 20:27:59,307 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 [2024-11-11 20:27:59,308 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:27:59,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:27:59,308 INFO L85 PathProgramCache]: Analyzing trace with hash 973349433, now seen corresponding path program 1 times [2024-11-11 20:27:59,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:27:59,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356015056] [2024-11-11 20:27:59,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:59,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:27:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:59,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:27:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:59,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:59,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:27:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:59,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:27:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:59,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:59,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:27:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:59,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:27:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:59,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:59,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:27:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:59,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:27:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:59,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:27:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:27:59,921 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-11 20:27:59,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:27:59,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356015056] [2024-11-11 20:27:59,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356015056] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:27:59,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567956366] [2024-11-11 20:27:59,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:27:59,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:27:59,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:27:59,925 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) [2024-11-11 20:27:59,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-11 20:28:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:00,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 1783 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:28:00,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:00,263 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 20:28:00,264 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:00,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567956366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:00,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:00,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-11 20:28:00,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146643854] [2024-11-11 20:28:00,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:00,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:28:00,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:00,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:28:00,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:28:00,265 INFO L87 Difference]: Start difference. First operand 559 states and 918 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:28:00,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:00,433 INFO L93 Difference]: Finished difference Result 1188 states and 1968 transitions. [2024-11-11 20:28:00,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:28:00,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-11 20:28:00,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:00,439 INFO L225 Difference]: With dead ends: 1188 [2024-11-11 20:28:00,439 INFO L226 Difference]: Without dead ends: 655 [2024-11-11 20:28:00,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:28:00,442 INFO L435 NwaCegarLoop]: 884 mSDtfsCounter, 130 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2544 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 [2024-11-11 20:28:00,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2544 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:28:00,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-11 20:28:00,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 610. [2024-11-11 20:28:00,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 492 states have (on average 1.66869918699187) internal successors, (821), 513 states have internal predecessors, (821), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (89), 85 states have call predecessors, (89), 87 states have call successors, (89) [2024-11-11 20:28:00,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 1002 transitions. [2024-11-11 20:28:00,466 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 1002 transitions. Word has length 110 [2024-11-11 20:28:00,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:00,469 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 1002 transitions. [2024-11-11 20:28:00,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:28:00,470 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 1002 transitions. [2024-11-11 20:28:00,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-11 20:28:00,473 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:00,473 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:28:00,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-11 20:28:00,673 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 [2024-11-11 20:28:00,674 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:00,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:00,674 INFO L85 PathProgramCache]: Analyzing trace with hash -806284545, now seen corresponding path program 1 times [2024-11-11 20:28:00,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:00,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792000043] [2024-11-11 20:28:00,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:00,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:00,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:00,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:01,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:01,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:28:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:01,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:01,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:01,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 20:28:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:01,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:01,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:01,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:28:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:01,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:28:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 20:28:01,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:01,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792000043] [2024-11-11 20:28:01,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792000043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:01,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120803403] [2024-11-11 20:28:01,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:01,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:01,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:01,413 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) [2024-11-11 20:28:01,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-11 20:28:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:01,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-11 20:28:01,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:01,808 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 20:28:01,810 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:01,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120803403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:01,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:01,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 14 [2024-11-11 20:28:01,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699338368] [2024-11-11 20:28:01,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:01,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 20:28:01,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:01,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 20:28:01,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-11 20:28:01,813 INFO L87 Difference]: Start difference. First operand 610 states and 1002 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:28:01,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:01,956 INFO L93 Difference]: Finished difference Result 1150 states and 1897 transitions. [2024-11-11 20:28:01,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 20:28:01,957 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 111 [2024-11-11 20:28:01,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:01,961 INFO L225 Difference]: With dead ends: 1150 [2024-11-11 20:28:01,961 INFO L226 Difference]: Without dead ends: 632 [2024-11-11 20:28:01,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-11 20:28:01,965 INFO L435 NwaCegarLoop]: 857 mSDtfsCounter, 113 mSDsluCounter, 5053 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 5910 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 [2024-11-11 20:28:01,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 5910 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:28:01,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-11-11 20:28:01,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 610. [2024-11-11 20:28:01,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 492 states have (on average 1.66869918699187) internal successors, (821), 513 states have internal predecessors, (821), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (89), 85 states have call predecessors, (89), 87 states have call successors, (89) [2024-11-11 20:28:01,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 1002 transitions. [2024-11-11 20:28:01,986 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 1002 transitions. Word has length 111 [2024-11-11 20:28:01,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:01,986 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 1002 transitions. [2024-11-11 20:28:01,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:28:01,987 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 1002 transitions. [2024-11-11 20:28:01,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-11 20:28:01,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:01,990 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:28:02,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-11 20:28:02,191 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 [2024-11-11 20:28:02,191 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:02,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:02,192 INFO L85 PathProgramCache]: Analyzing trace with hash 996001823, now seen corresponding path program 1 times [2024-11-11 20:28:02,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:02,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336248638] [2024-11-11 20:28:02,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:02,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:02,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:02,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:02,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:02,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:28:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:02,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:02,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:02,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 20:28:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:02,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:02,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:02,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:28:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:02,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:28:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:02,736 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-11 20:28:02,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:02,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336248638] [2024-11-11 20:28:02,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336248638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:02,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555800670] [2024-11-11 20:28:02,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:02,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:02,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:02,740 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) [2024-11-11 20:28:02,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-11 20:28:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:03,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 1784 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:28:03,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:03,130 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 20:28:03,133 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:03,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555800670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:03,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:03,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-11 20:28:03,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262334023] [2024-11-11 20:28:03,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:03,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:28:03,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:03,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:28:03,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:28:03,135 INFO L87 Difference]: Start difference. First operand 610 states and 1002 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:28:03,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:03,304 INFO L93 Difference]: Finished difference Result 1191 states and 1969 transitions. [2024-11-11 20:28:03,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:28:03,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-11 20:28:03,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:03,309 INFO L225 Difference]: With dead ends: 1191 [2024-11-11 20:28:03,310 INFO L226 Difference]: Without dead ends: 643 [2024-11-11 20:28:03,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:28:03,313 INFO L435 NwaCegarLoop]: 883 mSDtfsCounter, 124 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 2517 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 [2024-11-11 20:28:03,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 2517 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:28:03,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-11 20:28:03,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 610. [2024-11-11 20:28:03,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 492 states have (on average 1.6585365853658536) internal successors, (816), 513 states have internal predecessors, (816), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (89), 85 states have call predecessors, (89), 87 states have call successors, (89) [2024-11-11 20:28:03,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 997 transitions. [2024-11-11 20:28:03,333 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 997 transitions. Word has length 111 [2024-11-11 20:28:03,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:03,333 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 997 transitions. [2024-11-11 20:28:03,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:28:03,333 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 997 transitions. [2024-11-11 20:28:03,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-11 20:28:03,336 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:03,336 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:28:03,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-11 20:28:03,536 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 [2024-11-11 20:28:03,537 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:03,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:03,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1615772002, now seen corresponding path program 1 times [2024-11-11 20:28:03,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:03,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588424692] [2024-11-11 20:28:03,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:03,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:03,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:03,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:03,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:03,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:28:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:03,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:03,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:04,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 20:28:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:04,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:04,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:04,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:28:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:04,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:28:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:04,140 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 20:28:04,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:04,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588424692] [2024-11-11 20:28:04,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588424692] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:04,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668844304] [2024-11-11 20:28:04,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:04,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:04,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:04,144 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) [2024-11-11 20:28:04,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-11 20:28:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:04,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-11 20:28:04,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:04,574 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-11 20:28:04,574 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:04,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668844304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:04,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:04,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-11 20:28:04,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783293387] [2024-11-11 20:28:04,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:04,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:28:04,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:04,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:28:04,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:28:04,575 INFO L87 Difference]: Start difference. First operand 610 states and 997 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:28:04,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:04,657 INFO L93 Difference]: Finished difference Result 1085 states and 1789 transitions. [2024-11-11 20:28:04,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:28:04,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 111 [2024-11-11 20:28:04,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:04,662 INFO L225 Difference]: With dead ends: 1085 [2024-11-11 20:28:04,663 INFO L226 Difference]: Without dead ends: 634 [2024-11-11 20:28:04,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-11 20:28:04,665 INFO L435 NwaCegarLoop]: 870 mSDtfsCounter, 86 mSDsluCounter, 4271 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 5141 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:28:04,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 5141 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:28:04,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-11-11 20:28:04,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 629. [2024-11-11 20:28:04,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 508 states have (on average 1.6574803149606299) internal successors, (842), 531 states have internal predecessors, (842), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-11 20:28:04,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1027 transitions. [2024-11-11 20:28:04,686 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1027 transitions. Word has length 111 [2024-11-11 20:28:04,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:04,686 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 1027 transitions. [2024-11-11 20:28:04,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:28:04,686 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1027 transitions. [2024-11-11 20:28:04,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-11 20:28:04,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:04,690 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:28:04,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-11 20:28:04,893 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 [2024-11-11 20:28:04,894 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:04,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:04,894 INFO L85 PathProgramCache]: Analyzing trace with hash -2082574163, now seen corresponding path program 1 times [2024-11-11 20:28:04,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:04,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925733706] [2024-11-11 20:28:04,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:04,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:05,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:05,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:05,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:05,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:28:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:05,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:05,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:05,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-11 20:28:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:05,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:05,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:05,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:28:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:05,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:28:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-11 20:28:05,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:05,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925733706] [2024-11-11 20:28:05,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925733706] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:05,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430368249] [2024-11-11 20:28:05,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:05,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:05,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:05,491 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) [2024-11-11 20:28:05,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-11 20:28:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:05,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-11 20:28:05,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-11 20:28:05,949 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:05,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430368249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:05,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:05,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-11 20:28:05,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839067397] [2024-11-11 20:28:05,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:05,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:28:05,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:05,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:28:05,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-11 20:28:05,951 INFO L87 Difference]: Start difference. First operand 629 states and 1027 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:28:06,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:06,025 INFO L93 Difference]: Finished difference Result 1115 states and 1840 transitions. [2024-11-11 20:28:06,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:28:06,026 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2024-11-11 20:28:06,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:06,030 INFO L225 Difference]: With dead ends: 1115 [2024-11-11 20:28:06,031 INFO L226 Difference]: Without dead ends: 664 [2024-11-11 20:28:06,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:28:06,033 INFO L435 NwaCegarLoop]: 870 mSDtfsCounter, 95 mSDsluCounter, 4261 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 5131 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 [2024-11-11 20:28:06,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 5131 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:28:06,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-11-11 20:28:06,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 629. [2024-11-11 20:28:06,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 508 states have (on average 1.6574803149606299) internal successors, (842), 531 states have internal predecessors, (842), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-11 20:28:06,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1027 transitions. [2024-11-11 20:28:06,055 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1027 transitions. Word has length 112 [2024-11-11 20:28:06,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:06,055 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 1027 transitions. [2024-11-11 20:28:06,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:28:06,056 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1027 transitions. [2024-11-11 20:28:06,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-11 20:28:06,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:06,059 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:28:06,079 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-11 20:28:06,259 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 [2024-11-11 20:28:06,259 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:06,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:06,260 INFO L85 PathProgramCache]: Analyzing trace with hash -744370899, now seen corresponding path program 1 times [2024-11-11 20:28:06,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:06,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837305083] [2024-11-11 20:28:06,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:06,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:06,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:06,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:06,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:06,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:28:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:06,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:06,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:06,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-11 20:28:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:06,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:06,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:06,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:28:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:06,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:28:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:06,815 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 20:28:06,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:06,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837305083] [2024-11-11 20:28:06,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837305083] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:06,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631645187] [2024-11-11 20:28:06,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:06,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:06,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:06,818 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) [2024-11-11 20:28:06,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-11 20:28:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:07,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-11 20:28:07,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:07,243 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-11 20:28:07,243 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:07,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631645187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:07,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:07,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-11 20:28:07,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408330348] [2024-11-11 20:28:07,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:07,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 20:28:07,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:07,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 20:28:07,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-11-11 20:28:07,245 INFO L87 Difference]: Start difference. First operand 629 states and 1027 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:28:07,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:07,380 INFO L93 Difference]: Finished difference Result 1100 states and 1814 transitions. [2024-11-11 20:28:07,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 20:28:07,382 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2024-11-11 20:28:07,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:07,387 INFO L225 Difference]: With dead ends: 1100 [2024-11-11 20:28:07,388 INFO L226 Difference]: Without dead ends: 649 [2024-11-11 20:28:07,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-11-11 20:28:07,392 INFO L435 NwaCegarLoop]: 859 mSDtfsCounter, 113 mSDsluCounter, 5059 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 5918 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 [2024-11-11 20:28:07,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 5918 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:28:07,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-11-11 20:28:07,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 629. [2024-11-11 20:28:07,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 508 states have (on average 1.6574803149606299) internal successors, (842), 531 states have internal predecessors, (842), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-11 20:28:07,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1027 transitions. [2024-11-11 20:28:07,419 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1027 transitions. Word has length 112 [2024-11-11 20:28:07,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:07,420 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 1027 transitions. [2024-11-11 20:28:07,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:28:07,420 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1027 transitions. [2024-11-11 20:28:07,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-11 20:28:07,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:07,424 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:28:07,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-11 20:28:07,624 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 [2024-11-11 20:28:07,625 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:07,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:07,626 INFO L85 PathProgramCache]: Analyzing trace with hash 461750229, now seen corresponding path program 1 times [2024-11-11 20:28:07,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:07,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924201877] [2024-11-11 20:28:07,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:07,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:07,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:07,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:07,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:07,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:28:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:07,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:07,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:28:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:08,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-11 20:28:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:08,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:08,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:08,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:28:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:08,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:28:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:08,224 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-11 20:28:08,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:08,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924201877] [2024-11-11 20:28:08,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924201877] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:08,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094403224] [2024-11-11 20:28:08,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:08,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:08,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:08,230 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) [2024-11-11 20:28:08,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-11 20:28:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:08,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:28:08,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:08,643 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-11 20:28:08,643 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:08,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094403224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:08,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:08,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-11 20:28:08,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377244970] [2024-11-11 20:28:08,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:08,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:28:08,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:08,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:28:08,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:28:08,646 INFO L87 Difference]: Start difference. First operand 629 states and 1027 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:28:08,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:08,693 INFO L93 Difference]: Finished difference Result 1152 states and 1899 transitions. [2024-11-11 20:28:08,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:28:08,694 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2024-11-11 20:28:08,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:08,699 INFO L225 Difference]: With dead ends: 1152 [2024-11-11 20:28:08,699 INFO L226 Difference]: Without dead ends: 629 [2024-11-11 20:28:08,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:28:08,701 INFO L435 NwaCegarLoop]: 865 mSDtfsCounter, 13 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2591 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 [2024-11-11 20:28:08,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2591 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:28:08,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-11-11 20:28:08,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2024-11-11 20:28:08,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 508 states have (on average 1.6496062992125984) internal successors, (838), 531 states have internal predecessors, (838), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-11 20:28:08,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1023 transitions. [2024-11-11 20:28:08,721 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1023 transitions. Word has length 112 [2024-11-11 20:28:08,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:08,721 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 1023 transitions. [2024-11-11 20:28:08,721 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:28:08,721 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1023 transitions. [2024-11-11 20:28:08,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 20:28:08,724 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:08,724 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:28:08,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-11 20:28:08,925 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 [2024-11-11 20:28:08,925 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:08,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:08,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1116279402, now seen corresponding path program 1 times [2024-11-11 20:28:08,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:08,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194819825] [2024-11-11 20:28:08,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:08,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:09,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:09,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:09,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:09,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:28:09,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:09,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:09,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:09,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:28:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:09,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:09,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:09,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:28:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:09,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:28:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:09,498 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-11 20:28:09,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:09,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194819825] [2024-11-11 20:28:09,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194819825] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:09,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713260812] [2024-11-11 20:28:09,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:09,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:09,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:09,500 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) [2024-11-11 20:28:09,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-11 20:28:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:09,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-11 20:28:09,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:09,897 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-11 20:28:09,897 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:09,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713260812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:09,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:09,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-11 20:28:09,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269519178] [2024-11-11 20:28:09,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:09,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 20:28:09,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:09,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 20:28:09,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:28:09,899 INFO L87 Difference]: Start difference. First operand 629 states and 1023 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:28:10,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:10,039 INFO L93 Difference]: Finished difference Result 1100 states and 1811 transitions. [2024-11-11 20:28:10,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 20:28:10,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 113 [2024-11-11 20:28:10,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:10,046 INFO L225 Difference]: With dead ends: 1100 [2024-11-11 20:28:10,046 INFO L226 Difference]: Without dead ends: 649 [2024-11-11 20:28:10,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:28:10,049 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 121 mSDsluCounter, 5021 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 5874 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 [2024-11-11 20:28:10,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 5874 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:28:10,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-11-11 20:28:10,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 629. [2024-11-11 20:28:10,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 508 states have (on average 1.6496062992125984) internal successors, (838), 531 states have internal predecessors, (838), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-11 20:28:10,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1023 transitions. [2024-11-11 20:28:10,070 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1023 transitions. Word has length 113 [2024-11-11 20:28:10,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:10,071 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 1023 transitions. [2024-11-11 20:28:10,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:28:10,071 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1023 transitions. [2024-11-11 20:28:10,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-11 20:28:10,074 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:10,074 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:28:10,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-11 20:28:10,275 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 [2024-11-11 20:28:10,275 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:10,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:10,276 INFO L85 PathProgramCache]: Analyzing trace with hash -588544878, now seen corresponding path program 1 times [2024-11-11 20:28:10,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:10,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889488517] [2024-11-11 20:28:10,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:10,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:10,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:10,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:10,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:10,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:28:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:10,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:10,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:10,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 20:28:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:10,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:10,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:10,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:28:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:10,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:28:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:10,849 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-11 20:28:10,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:10,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889488517] [2024-11-11 20:28:10,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889488517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:10,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673698357] [2024-11-11 20:28:10,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:10,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:10,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:10,851 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) [2024-11-11 20:28:10,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-11 20:28:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:11,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-11 20:28:11,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:11,217 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 20:28:11,218 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:11,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673698357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:11,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:11,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-11 20:28:11,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797901043] [2024-11-11 20:28:11,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:11,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:28:11,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:11,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:28:11,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:28:11,220 INFO L87 Difference]: Start difference. First operand 629 states and 1023 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:28:11,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:11,267 INFO L93 Difference]: Finished difference Result 1196 states and 1967 transitions. [2024-11-11 20:28:11,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 20:28:11,268 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 114 [2024-11-11 20:28:11,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:11,273 INFO L225 Difference]: With dead ends: 1196 [2024-11-11 20:28:11,273 INFO L226 Difference]: Without dead ends: 653 [2024-11-11 20:28:11,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:28:11,276 INFO L435 NwaCegarLoop]: 859 mSDtfsCounter, 6 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2564 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 [2024-11-11 20:28:11,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2564 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:28:11,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2024-11-11 20:28:11,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 653. [2024-11-11 20:28:11,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 532 states have (on average 1.6278195488721805) internal successors, (866), 555 states have internal predecessors, (866), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-11 20:28:11,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 1051 transitions. [2024-11-11 20:28:11,295 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 1051 transitions. Word has length 114 [2024-11-11 20:28:11,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:11,296 INFO L471 AbstractCegarLoop]: Abstraction has 653 states and 1051 transitions. [2024-11-11 20:28:11,296 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:28:11,296 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 1051 transitions. [2024-11-11 20:28:11,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-11 20:28:11,299 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:11,299 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:28:11,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-11 20:28:11,500 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 [2024-11-11 20:28:11,500 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:11,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:11,501 INFO L85 PathProgramCache]: Analyzing trace with hash 939496016, now seen corresponding path program 1 times [2024-11-11 20:28:11,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:11,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093151641] [2024-11-11 20:28:11,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:11,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:11,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:11,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:11,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:11,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:28:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:11,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:11,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:12,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 20:28:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:12,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:12,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:12,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 20:28:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:12,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:28:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:12,085 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-11 20:28:12,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:12,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093151641] [2024-11-11 20:28:12,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093151641] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:12,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969077792] [2024-11-11 20:28:12,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:12,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:12,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:12,087 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) [2024-11-11 20:28:12,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-11 20:28:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:12,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 1782 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-11 20:28:12,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:12,457 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:28:12,458 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:12,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969077792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:12,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:12,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-11 20:28:12,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472997080] [2024-11-11 20:28:12,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:12,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:28:12,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:12,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:28:12,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:28:12,462 INFO L87 Difference]: Start difference. First operand 653 states and 1051 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:28:12,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:12,486 INFO L93 Difference]: Finished difference Result 1101 states and 1806 transitions. [2024-11-11 20:28:12,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 20:28:12,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 114 [2024-11-11 20:28:12,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:12,492 INFO L225 Difference]: With dead ends: 1101 [2024-11-11 20:28:12,492 INFO L226 Difference]: Without dead ends: 655 [2024-11-11 20:28:12,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:28:12,494 INFO L435 NwaCegarLoop]: 873 mSDtfsCounter, 0 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:28:12,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2613 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:28:12,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-11 20:28:12,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 655. [2024-11-11 20:28:12,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 534 states have (on average 1.6254681647940075) internal successors, (868), 557 states have internal predecessors, (868), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-11 20:28:12,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 1053 transitions. [2024-11-11 20:28:12,514 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 1053 transitions. Word has length 114 [2024-11-11 20:28:12,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:12,514 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 1053 transitions. [2024-11-11 20:28:12,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:28:12,514 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 1053 transitions. [2024-11-11 20:28:12,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-11 20:28:12,517 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:12,518 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:28:12,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-11 20:28:12,718 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 [2024-11-11 20:28:12,719 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:12,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:12,719 INFO L85 PathProgramCache]: Analyzing trace with hash -266827908, now seen corresponding path program 1 times [2024-11-11 20:28:12,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:12,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035963705] [2024-11-11 20:28:12,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:12,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:12,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:12,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:12,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:12,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:28:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:12,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:12,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:13,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 20:28:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:13,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:13,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:13,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:28:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:13,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 20:28:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:13,225 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:28:13,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:13,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035963705] [2024-11-11 20:28:13,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035963705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:13,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167498733] [2024-11-11 20:28:13,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:13,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:13,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:13,228 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) [2024-11-11 20:28:13,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-11 20:28:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:13,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-11 20:28:13,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:13,716 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 20:28:13,717 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:13,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167498733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:13,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:13,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2024-11-11 20:28:13,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363360758] [2024-11-11 20:28:13,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:13,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 20:28:13,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:13,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 20:28:13,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-11 20:28:13,719 INFO L87 Difference]: Start difference. First operand 655 states and 1053 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-11 20:28:16,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:16,865 INFO L93 Difference]: Finished difference Result 1791 states and 2974 transitions. [2024-11-11 20:28:16,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 20:28:16,866 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 117 [2024-11-11 20:28:16,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:16,874 INFO L225 Difference]: With dead ends: 1791 [2024-11-11 20:28:16,874 INFO L226 Difference]: Without dead ends: 1343 [2024-11-11 20:28:16,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2024-11-11 20:28:16,877 INFO L435 NwaCegarLoop]: 951 mSDtfsCounter, 2182 mSDsluCounter, 3580 mSDsCounter, 0 mSdLazyCounter, 5816 mSolverCounterSat, 480 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2306 SdHoareTripleChecker+Valid, 4531 SdHoareTripleChecker+Invalid, 6296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 480 IncrementalHoareTripleChecker+Valid, 5816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-11 20:28:16,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2306 Valid, 4531 Invalid, 6296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [480 Valid, 5816 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-11 20:28:16,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2024-11-11 20:28:16,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1324. [2024-11-11 20:28:16,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1048 states have (on average 1.6288167938931297) internal successors, (1707), 1095 states have internal predecessors, (1707), 218 states have call successors, (218), 44 states have call predecessors, (218), 57 states have return successors, (251), 215 states have call predecessors, (251), 213 states have call successors, (251) [2024-11-11 20:28:16,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 2176 transitions. [2024-11-11 20:28:16,925 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 2176 transitions. Word has length 117 [2024-11-11 20:28:16,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:16,925 INFO L471 AbstractCegarLoop]: Abstraction has 1324 states and 2176 transitions. [2024-11-11 20:28:16,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-11 20:28:16,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 2176 transitions. [2024-11-11 20:28:16,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-11 20:28:16,931 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:16,931 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:28:16,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-11 20:28:17,131 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 [2024-11-11 20:28:17,132 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:17,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:17,132 INFO L85 PathProgramCache]: Analyzing trace with hash -408092965, now seen corresponding path program 1 times [2024-11-11 20:28:17,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:17,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573728601] [2024-11-11 20:28:17,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:17,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:17,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:17,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:17,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:17,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:28:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:17,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:17,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:17,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:17,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 20:28:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:17,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:17,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:17,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:28:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:17,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:28:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:17,677 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-11 20:28:17,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:17,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573728601] [2024-11-11 20:28:17,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573728601] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:17,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274932193] [2024-11-11 20:28:17,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:17,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:17,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:17,679 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) [2024-11-11 20:28:17,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-11 20:28:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:18,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-11 20:28:18,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:18,063 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:28:18,064 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:18,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274932193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:18,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:18,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-11 20:28:18,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910869388] [2024-11-11 20:28:18,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:18,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:28:18,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:18,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:28:18,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:28:18,065 INFO L87 Difference]: Start difference. First operand 1324 states and 2176 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:28:18,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:18,423 INFO L93 Difference]: Finished difference Result 3287 states and 5540 transitions. [2024-11-11 20:28:18,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:28:18,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 118 [2024-11-11 20:28:18,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:18,440 INFO L225 Difference]: With dead ends: 3287 [2024-11-11 20:28:18,440 INFO L226 Difference]: Without dead ends: 2282 [2024-11-11 20:28:18,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-11 20:28:18,447 INFO L435 NwaCegarLoop]: 1355 mSDtfsCounter, 715 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 4752 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 20:28:18,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 4752 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 20:28:18,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2024-11-11 20:28:18,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2263. [2024-11-11 20:28:18,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2263 states, 1763 states have (on average 1.6369824163357913) internal successors, (2886), 1844 states have internal predecessors, (2886), 401 states have call successors, (401), 80 states have call predecessors, (401), 98 states have return successors, (472), 400 states have call predecessors, (472), 396 states have call successors, (472) [2024-11-11 20:28:18,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2263 states to 2263 states and 3759 transitions. [2024-11-11 20:28:18,540 INFO L78 Accepts]: Start accepts. Automaton has 2263 states and 3759 transitions. Word has length 118 [2024-11-11 20:28:18,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:18,541 INFO L471 AbstractCegarLoop]: Abstraction has 2263 states and 3759 transitions. [2024-11-11 20:28:18,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:28:18,541 INFO L276 IsEmpty]: Start isEmpty. Operand 2263 states and 3759 transitions. [2024-11-11 20:28:18,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-11 20:28:18,548 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:18,548 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:28:18,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-11 20:28:18,749 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 [2024-11-11 20:28:18,749 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:18,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:18,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1535898628, now seen corresponding path program 1 times [2024-11-11 20:28:18,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:18,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753281646] [2024-11-11 20:28:18,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:18,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:18,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:18,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:18,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:19,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 20:28:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:19,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:19,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:19,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:28:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:19,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:19,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:19,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:28:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:19,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 20:28:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:19,379 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-11 20:28:19,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:19,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753281646] [2024-11-11 20:28:19,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753281646] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:19,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646866872] [2024-11-11 20:28:19,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:19,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:19,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:19,383 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) [2024-11-11 20:28:19,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-11 20:28:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:19,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-11 20:28:19,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:19,760 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 20:28:19,760 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:19,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646866872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:19,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:19,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2024-11-11 20:28:19,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118631494] [2024-11-11 20:28:19,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:19,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:28:19,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:19,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:28:19,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:28:19,762 INFO L87 Difference]: Start difference. First operand 2263 states and 3759 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:28:19,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:19,836 INFO L93 Difference]: Finished difference Result 4364 states and 7299 transitions. [2024-11-11 20:28:19,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 20:28:19,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 120 [2024-11-11 20:28:19,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:19,852 INFO L225 Difference]: With dead ends: 4364 [2024-11-11 20:28:19,853 INFO L226 Difference]: Without dead ends: 2299 [2024-11-11 20:28:19,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:28:19,864 INFO L435 NwaCegarLoop]: 858 mSDtfsCounter, 5 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2563 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 [2024-11-11 20:28:19,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2563 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:28:19,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2299 states. [2024-11-11 20:28:19,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2299 to 2281. [2024-11-11 20:28:19,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 1781 states have (on average 1.6372824256035934) internal successors, (2916), 1862 states have internal predecessors, (2916), 401 states have call successors, (401), 80 states have call predecessors, (401), 98 states have return successors, (472), 400 states have call predecessors, (472), 396 states have call successors, (472) [2024-11-11 20:28:19,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 3789 transitions. [2024-11-11 20:28:19,957 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 3789 transitions. Word has length 120 [2024-11-11 20:28:19,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:19,958 INFO L471 AbstractCegarLoop]: Abstraction has 2281 states and 3789 transitions. [2024-11-11 20:28:19,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-11 20:28:19,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 3789 transitions. [2024-11-11 20:28:19,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-11 20:28:19,967 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:19,967 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:28:19,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-11 20:28:20,167 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 [2024-11-11 20:28:20,168 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:20,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:20,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1928608450, now seen corresponding path program 1 times [2024-11-11 20:28:20,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:20,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489624065] [2024-11-11 20:28:20,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:20,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:20,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:20,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:20,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:20,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 20:28:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:20,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:20,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:20,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:28:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:20,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:20,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:20,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:28:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:20,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 20:28:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:20,844 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 20:28:20,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:20,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489624065] [2024-11-11 20:28:20,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489624065] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:20,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025764774] [2024-11-11 20:28:20,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:20,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:20,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:20,847 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) [2024-11-11 20:28:20,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-11 20:28:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:21,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 1798 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-11 20:28:21,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:21,303 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-11 20:28:21,304 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:21,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025764774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:21,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:21,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 21 [2024-11-11 20:28:21,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054022263] [2024-11-11 20:28:21,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:21,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 20:28:21,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:21,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 20:28:21,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2024-11-11 20:28:21,306 INFO L87 Difference]: Start difference. First operand 2281 states and 3789 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:28:21,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:21,461 INFO L93 Difference]: Finished difference Result 4306 states and 7194 transitions. [2024-11-11 20:28:21,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 20:28:21,462 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2024-11-11 20:28:21,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:21,476 INFO L225 Difference]: With dead ends: 4306 [2024-11-11 20:28:21,477 INFO L226 Difference]: Without dead ends: 2351 [2024-11-11 20:28:21,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2024-11-11 20:28:21,487 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 89 mSDsluCounter, 5042 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5895 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:28:21,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5895 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:28:21,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2024-11-11 20:28:21,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 2284. [2024-11-11 20:28:21,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 1783 states have (on average 1.6360067302299495) internal successors, (2917), 1865 states have internal predecessors, (2917), 401 states have call successors, (401), 80 states have call predecessors, (401), 99 states have return successors, (473), 400 states have call predecessors, (473), 396 states have call successors, (473) [2024-11-11 20:28:21,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3791 transitions. [2024-11-11 20:28:21,568 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3791 transitions. Word has length 121 [2024-11-11 20:28:21,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:21,568 INFO L471 AbstractCegarLoop]: Abstraction has 2284 states and 3791 transitions. [2024-11-11 20:28:21,569 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:28:21,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3791 transitions. [2024-11-11 20:28:21,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-11 20:28:21,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:21,577 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:28:21,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-11 20:28:21,777 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 [2024-11-11 20:28:21,778 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:21,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:21,778 INFO L85 PathProgramCache]: Analyzing trace with hash 232815680, now seen corresponding path program 1 times [2024-11-11 20:28:21,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:21,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510374121] [2024-11-11 20:28:21,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:21,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:21,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:22,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:22,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:22,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 20:28:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:22,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:22,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:22,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:28:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:22,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:22,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:22,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:28:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:22,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 20:28:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:22,351 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-11 20:28:22,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:22,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510374121] [2024-11-11 20:28:22,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510374121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:22,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345288360] [2024-11-11 20:28:22,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:22,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:22,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:22,354 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) [2024-11-11 20:28:22,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-11 20:28:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:22,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-11 20:28:22,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:22,865 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:28:22,866 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:22,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345288360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:22,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:22,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2024-11-11 20:28:22,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194384385] [2024-11-11 20:28:22,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:22,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:28:22,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:22,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:28:22,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:28:22,867 INFO L87 Difference]: Start difference. First operand 2284 states and 3791 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-11 20:28:23,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:23,223 INFO L93 Difference]: Finished difference Result 2497 states and 4145 transitions. [2024-11-11 20:28:23,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:28:23,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 121 [2024-11-11 20:28:23,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:23,241 INFO L225 Difference]: With dead ends: 2497 [2024-11-11 20:28:23,241 INFO L226 Difference]: Without dead ends: 2480 [2024-11-11 20:28:23,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:28:23,244 INFO L435 NwaCegarLoop]: 865 mSDtfsCounter, 857 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 20:28:23,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 2247 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 20:28:23,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2024-11-11 20:28:23,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2302. [2024-11-11 20:28:23,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 1801 states have (on average 1.6296501943364798) internal successors, (2935), 1883 states have internal predecessors, (2935), 401 states have call successors, (401), 80 states have call predecessors, (401), 99 states have return successors, (473), 400 states have call predecessors, (473), 396 states have call successors, (473) [2024-11-11 20:28:23,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3809 transitions. [2024-11-11 20:28:23,341 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3809 transitions. Word has length 121 [2024-11-11 20:28:23,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:23,342 INFO L471 AbstractCegarLoop]: Abstraction has 2302 states and 3809 transitions. [2024-11-11 20:28:23,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-11 20:28:23,342 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3809 transitions. [2024-11-11 20:28:23,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 20:28:23,350 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:23,350 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:28:23,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-11 20:28:23,551 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 [2024-11-11 20:28:23,552 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:23,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:23,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1691028997, now seen corresponding path program 1 times [2024-11-11 20:28:23,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:23,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664415446] [2024-11-11 20:28:23,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:23,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:23,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:23,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:23,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:23,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 20:28:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:23,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:23,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:24,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:28:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:24,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:24,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:24,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:28:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:24,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 20:28:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:24,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 20:28:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:24,194 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-11 20:28:24,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:24,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664415446] [2024-11-11 20:28:24,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664415446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:24,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720440446] [2024-11-11 20:28:24,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:24,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:24,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:24,195 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) [2024-11-11 20:28:24,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-11 20:28:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:24,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 1817 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-11 20:28:24,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:24,554 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:28:24,555 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:24,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720440446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:24,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:24,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-11 20:28:24,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168065383] [2024-11-11 20:28:24,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:24,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:28:24,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:24,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:28:24,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:28:24,556 INFO L87 Difference]: Start difference. First operand 2302 states and 3809 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-11 20:28:24,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:24,645 INFO L93 Difference]: Finished difference Result 2319 states and 3829 transitions. [2024-11-11 20:28:24,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:28:24,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2024-11-11 20:28:24,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:24,664 INFO L225 Difference]: With dead ends: 2319 [2024-11-11 20:28:24,664 INFO L226 Difference]: Without dead ends: 2302 [2024-11-11 20:28:24,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:28:24,673 INFO L435 NwaCegarLoop]: 872 mSDtfsCounter, 0 mSDsluCounter, 2612 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3484 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 [2024-11-11 20:28:24,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3484 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:28:24,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2024-11-11 20:28:24,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2302. [2024-11-11 20:28:24,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 1801 states have (on average 1.626318711826763) internal successors, (2929), 1883 states have internal predecessors, (2929), 401 states have call successors, (401), 80 states have call predecessors, (401), 99 states have return successors, (473), 400 states have call predecessors, (473), 396 states have call successors, (473) [2024-11-11 20:28:24,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3803 transitions. [2024-11-11 20:28:24,789 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3803 transitions. Word has length 127 [2024-11-11 20:28:24,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:24,790 INFO L471 AbstractCegarLoop]: Abstraction has 2302 states and 3803 transitions. [2024-11-11 20:28:24,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-11 20:28:24,790 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3803 transitions. [2024-11-11 20:28:24,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-11 20:28:24,801 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:24,801 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:28:24,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-11 20:28:25,002 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 [2024-11-11 20:28:25,002 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:25,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:25,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1168795695, now seen corresponding path program 1 times [2024-11-11 20:28:25,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:25,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86644849] [2024-11-11 20:28:25,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:25,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:25,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:25,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:25,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:25,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 20:28:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:25,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:25,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:25,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:28:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:25,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:25,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:25,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:28:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:25,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 20:28:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:25,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 20:28:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:25,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 20:28:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:25,649 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 20:28:25,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:25,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86644849] [2024-11-11 20:28:25,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86644849] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:25,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158146694] [2024-11-11 20:28:25,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:25,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:25,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:25,652 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) [2024-11-11 20:28:25,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-11 20:28:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:26,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 1854 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-11 20:28:26,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-11 20:28:26,089 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:26,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158146694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:26,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:26,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-11 20:28:26,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917756162] [2024-11-11 20:28:26,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:26,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:28:26,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:26,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:28:26,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:28:26,091 INFO L87 Difference]: Start difference. First operand 2302 states and 3803 transitions. Second operand has 7 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:28:26,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:26,212 INFO L93 Difference]: Finished difference Result 4459 states and 7399 transitions. [2024-11-11 20:28:26,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:28:26,214 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 138 [2024-11-11 20:28:26,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:26,233 INFO L225 Difference]: With dead ends: 4459 [2024-11-11 20:28:26,233 INFO L226 Difference]: Without dead ends: 2382 [2024-11-11 20:28:26,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:28:26,248 INFO L435 NwaCegarLoop]: 863 mSDtfsCounter, 119 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 5076 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:28:26,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 5076 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:28:26,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2024-11-11 20:28:26,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2302. [2024-11-11 20:28:26,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 1801 states have (on average 1.626318711826763) internal successors, (2929), 1883 states have internal predecessors, (2929), 401 states have call successors, (401), 80 states have call predecessors, (401), 99 states have return successors, (473), 400 states have call predecessors, (473), 396 states have call successors, (473) [2024-11-11 20:28:26,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3803 transitions. [2024-11-11 20:28:26,331 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3803 transitions. Word has length 138 [2024-11-11 20:28:26,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:26,331 INFO L471 AbstractCegarLoop]: Abstraction has 2302 states and 3803 transitions. [2024-11-11 20:28:26,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:28:26,332 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3803 transitions. [2024-11-11 20:28:26,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-11 20:28:26,340 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:26,341 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:28:26,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-11 20:28:26,541 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 [2024-11-11 20:28:26,542 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:26,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:26,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1825862916, now seen corresponding path program 1 times [2024-11-11 20:28:26,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:26,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760322133] [2024-11-11 20:28:26,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:26,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:26,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:26,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:26,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:26,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:28:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:26,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:26,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:27,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 20:28:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:27,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:27,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:27,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:28:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:27,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 20:28:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:27,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 20:28:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:27,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:28:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:27,157 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-11 20:28:27,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:27,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760322133] [2024-11-11 20:28:27,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760322133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:27,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366609495] [2024-11-11 20:28:27,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:27,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:27,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:27,159 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) [2024-11-11 20:28:27,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-11 20:28:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:27,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-11 20:28:27,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:27,527 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 20:28:27,527 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:27,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366609495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:27,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:27,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2024-11-11 20:28:27,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138049885] [2024-11-11 20:28:27,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:27,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:28:27,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:27,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:28:27,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:28:27,529 INFO L87 Difference]: Start difference. First operand 2302 states and 3803 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:28:27,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:27,625 INFO L93 Difference]: Finished difference Result 4466 states and 7408 transitions. [2024-11-11 20:28:27,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:28:27,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 138 [2024-11-11 20:28:27,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:27,648 INFO L225 Difference]: With dead ends: 4466 [2024-11-11 20:28:27,649 INFO L226 Difference]: Without dead ends: 2132 [2024-11-11 20:28:27,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-11 20:28:27,657 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 7 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2591 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 [2024-11-11 20:28:27,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2591 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:28:27,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2024-11-11 20:28:27,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 2132. [2024-11-11 20:28:27,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2132 states, 1646 states have (on average 1.6330498177399757) internal successors, (2688), 1722 states have internal predecessors, (2688), 396 states have call successors, (396), 77 states have call predecessors, (396), 89 states have return successors, (459), 394 states have call predecessors, (459), 391 states have call successors, (459) [2024-11-11 20:28:27,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 3543 transitions. [2024-11-11 20:28:27,743 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 3543 transitions. Word has length 138 [2024-11-11 20:28:27,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:27,743 INFO L471 AbstractCegarLoop]: Abstraction has 2132 states and 3543 transitions. [2024-11-11 20:28:27,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:28:27,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 3543 transitions. [2024-11-11 20:28:27,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-11 20:28:27,755 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:27,755 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:28:27,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-11 20:28:27,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-11 20:28:27,956 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:27,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:27,957 INFO L85 PathProgramCache]: Analyzing trace with hash -713032652, now seen corresponding path program 1 times [2024-11-11 20:28:27,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:27,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653202999] [2024-11-11 20:28:27,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:27,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:28,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:28,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:28,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:28,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-11 20:28:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:28,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:28,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:28,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-11 20:28:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:28,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:28,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:28,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:28:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:28,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 20:28:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:28,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 20:28:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:28,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 20:28:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:28,523 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:28:28,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:28,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653202999] [2024-11-11 20:28:28,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653202999] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:28,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194614457] [2024-11-11 20:28:28,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:28,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:28,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:28,525 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:28:28,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-11 20:28:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:28,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 1860 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:28:28,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:28,898 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-11 20:28:28,898 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:28,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194614457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:28,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:28,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-11 20:28:28,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807008544] [2024-11-11 20:28:28,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:28,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:28:28,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:28,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:28:28,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:28:28,899 INFO L87 Difference]: Start difference. First operand 2132 states and 3543 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:28:29,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:29,000 INFO L93 Difference]: Finished difference Result 4266 states and 7099 transitions. [2024-11-11 20:28:29,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:28:29,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 140 [2024-11-11 20:28:29,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:29,015 INFO L225 Difference]: With dead ends: 4266 [2024-11-11 20:28:29,015 INFO L226 Difference]: Without dead ends: 2165 [2024-11-11 20:28:29,022 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:28:29,024 INFO L435 NwaCegarLoop]: 849 mSDtfsCounter, 128 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2470 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 [2024-11-11 20:28:29,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 2470 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:28:29,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2024-11-11 20:28:29,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 2132. [2024-11-11 20:28:29,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2132 states, 1646 states have (on average 1.6324422843256379) internal successors, (2687), 1722 states have internal predecessors, (2687), 396 states have call successors, (396), 77 states have call predecessors, (396), 89 states have return successors, (459), 394 states have call predecessors, (459), 391 states have call successors, (459) [2024-11-11 20:28:29,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 3542 transitions. [2024-11-11 20:28:29,100 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 3542 transitions. Word has length 140 [2024-11-11 20:28:29,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:29,100 INFO L471 AbstractCegarLoop]: Abstraction has 2132 states and 3542 transitions. [2024-11-11 20:28:29,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:28:29,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 3542 transitions. [2024-11-11 20:28:29,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-11 20:28:29,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:29,107 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:28:29,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-11 20:28:29,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-11 20:28:29,308 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:29,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:29,309 INFO L85 PathProgramCache]: Analyzing trace with hash 696289054, now seen corresponding path program 1 times [2024-11-11 20:28:29,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:29,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494608493] [2024-11-11 20:28:29,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:29,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:29,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:29,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:29,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:29,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-11 20:28:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:29,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:29,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:29,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:28:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:29,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:29,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:29,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:28:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:30,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 20:28:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:30,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 20:28:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:30,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 20:28:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:30,007 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:28:30,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:30,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494608493] [2024-11-11 20:28:30,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494608493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:30,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:28:30,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-11 20:28:30,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493472650] [2024-11-11 20:28:30,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:30,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-11 20:28:30,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:30,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-11 20:28:30,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:28:30,009 INFO L87 Difference]: Start difference. First operand 2132 states and 3542 transitions. Second operand has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 8 states have internal predecessors, (106), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:28:38,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:38,107 INFO L93 Difference]: Finished difference Result 5375 states and 9227 transitions. [2024-11-11 20:28:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-11 20:28:38,108 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 8 states have internal predecessors, (106), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 141 [2024-11-11 20:28:38,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:38,125 INFO L225 Difference]: With dead ends: 5375 [2024-11-11 20:28:38,125 INFO L226 Difference]: Without dead ends: 3289 [2024-11-11 20:28:38,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=115, Invalid=587, Unknown=0, NotChecked=0, Total=702 [2024-11-11 20:28:38,133 INFO L435 NwaCegarLoop]: 450 mSDtfsCounter, 1392 mSDsluCounter, 3900 mSDsCounter, 0 mSdLazyCounter, 7491 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 4350 SdHoareTripleChecker+Invalid, 7852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 7491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:28:38,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1468 Valid, 4350 Invalid, 7852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [361 Valid, 7491 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-11 20:28:38,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2024-11-11 20:28:38,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 2212. [2024-11-11 20:28:38,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2212 states, 1710 states have (on average 1.6263157894736842) internal successors, (2781), 1786 states have internal predecessors, (2781), 406 states have call successors, (406), 77 states have call predecessors, (406), 95 states have return successors, (486), 408 states have call predecessors, (486), 401 states have call successors, (486) [2024-11-11 20:28:38,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2212 states to 2212 states and 3673 transitions. [2024-11-11 20:28:38,465 INFO L78 Accepts]: Start accepts. Automaton has 2212 states and 3673 transitions. Word has length 141 [2024-11-11 20:28:38,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:38,466 INFO L471 AbstractCegarLoop]: Abstraction has 2212 states and 3673 transitions. [2024-11-11 20:28:38,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 8 states have internal predecessors, (106), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:28:38,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2212 states and 3673 transitions. [2024-11-11 20:28:38,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-11 20:28:38,473 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:38,473 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:28:38,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-11 20:28:38,474 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:38,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:38,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1967551053, now seen corresponding path program 1 times [2024-11-11 20:28:38,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:38,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836788613] [2024-11-11 20:28:38,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:38,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:38,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:38,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:38,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:38,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-11 20:28:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:38,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:38,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:38,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:28:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:39,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:39,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:39,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:28:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:39,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-11 20:28:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:39,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 20:28:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:39,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 20:28:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:39,032 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-11 20:28:39,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:39,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836788613] [2024-11-11 20:28:39,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836788613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:39,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:28:39,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:28:39,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081469609] [2024-11-11 20:28:39,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:39,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:28:39,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:39,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:28:39,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:28:39,034 INFO L87 Difference]: Start difference. First operand 2212 states and 3673 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:28:43,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:43,903 INFO L93 Difference]: Finished difference Result 3735 states and 6255 transitions. [2024-11-11 20:28:43,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:28:43,904 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 145 [2024-11-11 20:28:43,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:43,913 INFO L225 Difference]: With dead ends: 3735 [2024-11-11 20:28:43,913 INFO L226 Difference]: Without dead ends: 1537 [2024-11-11 20:28:43,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:28:43,920 INFO L435 NwaCegarLoop]: 457 mSDtfsCounter, 921 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 2974 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 3175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 2974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-11 20:28:43,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 1798 Invalid, 3175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 2974 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-11 20:28:43,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2024-11-11 20:28:44,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1021. [2024-11-11 20:28:44,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 809 states have (on average 1.6205191594561186) internal successors, (1311), 842 states have internal predecessors, (1311), 167 states have call successors, (167), 42 states have call predecessors, (167), 44 states have return successors, (179), 161 states have call predecessors, (179), 162 states have call successors, (179) [2024-11-11 20:28:44,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1657 transitions. [2024-11-11 20:28:44,115 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1657 transitions. Word has length 145 [2024-11-11 20:28:44,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:44,116 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1657 transitions. [2024-11-11 20:28:44,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:28:44,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1657 transitions. [2024-11-11 20:28:44,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-11 20:28:44,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:44,119 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:28:44,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-11 20:28:44,120 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:44,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:44,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1783603339, now seen corresponding path program 1 times [2024-11-11 20:28:44,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:44,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722947313] [2024-11-11 20:28:44,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:44,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:44,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:44,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:44,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:44,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-11 20:28:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:44,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:44,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:44,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:28:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:44,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:44,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:44,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:28:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:44,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 20:28:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:44,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 20:28:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:44,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:28:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:44,791 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-11 20:28:44,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:44,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722947313] [2024-11-11 20:28:44,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722947313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:44,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980513095] [2024-11-11 20:28:44,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:44,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:44,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:44,794 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:28:44,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-11 20:28:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:45,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 1866 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 20:28:45,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:45,184 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:28:45,184 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:45,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980513095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:45,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:45,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 10 [2024-11-11 20:28:45,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391369988] [2024-11-11 20:28:45,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:45,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:28:45,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:45,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:28:45,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:28:45,186 INFO L87 Difference]: Start difference. First operand 1021 states and 1657 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:28:45,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:45,563 INFO L93 Difference]: Finished difference Result 2697 states and 4463 transitions. [2024-11-11 20:28:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:28:45,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 146 [2024-11-11 20:28:45,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:45,570 INFO L225 Difference]: With dead ends: 2697 [2024-11-11 20:28:45,570 INFO L226 Difference]: Without dead ends: 1793 [2024-11-11 20:28:45,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:28:45,573 INFO L435 NwaCegarLoop]: 940 mSDtfsCounter, 785 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1604 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:28:45,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1604 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:28:45,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2024-11-11 20:28:45,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1778. [2024-11-11 20:28:45,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1778 states, 1393 states have (on average 1.6195262024407753) internal successors, (2256), 1451 states have internal predecessors, (2256), 306 states have call successors, (306), 76 states have call predecessors, (306), 78 states have return successors, (339), 299 states have call predecessors, (339), 301 states have call successors, (339) [2024-11-11 20:28:45,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 2901 transitions. [2024-11-11 20:28:45,840 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 2901 transitions. Word has length 146 [2024-11-11 20:28:45,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:45,840 INFO L471 AbstractCegarLoop]: Abstraction has 1778 states and 2901 transitions. [2024-11-11 20:28:45,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:28:45,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 2901 transitions. [2024-11-11 20:28:45,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 20:28:45,843 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:45,843 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:28:45,863 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-11 20:28:46,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:46,045 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:46,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:46,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1299618357, now seen corresponding path program 1 times [2024-11-11 20:28:46,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:46,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216469930] [2024-11-11 20:28:46,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:46,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:46,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:46,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:46,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:46,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-11 20:28:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:46,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:46,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:46,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:28:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:46,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:46,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:46,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:28:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:46,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-11 20:28:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:46,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 20:28:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:46,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 20:28:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:46,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:28:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:46,709 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-11 20:28:46,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:46,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216469930] [2024-11-11 20:28:46,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216469930] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:46,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495896177] [2024-11-11 20:28:46,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:46,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:46,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:46,712 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:28:46,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-11 20:28:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:47,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 1888 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 20:28:47,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:47,094 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:28:47,094 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:47,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495896177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:47,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:47,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9 [2024-11-11 20:28:47,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186999197] [2024-11-11 20:28:47,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:47,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:28:47,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:47,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:28:47,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:28:47,096 INFO L87 Difference]: Start difference. First operand 1778 states and 2901 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:28:47,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:47,694 INFO L93 Difference]: Finished difference Result 4959 states and 8219 transitions. [2024-11-11 20:28:47,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:28:47,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 151 [2024-11-11 20:28:47,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:47,713 INFO L225 Difference]: With dead ends: 4959 [2024-11-11 20:28:47,713 INFO L226 Difference]: Without dead ends: 3311 [2024-11-11 20:28:47,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:28:47,721 INFO L435 NwaCegarLoop]: 808 mSDtfsCounter, 847 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:28:47,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 1438 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:28:47,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3311 states. [2024-11-11 20:28:48,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3311 to 3293. [2024-11-11 20:28:48,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3293 states, 2562 states have (on average 1.6311475409836065) internal successors, (4179), 2674 states have internal predecessors, (4179), 584 states have call successors, (584), 144 states have call predecessors, (584), 146 states have return successors, (672), 572 states have call predecessors, (672), 579 states have call successors, (672) [2024-11-11 20:28:48,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3293 states to 3293 states and 5435 transitions. [2024-11-11 20:28:48,393 INFO L78 Accepts]: Start accepts. Automaton has 3293 states and 5435 transitions. Word has length 151 [2024-11-11 20:28:48,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:48,394 INFO L471 AbstractCegarLoop]: Abstraction has 3293 states and 5435 transitions. [2024-11-11 20:28:48,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:28:48,394 INFO L276 IsEmpty]: Start isEmpty. Operand 3293 states and 5435 transitions. [2024-11-11 20:28:48,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-11 20:28:48,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:48,397 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:28:48,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-11 20:28:48,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-11 20:28:48,598 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:48,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:48,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1386233081, now seen corresponding path program 1 times [2024-11-11 20:28:48,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:48,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322210121] [2024-11-11 20:28:48,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:48,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:48,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:48,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:48,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:48,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-11 20:28:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:48,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:48,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:49,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:28:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:49,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:49,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:49,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:28:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:49,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-11 20:28:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:49,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 20:28:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:49,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 20:28:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:49,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:28:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-11 20:28:49,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:49,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322210121] [2024-11-11 20:28:49,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322210121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:28:49,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481796575] [2024-11-11 20:28:49,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:49,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:49,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:28:49,383 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:28:49,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-11 20:28:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:49,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 1892 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:28:49,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:28:49,800 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:28:49,800 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:28:49,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481796575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:49,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:28:49,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-11 20:28:49,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192038279] [2024-11-11 20:28:49,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:49,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:28:49,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:49,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:28:49,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-11 20:28:49,802 INFO L87 Difference]: Start difference. First operand 3293 states and 5435 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:28:50,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:28:50,575 INFO L93 Difference]: Finished difference Result 5945 states and 9949 transitions. [2024-11-11 20:28:50,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:28:50,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 154 [2024-11-11 20:28:50,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:28:50,594 INFO L225 Difference]: With dead ends: 5945 [2024-11-11 20:28:50,594 INFO L226 Difference]: Without dead ends: 3311 [2024-11-11 20:28:50,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:28:50,606 INFO L435 NwaCegarLoop]: 872 mSDtfsCounter, 313 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:28:50,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 2425 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:28:50,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3311 states. [2024-11-11 20:28:51,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3311 to 3293. [2024-11-11 20:28:51,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3293 states, 2562 states have (on average 1.624512099921936) internal successors, (4162), 2674 states have internal predecessors, (4162), 584 states have call successors, (584), 144 states have call predecessors, (584), 146 states have return successors, (672), 572 states have call predecessors, (672), 579 states have call successors, (672) [2024-11-11 20:28:51,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3293 states to 3293 states and 5418 transitions. [2024-11-11 20:28:51,295 INFO L78 Accepts]: Start accepts. Automaton has 3293 states and 5418 transitions. Word has length 154 [2024-11-11 20:28:51,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:28:51,296 INFO L471 AbstractCegarLoop]: Abstraction has 3293 states and 5418 transitions. [2024-11-11 20:28:51,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:28:51,297 INFO L276 IsEmpty]: Start isEmpty. Operand 3293 states and 5418 transitions. [2024-11-11 20:28:51,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-11 20:28:51,300 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:28:51,300 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:28:51,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-11 20:28:51,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:28:51,501 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:28:51,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:28:51,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1901042202, now seen corresponding path program 1 times [2024-11-11 20:28:51,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:28:51,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790133769] [2024-11-11 20:28:51,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:28:51,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:28:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:51,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:28:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:51,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:51,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:28:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:51,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-11 20:28:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:51,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:51,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:28:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:52,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:28:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:52,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:52,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:28:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:52,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:28:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:52,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 20:28:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:52,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-11 20:28:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:52,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:28:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:52,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:28:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:52,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-11 20:28:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:28:52,244 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-11 20:28:52,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:28:52,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790133769] [2024-11-11 20:28:52,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790133769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:28:52,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:28:52,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-11 20:28:52,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11893507] [2024-11-11 20:28:52,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:28:52,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-11 20:28:52,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:28:52,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-11 20:28:52,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:28:52,247 INFO L87 Difference]: Start difference. First operand 3293 states and 5418 transitions. Second operand has 11 states, 10 states have (on average 11.0) internal successors, (110), 7 states have internal predecessors, (110), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15)